Steam Plants - Assistant Engineer

Fine adjustments to a boiler combustion control system, to bring about near perfect combustion, should be made by manua...

A combustion control system diaphragm type air flow transmitter receives its high-pressure signal from the boiler ______...

A flame scanner installed in modern boiler combustion control systems, functions to _______________.

When warming up a fuel oil service system, you should open the steam supply to the fuel oil heaters _______________.

While trying to light off a burner on a semi-automated boiler, you note that the fuel oil solenoid valve at the burner w...

Valve "H" shown in the illustration, functions to _. Illustration SG-0009

The advantage of a counter flow fuel oil heater, as compared to a parallel flow fuel oil heater, is that the counter fl...

In the majority of marine power plants, the fuel oil heater installations are divided into several units because ______...

All oil-fired main propulsion burners with automatic safety control systems must automatically close the burner valve w...

Fuel oil solenoid valves at the burner fronts should be of the manual reset type to _______________.

From which of the areas listed are condensate drains normally collected and returned to the low-pressure drain system? ...

A basic comparison can be made between a low-pressure evaporator operation and a main condenser with regards to the remo...

To properly remove the burner tip nut from the burner barrel, the barrel should be _______________.

A flue gas analysis is performed to determine the _______________.

A mechanical carbon dioxide recorder operates by detecting the difference between air and the _______________.

When testing boiler flue gas with a chemical absorption apparatus, to obtain accurate results _______________.

If an analysis of boiler flue gas determines there is no excess air for combustion, you should expect the nitrogen cont...

Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates _______________.

Assuming all burners are clean and the fuel oil is at the correct temperature, it is considered good practice to adjust ...

Which of the following chemicals is used in an Orsat apparatus to absorb carbon dioxide?

When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because _______________.

The absence of carbon monoxide in the flue gas of a boiler indicates _______________.

When a propulsion boiler is removed from service for an extended period, why should the firesides be thoroughly dried af...

In a boiler equipped with an automatic feed water regulator, erratic variations in the water level could be caused by _...

Excessive foaming in a steaming boiler can cause damage to the _______________.

Oil accumulation in boiler water would _______________.

Damaging scale can form on the interior of superheater tubes as a result of _______________.

The boiler main feed stop-check valve is located nearest the _______________.

Which piping system is described in the illustration provided? Illustration SG-0010

In the system illustrated the valves at point "A" are _ . Illustration SG-0005

The main feed check valve functions to _______________.

A boiler feed stop valve must be mounted _______________.

When operating with the auxiliary feed line, feed water flow is controlled _______________.

If manual control of the water level in a steaming boiler is required, the proper method of control is with the auxilia...

Under EMERGENCY operating conditions, the proper valve positions for controlling feed water to the boiler should be the...

While underway, vacuum in the main condenser is primarily caused by the _______________.

In a marine condenser designed with a reheating hotwell, the hotwell is reheated by _______________.

The leakage of air into the pump casing by way of the packing gland of a condensate pump is prevented by ______________...

Which of the following actions should be taken to re-establish a 'blown' air ejector loop seal?

When condenser tube ends are rolled into both tube sheets, the different rates of material expansion are compensated fo...

Which statement listed represents a vital function of the main condenser?

Air accumulated in the after condenser of the air ejector unit is discharged directly to the _______________.

A main condenser utilizing a scoop for the circulation of sea water must be constructed as a _______________.

If the main condenser were operating at a vacuum of 28.5" Hg, a condensate discharge temperature of 86°F, a sea water in...

The differential temperature of the main condenser cooling water will be significantly affected by a change in ________...

Excessively hot water returning to an atmospheric drain tank indicates _______________.

Which of the conditions listed could prevent a centrifugal condensate pump from developing its rated capacity?

Salt water contamination of condensate could occur at which component?

Scale in the air ejector first-stage nozzle could cause a decrease in the _______________.

While maneuvering out of port, you answer a stop bell. You notice a lot of steam coming out of the gland exhaust condens...

When two or more boilers provide steam flow to a common main steam line, each boiler main steam line shall be fitted wi...

The phrase 'boiler water column' as defined in the regulations, refers to the _______________.

In the absence of the manufacturer's instructions, a good procedure in reassembling a high-pressure boiler gage glass i...

To properly blow down a boiler gage glass, you should _______________.

The boiler water gage glasses should be blown down _______________.

You are standing watch in the engine room of a steam vessel. You should blow down a gage glass periodically to _________...

How is boiler water forced to circulate faster in accelerated natural circulation boilers as compared to free natural ci...

Circulation of water and the steam/water mixture within a natural circulation boiler is retarded by _______________.

Arrow "B" shown in the illustration indicates the _. Illustration SG-0008

Overheating of the generating tubes will occur when a boiler reaches its end point of _______________.

In what section of a boiler would you find a steam quality of 90%?

Most main propulsion boilers are designed to produce _______________.

As compared with a typical front fired boiler, which of the listed conditions represents an advantage of a top fired boi...

The required number of pounds of steam generated per hour to develop contract shaft horsepower and maintain the specifie...

Which of the following statements represents the primary function of handholes used on a boiler?

Steam drum water level indicators must be calibrated to compensate for density differences between the indicated drum wa...

A natural circulation water-tube boiler, with one or more water drums, would be classified as a/an _______________.

Reaching which 'end point' will result in the most severe damage to the boiler?

Boiler refractories previously baked out and fired are most sensitive to _______________.

A corbel is used in a boiler furnace to _______________.

A secondary function of the refractory installed in a marine boiler is to _______________.

The useful life of furnace refractory is affected most by _______________.

An advantage of using boiler furnace studded water wall tubes packed with refractory is that _______________.

Which of the tube types listed can be considered to serve as downcomers at low firing rates, and as generating tubes at ...

In a D-type boiler, which of the tubes listed would be located in the generating tube bank?

The feed water heater shown in the illustration was designed to maintain the required feed water outlet temperature with...

Excessive carbon dioxide formed by improper chemical treatment in the boiler may cause corrosion in the _______________...

Excessive alkalinity of boiler water will cause _______________.

Boiler water hardness is increased by _______________.

If boiler water chemicals are decreasing in one boiler and increasing in the other boiler, while both are steaming at n...

A leak in a desuperheater could be indicated by an _______________.

Carbon dioxide dissolved in boiler water is dangerous in a modern power boiler because the gas _______________.

A malfunction in the DC heater is indicated by _______________.

The concentration of total dissolved solids in the boiler water can increase as a result of _______________.

When raising steam on a boiler, the superheater drains should _______________.

When raising steam on an idle boiler and the steam pressure has risen to about 5 pounds more than the pressure of the ...

After steam has been raised and a boiler is being placed on the line, the superheater vent can be closed when _________...

If a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line, the...

When preparing to cut a boiler in on the line, you determine that the steam pressure of the incoming boiler is about 5 p...

The time taken to raise steam on a cold boiler should always be _______________.

When raising steam on a cold boiler under normal conditions, you should always _______________.

While raising steam on a cold boiler, the air cock is to be closed after _______________.

The purpose of the steam control valves installed in the auxiliary exhaust line is to _______________.

A high water level in a deaerating feed heater will cause the automatic dump valve to drain condensate to the _________...

Which of the listed conditions aids in directing gland leak off steam from the low- pressure propulsion turbine to pass ...

Vent condensers are usually an integral part of deaerating feed heaters and serve to condense _______________.

With the steam control valve wide open during normal operation, the rate of steam flow from the auxiliary exhaust steam...

Why is it necessary to have a relief valve protecting the deaerating feed tank from internal pressure?

To provide emergency feed water supply to a steaming boiler, if it becomes necessary to secure the DC heater, suction s...

High-pressure steam drains are normally discharged to the _______________.

During cold ship start-up, you should open the feed water outlet and condensate valves to a DC heater in order to _____...

The gland exhaust fan draws steam and non-condensable vapors from the gland exhaust condenser and discharges to the ___...

Which of the following repairs should be made to a badly warped boiler tube?

The correct method of expanding a generating tube at the boiler drum tube sheet is to roll _______________.

A hole should be made in the sagged tube occurring in a water-tube boiler, prior to plugging the tube to prevent a ____...

If the engineer on watch has reason to doubt the accuracy of the water level showing in the boiler gage glass, he shoul...

An obstruction in the top connection of a boiler gage glass will cause the _______________.

Which of the following actions, if any, should be taken if the water gage glass on a steaming boiler breaks?

If the engineer on watch has reason to doubt the accuracy of the water level shown in the boiler gage glass, he should ...

While the vessel is rolling in heavy seas, the level in the boiler gage glass remains steady, this is an indication tha...

A leaky fuel oil heater relief valve could be indicated by an increase in the _______________.

Condensate accumulation in the steam side of a fuel oil heater could result in _______________.

If oil is found in the main fuel oil heater steam drain system, which of the actions listed should be taken first?

The rate of fouling on the oil side of a fuel oil heater is inversely related to the _______________.

When you are transferring fuel oil to the settling tanks, precautions to be observed should include _______________.

Fuel oil is transferred to the settling tanks for _______________.

When you are transferring fuel oil from one double bottom tank to another, precautions to be observed should include __...

Which of the pumps listed takes fuel oil suction from the double bottom tanks and discharges it to the settling tanks? ...

Before blowing tubes in a boiler equipped with steam soot blowers, you should _______________.

After routine blowing of tubes at sea, there should be a decrease in the _______________.

To avoid acid corrosion of the economizer tubes when blowing tubes _______________.

Before using a boiler compressed air soot blower system, you should _______________.

In most marine boilers, the primary reason the first few rows of generating tubes, called screen or furnace row tubes, a...

The boiler shown in the illustration has its screen tubes connecting the steam drum and the component labeled ' '....

The main steam stop valve on a "D" type marine boiler is located at the _______________.

In addition to a nozzle, a fuel oil atomizer uses which of the listed parts?

Which atomizing sprayer plate has the largest capacity?

The last two digits stamped on a fuel oil atomizer sprayer plate represents the cross-sectional area ratios of the tange...

What is indicated by the code number 32Y20 stamped on a burner sprayer plate?

The number '29' on a fuel oil burner sprayer plate marked '2909' indicates the _______________.

According to the illustration of a typical boiler furnace rear wall, which item number would best represent "insulating ...

Which of the following statements represents the function of insulating brick?

If a soot blower element does not revolve freely, the most likely cause would be _______________.

The DC Heater functions to _______________.

Which of the water supplies listed below is typically used as a cooling medium for the gland exhaust condenser, inter co...

If a salinity alarm system indicates 2.5 grains per gallon at the main condensate pump discharge, your first action sho...

What type of sensor is normally used with the automatic recirculating valve in the main condensate line?

Which of the listed conditions will always result in dissolved oxygen being carried over from the main condenser?

The atmospheric drain tank (ADT) normally drains to the _______________.

Cooling water to the vent condenser in a DC heater is supplied by the _______________.

Which of the components listed prevents water from flowing back into the auxiliary exhaust line if the deaerating feed t...

A triple element, main propulsion, boiler feed water regulating system commonly used aboard ship utilizes ______________...

A two-element boiler feed water regulator is controlled by _______________.

The two-element feed water regulator functions similarly to the three-element feed water regulator, but does not utiliz...

Which type of feed water regulator listed provides the MOST effective regulation of boiler water level under all operati...

A pneumatic dual element, main propulsion, boiler feed water regulating system commonly used aboard ship utilizes _____...

A single element boiler feed water regulating system used aboard ship utilizes _______________.

A major difference between the two element and the three element feed water regulator control systems is that a three el...

The purpose of the cam-actuated steam valve used in a boiler soot blower system is to _______________.

The boiler shown in the illustration, arrow "O" indicates the Illustration SG-0007

The purpose of the pressure control disk installed in the multi-nozzle soot blower, as shown in the illustration, is t...

The illustrated burner atomizer assembly is . Illustration SG-0022

The amount of oil atomized by a straight mechanical fuel oil burner depends on the sprayer plate size and the _________...

The primary purpose of the sprayer plate in a mechanical atomizing oil burner is to _______________.

Which of the following fuel oil characteristics establishes the danger point when transferring, pumping, and firing proc...

Which characteristic of fuel oil is the most significant when determining the temperature to which the fuel oil must be ...

Which of the following actions should be taken FIRST when water is found in the fuel oil settling tank?

Which of the following would indicate a moderate leak in the desuperheater?

When preparing to light off a cold boiler equipped with a return flow fuel oil system, the recirculating valve directs ...

Which of the automatic boiler controls listed should be tested prior to lighting off an auxiliary boiler?

Why should the main steam stop valve of an auxiliary boiler be eased off its seat and then gently closed before lighting...

Which statement is true concerning two-stage air ejector assemblies?

Main condensate recirculating systems are primarily intended to _______________.

Which of the devices listed is used to keep overheated condensate from flowing to the deaerating feed tank?

While vacuum is being raised on the main unit and the turbine is being warmed, condensate is recirculated to the main c...

Serious tube leaks in the air ejector condenser assembly will cause _______________.

Why does air entry into the main condenser reduce the efficiency of the steam cycle?

The loop seal connected to the main condenser returns the drains from the _______________.

A salinity indicator cell is located in the _______________.

Air accumulated in the inter condenser of the air ejector assembly is discharged directly to the _______________.

The automatic recirculating valve in the main condensate recirculating line is controlled by a temperature sensor which...

Insufficient combustion air supply to the furnace would cause _______________.

Under otherwise normal steaming conditions, an abnormally high temperature at the superheater outlet of a single furnac...

Which of the listed conditions can cause high superheater outlet steam temperature in an automated boiler?

If a pressure drop does not exist across the superheater in a steaming boiler _______________.

A heavy accumulation of soot on the fireside of the superheater can cause a _______________.

Coast Guard Regulations

The MAWP of a boiler is 900 psi and the normal drop across the superheater is 20 psi. If the superheater safety valve is...

If the maximum steam generating capacity of a boiler is increased Coast Guard Regulations

Coast Guard Regulations

Coast Guard Regulations, 46 CFR Part 54, require steam safety and relief valves to be provided with a substantial liftin...

Coast Guard Regulations

Coast Guard Regulations

The safety valve nominal size for propulsion boilers and superheaters must be not less than 1 1/2 inches and not more th...

Coast Guard regulations require that the relieving capacity of boiler safety valves must be checked _______________.

A boiler superheater safety valve is set to lift at 450 psi

Which of the actions listed should be carried out immediately after securing the fires in one boiler of a two boiler shi...

Which of the valves listed should be closed before lighting off a boiler?

Which of the following statements about boilers is correct?

A boiler is to be secured in port. After the burners have been secured, the forced draft fan and air registers should b...

When a boiler has been secured and is being initially cooled, the water level showing in the steam drum gage glass shou...

If a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line, the...

After a boiler has been taken off the line and is cooling, the air cock is opened to _______________.

Which of the following is the best reason for opening the air cock when draining a water-tube boiler?

The steam separator as used in conjunction with a steam whistle normally drains to which of the listed drain systems? ...

The items labeled "A" in the illustration are the _______________. Illustration SG-0025

A slight vacuum is maintained in the shell of the first stage heater shown in the illustration. The primary reason for...

Which of the following statements is correct concerning the operation of the level or drain regulator associated with th...

The connections labeled "A" in the illustration, are used to _______________. SG-0025

Under normal conditions, the rate of heat transfer in a feed water heater is most greatly affected by the _____________...

The unit shown in the illustration is used as the _______________. Illustration SG-0025

The feed water heater shown in the illustration is actually comprised of three separately functioning heat exchangers. T...

The function of item "E" shown in the illustration is to_______________ Illustration 0099 . Illustration GS-0099

The glass used in a flat-type boiler water gage is protected from the hot steam and water by a/an _______________.

The purpose of the mica used in a boiler water gage glass assembly is to prevent _______________.

In a boiler water gage glass, a ball check valve is installed on the _______________.

The items labeled "D" and "M" as indicated on the illustration are commonly called _______________. Illustration SG-0020...

Bi-color water level indicators, connected directly to the boiler drum, operate on the principle of _______________.

Which of the listed problems will happen when the water level of a fire-tube type auxiliary boiler approaches the crown ...

Which of the following statements concerning fire-tube boilers is correct?

The tube sheets installed in a fire-tube auxiliary boiler are normally connected by _______________.

Fusible plugs are installed in fire-tube boilers to _______________.

The boiler shown in the illustration would be classed as________________. Illustration MO-0064

Poor atomization accompanied by an elongated flame from a steam atomization burner is MOST likely caused by ___________...

Boiler furnace brickwork can be fractured and broken by thermal shock caused by _______________.

Which of the conditions listed can cause the flame of a mechanically atomized burner to be blown away from the burner ti...

In a multi-burner firebox, a burner tip with a worn and enlarged orifice will _______________.

When drying and baking are impractical, or time is not available, which of the listed materials could be used to repair ...

To assure a long service life for boiler refractory materials after installation, the most effective method is to _____...

To make temporary emergency repairs to brickwork in a boiler furnace, which of the materials listed should be used? ...

Radial cracks have developed in the castable refractory of the burner cones after the first firing since the installati...

To prevent a small plastic refractory wall patch repair from falling into the furnace of a D-type boiler, you should __...

Which of the following conditions is indicated by an external bulge or bowed area of the boiler furnace wall?

Which of the following problems can occur when an excessive number of water screen tubes are plugged?

Slag buildup on boiler furnace refractory is undesirable because it causes _______________.

Which of the conditions listed occurs when glassy slag, formed by the burning of fuel oil contaminated with salt water, ...

In an air register assembly, the majority of air passes through the _______________.

According to the illustration, what part number identifies the "air doors"? Illustration SG-0016

What is the purpose of the movable air doors in an air register?

According to the illustration, what part number identifies the "air door handle"? Illustration SG-0016

Which of the following represents the function of the diffuser used with a mechanical atomizing oil burner?

The purpose of a 'peep' hole in the boiler casing is to _______________.

According to the illustration, what part number identifies the "igniter"? Illustration SG-0016

According to the illustration, what part number identifies the "diffuser"? Illustration SG-0016

If one fuel oil strainer of a duplex unit becomes clogged while the vessel is steaming at sea, the FIRST action should ...

The bottom blow valve on a water-tube boiler is usually attached to the _______________.

According to Coast Guard Regulations

The primary purpose of a control desuperheater installed in the steam drum of a boiler is to _______________.

Which of the following locations could desuperheated steam be considered to occur?

The device shown in the illustration is a/an _______________. Illustration SG-0013

Desuperheated steam can be found at the _______________.

According to the data given in illustration, which of the following would be the physical state of the fluid at a gage v...

With reference to the chart, if a boiler generates saturated steam at 385.3 psig, how much heat per pound was required t...

According to the data given in the illustration, which of the following would be the physical state of the fluid at a ga...

Assume that steam has formed in a boiler in which all of the steam stop valves are closed, and the water level is held c...

Steam tables can be used to obtain the _______________.

With an increase in the saturation pressure of a fluid, the value represented by line "5" on the graph will __________...

In the event of a failure of the pneumatic control system, a multi-element feed water regulator is designed to operate ...

Under EMERGENCY operating conditions, the proper valve positions for controlling feed water to the boiler should be the...

One boiler of a two boiler plant has ruptured a tube and the water cannot be maintained in sight in the gage glass. Afte...

The solenoid valves in the fuel oil supply line to an automatically fired auxiliary boiler are automatically closed by ...

When the steam pressure drops below a set value on an automatically fired auxiliary boiler, fitted with rotary cup atom...

A variable capacity, pressure atomizing, fuel oil burner functions to _______________.

Control of the fuel oil metering valve in an automatically fired auxiliary boiler is accomplished by a _______________.

Which of the following statements describes how the fuel oil enters the whirling chambers of the sprayer plates used in ...

Coast Guard Regulations

In accordance with Coast Guard Regulations

Coast Guard Regulations

According to Coast Guard Regulations

Coast Guard Regulations

Coast Guard Regulations

To obtain the best mixing of air and fuel with a fuel oil atomizer, you need to adjust the _______________.

Which precaution should be observed to prevent damage to the fuel oil service pump when warming up the fuel service syst...

Which of the following procedures represents the proper care of unused burners during low load conditions?

Which of the following represents the proper color of the flame end farthest from the boiler burner during normal operat...

If one burner of a group of operating steam atomizing burners in a steaming boiler is cut out, the register doors for t...

Modern day boiler automation allows bypassing the "flame safeguard" system to permit a burner to have a "trial for ignit...

While your vessel is steaming with one boiler, the automatic combustion control system sensing line for the idle boiler ...

In a boiler automation system, if a burner fuel oil solenoid valve continually trips closed under normal steaming condi...

If an automatically fired burner ignites, but repeatedly goes out within two seconds, the cause could be a/an _________...

If the theoretical quantity of dry air required to burn one pound of fuel oil is 13.75 pounds, what is the weight of air...

Using an oil temperature-viscosity chart, you can determine the recommended _______________.

If the stack temperature is higher than normal, this could indicate _______________.

Which of the following statements concerning fire-tube boilers is correct?

Auxiliary boilers are divided into several classifications, one of which is _______________.

The purpose of the separating nozzle in the accumulator of a water-tube, coil-type, steam generator is to separate ____...

The gage glass on a coil-type auxiliary boiler is connected to the _______________.

The rate of heat transfer in a water-tube auxiliary boiler can be increased by _______________.

Downcomers installed on auxiliary package boilers are protected from direct contact with hot gases by _______________.

Large steam drums are not required in the design of a coil-type auxiliary water-tube boiler because _______________.

The purpose of try-cocks used on an auxiliary boiler is to _______________.

In a coil-type forced circulation auxiliary water-tube boiler, _______________.

Bottom blow valves are installed on auxiliary water-tube boilers to _______________.

Which of the following statements represents the Coast Guard Regulation regarding a boiler installation in which the sup...

When preparing to hydrostatically test water-tube boilers, you should _______________.

Coast Guard Regulations

According to 46 CFR Part 61, which of the following statements is true concerning the inspection of water-tube boilers? ...

Which of the Coast Guard publications listed contain the information regarding allowable repairs to boilers installed on...

Which of the following statements is true concerning boiler inspections?

According to Coast Guard Regulations

A nozzle reaction safety valve will lift at a pressure lower than required if the _______________.

The boiler economizer provides additional heat to the _______________.

The main steam stop bypass valve is used to _______________.

Scavenging air is supplied to steam soot blower elements to _______________.

Boiler fuel savings gained by the use of an economizer can amount to _______________.

The minimum feed water inlet temperature to a boiler economizer is determined by the _______________.

A check valve is located between the economizer and the steam drum to _______________.

Which of the devices listed is indicated by arrow "H" shown in the illustration? Illustration SG-0008

Which of the conditions listed could cause steam formation in the economizer?

The turbo-generator steam stop is located between the superheater outlet and the main steam stop valve to _____________...

Insufficient combustion air supply will cause an atomizer flame to appear as a _______________.

Accumulation of fuel oil in the boiler double casing could be caused by _______________.

If a boiler is smoking black and increasing the boiler front air box pressure does not reduce the smoke, the cause can ...

When a boiler flareback occurs, you should _______________.

Throttling the burner air register of a lit burner could result in _______________.

Insufficient air for combustion in a boiler furnace could result in a _______________.

In a boiler furnace, incomplete combustion due to insufficient air yields an excess amount of _______________.

Excessive accumulation of carbon deposits on a boiler burner throat ring and diffuser could result in _______________.

When the flame scanner senses flame failure during boiler operation, which of the listed events will occur FIRST?

Combustion control systems on automatic boilers are designed to prevent immediate burner ignition after a normal or safe...

When firing a boiler in local manual control, an increase in boiler load must be accompanied by a/an _______________.

In an automatically fired boiler, the steam pressure regulator controls the supply of fuel oil to the burners by respon...

In automated boiler operations, a dirty flame scanner will most likely result in _______________.

Which of the following represents a significant system limitation to be aware of when a burner management system is oper...

A photoelectric cell is installed in an oil fired boiler safeguard system to introduce proper resistance values to the e...

As found in a basic pneumatic automatic combustion control system, the function of a standardizing relay is to ________...

In automatic combustion control systems, increasing or decreasing a loading pressure by a set amount is called ________...

The component labeled "F" as shown in the illustration is_______________ Illustration SG-0007

The entire unit which houses the burner, air scoop, air doors and bladed cone is correctly called the _______________.

Which of the terms listed represents the ratio between the highest and lowest fuel oil pressure at which the burners wil...

Which of the conditions listed would indicate excessive soot buildup on the economizer?

Which of the conditions listed could cause a boiler economizer to leak?

Boilers equipped with steam atomizers can operate over a wide load range without cutting burners in and out because ___...

In a steam assist atomizer, the fuel oil/steam mix takes place entirely within the _______________.

In a steam assist fuel oil atomizer, the steam pressure is higher than the oil pressure at _______________.

Compared to the return flow oil burner system, an internally mixed steam atomizer requires _______________.

The variable capacity pressure atomizing fuel oil burner functions to _______________.

In most installations, the firing rate of a boiler using steam atomization is indicated by the _______________.

A boiler internal feed pipe is perforated to _______________.

Which of the following statements represents one operational characteristic of a cyclone steam separator?

Where is the 'dry pipe' located in a boiler?

Which of the types of superheaters listed has the flattest superheat temperature curve?

The boiler superheater shown in the illustration is a/an_______________ Illustration SG-0007

In a boiler equipped with a convection type superheater, the superheater tubes are located _______________.

Where is the superheater located in the boiler shown in the illustration? Illustration SG-0008

Which of the devices listed is shown in the boiler illustration? Illustration SG-0008

Which of the listed systems would be a potential source for the high-pressure drain system?

Clean low-pressure steam drains are collected in the _______________.

The net positive suction head of a boiler centrifugal feed pump should be calculated over and above the ______________...

The boiler feed water control valve varies the unity relationship between steam and water flow during periods of ______...

Deaeration of condensate primarily occurs in what section of the illustration shown? Illustration SG-0010

Which of the following is the advantage of operating a typical closed feed water system for a marine boiler when compare...

Which of the listed components would be considered the dividing line separating the condensate system from the feed wate...

In the boiler steam and water system, pressure is highest in the _______________.

The MOST common cause of heat blisters developing on boiler generating tubes is due to _______________.

Oil or scale deposits on boiler tube walls will cause _______________.

If a boiler tube bank baffle carries away, or burns through, there will be _______________.

Boiler tube failures can result from _______________.

Why are hard scale deposits on the inside of boiler tubes most objectionable?

In a regenerative air heater, air is bypassed around the heater while _______________.

The boiler wrapper sheet, shown in the illustration, is indicated by arrow . Illustration SG-0007

Steam baffles are used in the steam drum of a water-tube boiler to _______________.

The main purpose of the boiler steam drum component shown in the illustration is to _______________. Illustration SG-00...

That portion of the steam drum, containing a manhole for internal access to the drum, for the purpose of cleaning, insp...

The purpose of the boiler drum air cock is to _______________.

Which of the following statements concerning boiler steam drum surface blow piping is correct?

When installing new safety valve escape piping, precautions should include assuring that _______________.

To minimize metal corrosion, boiler water is best kept _______________.

A water-tube boiler can be laid up either wet or dry. If it is to be laid up wet, you should _______________.

When a boiler water test indicates a pH value of 6, you should _______________.

Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?

Scale prevention in boiler water is accomplished by adding treatment chemicals to _______________.

The major reason dissolved gases are removed from boiler feed water is because they may cause _______________.

An adequate phosphate reserve should be maintained in boiler water to _______________.

Although accurate tests of boiler water for dissolved oxygen are difficult to obtain onboard ship, you can be fairly ce...

In the prevention of moisture carryover from a marine boiler, one important consideration is to _______________.

Ferrous sulfate tends to go into solution in boiler water when the value of the hydrogen ion concentration increases. C...

Which of the listed operating practices is considered as safe, and should be followed when opening and inspecting the wa...

Which of the precautions listed should be taken when gagging a boiler safety valve?

If it should become necessary to abandon a compartment because of the danger of a large steam leak on a boiler, which of...

While your vessel is underway at normal speed, a steam drum safety valve develops a significant leak. Your first correc...

What is the cause of 'laning' in a boiler tube bank?

Lower than normal steam pressure in an operating boiler may be caused by _______________.

Before an explosion can occur in a boiler furnace, there must be an accumulation of unburned fuel, sufficient air to fo...

Water in the fuel supply to a steaming boiler can be detected by _______________.

Condensate pumps have distinctly noticeable characteristics and can usually be recognized by their _______________.

The leakage of air into the pump casing by way of the packing gland of a condensate pump is prevented by _______________...

In a main propulsion steam turbine installation, the condensate pump initially discharges to the _______________.

In the boiler shown in the illustration, the arrow "E" indicates a _______________. Illustration SG-0008

Testing boiler water for chloride content will indicate the amount of _______________.

A dissolved oxygen concentration of 8.0 ppm represents _______________.

Normally a boiler water sample should be taken _______________.

A sample of boiler water can be chemically tested for alkalinity by initially adding a few drops of phenolphthalein and...

What boiler water chemistry is necessary to ensure the precipitation of hard scale forming calcium?

A boiler water sample being collected for analysis should be circulated through a cooling coil because _______________.

A boiler with a water capacity of 10 tons generates steam at the rate of 30 tons per hour. If the feed water quality is ...

Phenolphthalein is used as an indicator to test boiler water for _______________.

The amount of sodium phosphate in treated boiler water can be measured by a/an _______________.

If a quantity of saturated steam consists of 90 percent steam and 10 percent moisture, the quality of the mixture is __...

If a boiler generates saturated steam at 125.3 psig, how much heat is required to change the water into steam if the fee...

The greatest deterrent to heat transfer from the fireside to the waterside of a boiler is _______________.

Which of the stated pressure conditions identifies the boiler design pressure?

Most marine boilers are designed to produce _______________.

Which of the following statements describes the effects that dissolved oxygen has on boiler internal surfaces with chang...

At a given pressure, erosion of steam piping and machinery will be minimized by utilizing _______________.

Which type of energy conversion is associated with an operating steam boiler?

The best conductor of heat in a marine boiler is _______________.

Which of the following conditions must exist before the superheating of saturated steam can occur in a steam propulsion ...

According to Coast Guard Regulations

Coast Guard Regulations

Coast Guard Regulations

Which of the following precautions should be taken prior to lighting off a boiler?

The superheater vents should always be open when _______________.

Why should the fuel oil be recirculated before lighting off a cold boiler?

Prior to lighting a burner in a cold boiler, you should _______________.

Many steam plants are designed so that diesel oil can be provided to the burners when _______________.

Which of the valves listed should be closed before lighting off a boiler?

Steam assist fuel atomizers are converted to straight mechanical atomizers in order to _______________.

While underway on watch in the engine room of a steam vessel, the proper valve positions for controlling feed water to t...

Which system should be tested and used when required to raise the water level in an idle boiler?

When operating with the auxiliary feed line, feed water flow is controlled _______________.

If a ship is to be laid up for an indefinite period, the steam side of the main condenser should be _______________.

Eight

Proper use of the boiler surface blow will _______________.

Before giving a boiler a bottom blow, it should be taken off the line and then the _______________.

Dissolved oxygen can be removed from the boiler water by _______________.

Which of the listed methods can be used to blow down a boiler without securing the fires?

A unit of measure used to express the chloride content of boiler water is _______________.

Treatment of boiler feed water for the control of hardness is necessary to prevent _______________.

Chemicals are added to boiler water to _______________.

As the pH of the boiler water approaches zero, the water becomes increasingly _______________.

A higher than normal stack gas temperature could indicate _______________.

Which color burner flame would indicate too much excess air?

Lower boiler efficiency results from carrying too much excess air because _______________.

If the flue gas oxygen content is too high, you should _______________.

Which of the conditions listed may be indicated by the lifting of the DC heater relief valve?

The water level in a steaming boiler has risen to within 2 inches from the top of the gage glass. Your immediate action...

In a closed feed and water cycle, which of the conditions listed could prevent vacuum from reaching the desired level? ...

If the DC heater relief valve lifts frequently, the cause can be excessive _______________.

Which of the following statements represents the advantage of using a small diameter boiler tube over a larger diameter ...

Improper water washing of the water-tube boiler firesides can cause _______________.

Which procedure should be followed to dry out the fireside of a boiler after water washing?

According to the illustration of a typical boiler furnace rear wall, which item number would best represent "standard fi...

Which of the listed refractory materials is capable of providing structural stability?

When heated, brickwork in a boiler is kept from buckling by the installation of _______________.

When excessive static boiler pressure has resulted in the initial lift of the valve disc, a huddling chamber safety val...

The popping pressure of the safety valve, shown in the illustration, is controlled by the _ _. Illustration SG-001...

A boiler accumulation test is used to measure the _______________.

Proper bracing and support of the boiler safety valve escape piping is necessary to _______________.

The primary operational difference between a huddling chamber type safety valve and a nozzle reaction type safety valve...

On a boiler safety valve, the blow down adjusting ring is locked in place by a _______________.

Which of the listed types of safety valves is shown in the illustration? Illustration SG-0018

On a boiler equipped with pilot actuated safety valves, which of the valves listed will be actuated first?

A boiler safety valve must be capable of _______________.

One of the important functions of the superheater safety valves is to _______________.

The fins on the tubes of a fin type fuel oil heater are provided to _______________.

The relief valve on the discharge side of the fuel oil service pump may discharge directly to the suction side of the p...

Pumps normally used for fuel oil service are _______________.

All fuel oil service pumps are equipped with a _______________.

The viscosity of a residual fuel oil is measured in Saybolt _______________.

The valve located between the fuel oil header and the burner valve is known as the _______________.

Strainers are installed in boiler fuel oil service lines to _______________.

The boiler fuel oil service pump normally takes suction from the _______________.

If a centrifugal main feed pump were operated at shutoff head with the recirculating line closed, which of the following...

A turbine-driven centrifugal feed pump used for boiler feed service should normally be stopped by _______________.

The main boiler feed pump discharge is controlled by the admission of steam to the auxiliary turbine. The admission of ...

To prevent pulsations from developing in the boiler feed water lines, the discharge side of a reciprocating feed pump i...

During initial starting of the standby turbine-driven boiler feed pump, which of the listed valves should remain closed?...

The pressure in the feed water system must exceed boiler steam drum pressure in order to _______________.

Which of the following statements is correct regarding the start-up operation of a non-condensing turbine-driven feed pu...

Recirculation of the feed water ensures a flow of water through the _______________.

If it is necessary to operate a turbine driven main feed pump at shut off head, or at less than 20% of its rated capacit...

Which of the following actions takes place in the control circuit of an automatically fired auxiliary boiler when the de...

Which of the listed sequence of events occurs when an automatic auxiliary boiler is prepurged?

A photoelectric cell installed in an automatically fired auxiliary boiler burner management system _______________.

The pressuretrol which is installed on an auxiliary boiler senses steam pressure changes and _______________.

The primary function of a flame safeguard system, as used on an automatically fired auxiliary boiler, is to prevent ___...

Constant capacity, pressure atomizing, fuel burners designed to meet a wide variation in steaming loads on an auxiliar...

During unsafe firing conditions in a large automatic auxiliary boiler, various control actuators are interlocked with th...

One factor for determining the minimum feed water inlet temperature to a boiler economizer is the _______________.

If there is a sudden drop in the outlet temperature of an uncontrolled superheater, you should _______________.

To safely decrease the boiler firing rate, you should always reduce the fuel pressure _______________.

As the percentage of CO2 in the stack gas decreases, you can assume that _______________.

Which of the following items should be checked each time the firing rate or forced draft pressure is adjusted?

When increasing the firing rate of a boiler, which of the following should be carried out FIRST?

When answering a full astern bell from half ahead, the superheater outlet temperature on a single furnace boiler will _...

Coast Guard Regulations

When a boiler economizer is fitted with a valved bypass, Coast Guard Regulations

The minimum temperature requirements for fuel oil in storage tanks is related to the _______________.

Which of the significant combustible elements of fuel oil is a major source of boiler corrosion?

The property of a fuel oil which is a measurement of its available energy is known as its _______________.

The most harmful slag forming compounds found in fuel oils are _______________.

According to Coast Guard Regulations

The temperature of the fuel oil received during bunkering operations is critical in determining the _______________.

The flash point of a residual fuel oil should be used to determine the highest temperature to which the oil may be heat...

The main reason for having a low suction line on the fuel oil service or settling tanks is to _______________.

Which constituent of fuel oil determines the specific heat?

Which combustible element in fuel oil is considered a significant and major source of air pollution?

The BTU value of fuel oil is determined by a/an _______________.

When heated, fuel oil will _______________.

The component lettered "J" shown in the illustration serves as a _______________. Illustration SG-0007

The advantage of installing water wall tubes in a boiler furnace is to _______________.

Which action should be taken if the water level in the boiler gage glass drops out of sight and the burners fail to secu...

If a major flareback occurs to a boiler, which of the following actions should be immediately taken?

After restoring the normal water level in a boiler following a high water casualty, you should _______________.

Which of the following actions should be carried out if the boiler water level is falling due to a tube failure?

If the water level in one boiler of a two boiler plant rapidly falls out of sight, which of the following actions should...

If while filling the boiler a newly installed gasket on a water-tube handhole plate weeps, you should _______________.

When cleaning the waterside of boiler tubes with a powered rotary brush, the brush should be kept in motion to _________...

Which of the following statements defines the term 'axial float' in reference to reduction gears?

The purpose of the main reduction gears is to _______________.

The reduction gear shown in the illustration is a/an _______________. Illustration SE-0013

After the housing has been bolted down, the final check of reduction gear tooth contact is usually made by ____________...

Which of the following types of bearings are used for the reduction gears in a marine steam turbine installation? ...

The component shown in the illustration, labeled "I", is the _______________. SE-0013

The component shown in the illustration, labeled "III", is the SE-0013

The component shown in the illustration, labeled "IV", is the SE-0013

Reduction gears for main propulsion turbines are lubricated by _______________.

A ship is equipped with the illustrated turbine gear set and a right hand turning propeller. When steam is admitted to t...

What is the significance of pinion deflection in the operation of reduction gears?

In a steam turbine and reduction gear main propulsion plant, the alarm sensor for low turbine oil pressure is usually i...

Oil supply pressure to the main lube oil header of a gravity feed lube oil system is _______________.

On a ship equipped with a gravity type lube oil system, which of the conditions listed will occur FIRST if the main lube...

Oil flowing through the sight glass in the line between the lube oil gravity tank and main sump indicates the _________...

Which of the following statements about gravity type lube oil systems is correct?

In steam turbine and reduction gear units, lube oil coolers installed in the lube oil system are located between the __...

In a gravity lube oil system, a sight glass is installed in a line near the operating platform. This line connects the ...

Which of the following statements is true concerning the lube oil system shown in the illustration? Illustration SE-0011...

After starting the main lube oil pump in a gravity-type lube oil system, you should verify that the gravity tanks are f...

When a turbine rotor is not rotating during maneuvering, the heat tends to be concentrated at the _______________.

With vacuum up and the main propulsion turbine standing by while awaiting engine orders, it is necessary to roll the uni...

Which of the journal bearings listed most easily accommodates the minor turbine shaft misalignment?

On a main propulsion turbine bearing, the readings obtained with a bridge gage represent the _______________.

The adjustable spherically seated self-aligning bearing housings used in main turbines are provided with oil deflector ...

The correct radial clearances between the rotor and the casing in a propulsion turbine are maintained by the turbine __...

Main steam turbine bearings are lined with _______________.

Journal bearings used with modern turbine rotors are manufactured in two halves in order to _______________.

For a large main propulsion turbine, the most commonly used turbine thrust bearing is the _______________.

In the diagrammatic arrangement of the thrust bearing, shown in the illustration, the direction of shaft rotation and th...

As found in a reduction gear drive system, thrust bearings serve to _______________.

In the thrust bearing assembly illustrated the total oil clearance can be correctly decreased by . Illustration SE...

A Kingsbury, or pivot shoe type thrust bearing, can bear much greater loads per square inch of working surface than can ...

The base ring shown in the illustration is identified by the letter _______________. Illustration SE-0012

Which of the following statements describes how the main propulsion turbine over speed relay initiates closing of the th...

Turbine throttling losses can best be described as a loss of energy occurring _______________.

Most auxiliary turbines do not require an external source of gland sealing steam because they _______________.

Which of the coupling types listed is shown in the illustration? Illustration SE-0001

Which of the following statements is true concerning the coupling shown in the illustration? Illustration SE-0001

On main turbine propulsion units, gear-type flexible couplings are generally used between the _______________.

Axial movement in a gear-type flexible coupling is provided for by _______________.

Which of the devices listed is commonly used to compensate for the expansion and minor misalignments occurring between t...

The part shown in the illustration would be located between which of the following components of a modern geared turbine...

The gravity tank in a gravity lube oil system serves to _______________.

Which of the following conditions is indicated by oil flowing through a lube oil gravity tank overflow sight glass? ...

Why is superheated steam used in the main propulsion turbines instead of saturated steam?

As steam first enters the main propulsion turbine, which of the following energy conversions takes place?

In a cross-compounded turbine propulsion plant, steam enters the _______________.

When a turbine is in operation, a rotor position micrometer is used to determine any change in rotor _______________.

A turbine assembly in which steam flows in series through a high-pressure turbine and then on to a low-pressure turbine,...

Concerning the classification of steam turbines, a cross compound designed unit _______________.

As steam accomplishes work in an engine or turbine, the pressure of the steam is reduced because it _______________.

What is generally found at the end of the low-pressure turbine rotor of a cross compound turbine arrangement?

The type of turbine shown in the illustration is classified as a Illustration SE-0003

Design characteristics of a velocity-compounded impulse turbine include the utilization of _______________.

A pressure-velocity compounded impulse turbine consists of _______________.

When starting a turbo-generator, you must provide lube oil pressure to the governor power piston by means of __________...

Which of the listed parts illustrated in the turbo-generator governing system, provides the follow-up to prevent the noz...

If two turbo-generators with the same no-load speed settings are operating in parallel, the unit whose governor has the...

A pilot valve and servomotor are utilized in mechanical-hydraulic governing systems on a turbo-generator unit in order ...

A back pressure trip on a ship's service turbo-generator functions to trip the turbine under what circumstance?

Which of the listed actions will occur when there is an increase in load on a ship service generator equipped with a cen...

Which of the statements listed applies to the quill shaft shown in the illustration? Illustration SE-0005

Which of the following statements concerning the design of balanced throttle valves is correct?

The main throttle valve on a main propulsion turbine admits steam directly into the _______________.

In the illustration of a typical ship service turbo-generator control system, the handle labeled "B" is used to ______...

To test an automatic low lube oil pressure trip on an idling turbo-generator and at the same time prevent the chance of...

The turbine of a turbo-electric drive should be secured by _______________.

An auxiliary turbine boiler feed pump should normally be stopped by _______________.

A turbo-generator back pressure trip can be actuated as a result of _______________.

In addition to causing erosion of turbine blades, slugs of water in the steam supply to a turbine-driven pump can resul...

The main propulsion turbine can be damaged by _______________.

Excessive thrust bearing wear in a main propulsion turbine rotor should FIRST become apparent by _______________.

A common cause of the Babbitt linings cracking in a turbine journal bearing is from _______________.

An overheated bearing in the main propulsion unit is indicated by _______________.

The original bridge gage reading for a reduction gear bearing was measured as 0.008 inches. A year later, the bridge gag...

When securing a main propulsion turbine equipped with carbon packing glands, the vacuum should always be broken before ...

To prevent damage to the turning gear mechanism, which of the following procedures must be carried out before the turnin...

To stop the rotor of a main turbine while underway at sea you should _______________.

The jacking gear must be engaged as quickly as possible when securing the main turbines in order to _______________.

In securing the main turbines, steam to the second stage air ejectors should be left on for a short period of time in o...

The FIRST step in breaking vacuum on a main turbine unit should be to _______________.

A pressure drop occurs across both the moving and fixed blades of a reaction turbine as a result of the _______________...

In what classification of steam turbines are the moving blades and the adjacent fixed rows of blades shaped to act as no...

Why do double flow reaction turbines produce very little axial thrust?

What happens to the steam as it moves across the moving blades in a reaction turbine?

In which type of turbine does a pressure drop exist through the fixed blades and the moving blades?

What is used to compensate for the increased possibility of blade vibration occurring with impulse turbine blading? ...

An energy loss associated with a reaction turbine, but not an impulse turbine, is _______________.

Which of the parts listed for a reaction turbine serve the same function as the nozzles of an impulse turbine?

The general method of reducing turbine reaction blade vibration is by the use of _______________.

An impulse-reaction turbine is characterized by which of the following arrangements?

When the flow of oil admitted to a disk-type centrifugal purifier is in excess of its designed capacity, which of the fo...

Which of the following problems will occur if a manually cleaned disk-type centrifugal lube oil purifier contains insuff...

The maximum lube oil temperature leaving a large, main propulsion steam turbine bearing should _______________.

Water retained in the lube oil system of a main propulsion turbine installation is undesirable because it _____________...

If salt water leaks into and contaminates the main lubricating oil system, which of the following remedial actions shoul...

Which of the following conditions may exist if you detect an excessive amount of metal particles on a main engine lube o...

A cloudy or milky appearing lube oil sample, taken from the main lubricating oil system could be caused by ____________...

While a vessel is underway, which of the conditions listed would indicate a leak in the lube oil cooler?

Which of the following would contribute to the formation of an oil and water emulsion, in addition to acid formation? ...

If a lube oil pump fails to build up discharge pressure, the cause could be the _______________.

What type of lube oil cooler is shown in the illustration? Illustration GS-0122

During high-speed operation of the main turbine propulsion unit, the heat absorbed by the lubricating oil is removed by...

Which of the following statements is true concerning lube oil coolers?

An efficient seal is normally obtained between the upper and lower halves of a turbine casing by _______________.

Allowance for axial expansion of the steam turbine due to temperature changes is provided for by the use of ___________...

Turbine casing flanges are sometimes provided with a system of joint grooving to _______________.

The size of the discharge ring used for the efficient operation of a disk-type purifier is dependent upon the _________...

One function of the disks, in a disk-type centrifugal purifier, is to divide the bowl space into many separate passages...

In a disk-type centrifugal purifier, the contaminated oil enters the centrifuge _______________.

The disk stack and tubular shaft used in a lube oil centrifugal purifier is forced to rotate at bowl speed by _________...

In a disk-type lubricating oil purifier, _______________.

In the operation of a lube oil clarifier, the position of the oil/water interface should be _______________.

Of the many impurities commonly found in marine lubricating oil, which of the following CANNOT be removed by a centrifug...

In order to obtain the best performance with a lube oil purifier, the lube oil inlet temperature should _______________...

The water seal in a centrifuge, operating at normal speed, prevents the lube oil from discharging from the water outlet...

A centrifuge will satisfactorily remove which of the listed substances from lube oil?

In order to maintain the effectiveness of the lube oil centrifuge to remove water, the engineer in charge should _______...

When water is removed from lube oil passing through a centrifugal purifier, the water removed will _______________.

Which of the following statements concerning the operation of a lube oil purifier is correct?

Labyrinth packing rings are installed on turbine diaphragms to minimize _______________.

Labyrinth seals used to reduce leakage around a turbine shaft are constructed of _______________.

When turbine rotor shafts extend through the casing, an external source of sealing steam is used in conjunction with la...

The labyrinth seals used on rotating steam turbine shafts reduces external leakage by causing _______________.

Where are moisture shields located in a main propulsion steam turbine?

The astern element of a main propulsion turbine is usually designed as a/an _______________.

If the main and standby lube oil service pumps of the main engine fail while underway at sea, _______________.

In a pressure type main propulsion turbine lubrication system, the lube oil service pumps normally take suction from th...

The constant pressure governor of a turbine-driven feed pump maintains which of the following pressures at a constant va...

The over speed tripping device installed on an auxiliary turbine is automatically actuated by _______________.

An excess pressure governor would normally be used on a _______________.

As the speed of an oil lubricated ball bearing increases, fluid friction, due to churning, generates heat. This conditi...

Magnets are installed in the main propulsion turbine lube oil strainers to attract metal particles released through wea...

Turbine lube oil suction strainer baskets have _______________.

Fine metallic particles, which may originate from wear or failure of the lube oil service pump internal parts, are preve...

Which of the filters listed will deplete the additives in lubricating oil?

One limiting problem of lube oil filters restricting their use in large lube oil systems is _______________.

Which of the following statements represents the significance of the differential pressure existing between the nozzle b...

Which of the following is used to hold the poppet valves closed in a turbo-generators nozzle control speed regulator? ...

A sequential lift, nozzle valve control bar on a turbo-generator, utilizes which of the following operating principles? ...

What is the FIRST thing that will happen if both the main and standby lube oil pumps fail on a geared main propulsion tu...

Which type of packing is primarily utilized to control steam leakage from the casing of a modern auxiliary turbine? ...

An excess pressure governor is a special type of control device which would normally be found on a _______________.

Carbon ring packing segments are secured in a shaft gland assembly of a steam turbine by means of _______________.

The over speed tripping device installed on an auxiliary turbine is automatically actuated by _______________.

Packing rings installed on auxiliary turbines are generally lubricated by _______________.

When fitting new carbon ring packing on a turbine rotor shaft, carefully filing the ends of the segments will __________...

The most practical method of determining the condition of a shaft bearing while the shaft is in operation is to _______...

Which of the following operational practices is helpful in avoiding the accumulation of condensate in the main reduction...

Which of the listed operational checks should be made "continuously" on the main propulsion reduction gears?

Which immediate action should you take when the temperature of one line shaft bearing increases above its normal operati...

The most practical method of determining the condition of a shaft bearing while the shaft is in operation is to _______...

Which of the following would cause the dowel or locking lip of a split-type, precision insert, main bearing to shear and...

If a line shaft bearing begins to overheat, the shaft speed should be reduced. If overheating persists, you should then...

Precautions to be observed prior to starting a turbine driven cargo pump should include _______________.

The jacking gear on main propulsion turbines can be used to _______________.

The jacking/turning gear mechanism of a main propulsion geared turbine installation is normally connected through mecha...

Which of the devices listed is generally used to engage the main engine turning gear to the high-pressure turbine high-s...

The main propulsion shaft turning gear usually connects to the free end of the high- speed high-pressure pinion because...

The purpose of the sentinel valve installed on a turbine casing is to _______________.

Which of the devices listed is found on an LP main propulsion steam turbine casing?

Large temperature and pressure drops which occur in the first stage of a combination impulse and reaction turbine are c...

Which of the following statements represents the function the nozzle assembly performs in an impulse turbine?

The labyrinth packing ring in an interstage diaphragm of an impulse turbine is prevented from rotating by ______________...

Steam passing through a multi-stage impulse turbine does not impart any appreciable axial thrust to the rotor. This is ...

In an impulse turbine, the fixed blades function to _______________.

The purpose of shroud bands secured to the tips of the turbine blades is to _______________.

Tenon peening is a technique employed by turbine manufacturers to _______________.

Which of the steam losses listed would be associated with a multi-stage impulse turbine rather than a multi-stage reacti...

Shrouding on impulse turbine blading is held in place by _______________.

While a vessel is underway the low-pressure turbine high-speed pinion is damaged. The pinion is then removed from the g...

Because of the pressure drop existing across each diaphragm, the flow of steam between the nozzle diaphragm and the rot...

Nozzle diaphragms are installed in pressure-compounded impulse turbines to _______________.

Lube oil cannot be efficiently filtered if it’s _______________.

Which of the following types of bearing lubrication schemes can carry the highest unit loading?

A common method of preheating main turbine lube oil prior to rolling over the main unit would be to _______________.

In a pressure type main propulsion turbine lubrication system, the lube oil service pumps normally take suction from th...

As lube oil absorbs moisture its dielectric strength can be expected to _______________.

The term 'separation' as used in oil purification refers to the removal of _______________.

According to the illustration, what is the normal function of the component shown? Illustration SE-0010

If contaminated lube oil were allowed to settle undisturbed in a tank, into which layers would the contaminants separate...

When the temperature of the main turbine lubricating oil is lowered, an increase will occur in the _______________.

In order to maintain the required lube oil temperature leaving a lube oil cooler, where an automatic bypass valve is not...

To assure the main propulsion turbine bearings are receiving the proper lube oil supply, you should check the _________...

Which of the following types of bearings are used as line shaft bearings?

Chamfers, located at the parting edges of horizontal split sleeve type bearings, are used to facilitate oil storage and...

The splits located in the halves of main reduction gear bearings are aligned at an angle to the horizontal in order to ...

Which of the following construction methods would apply to the Babbitt lined, split- type, reduction gear bearings? ...

Babbitt is a metal alloy commonly used for lining _______________.

Most main propulsion reduction gear bearings are _______________.

Which of the following methods is used to securely fasten the Babbitt lining of a reduction gear bearing to its shell? ...

The slight wavy appearance of the tips of reduction gear teeth is a result of _______________.

The three wing device in the unit illustrated is maintained in its position by item . Illustration GS-0124

The rotating speed of the tubular bowl centrifuge is more than twice that of the disk- type. The reason for this is ___...

Clean oil leaves the centrifuge illustrated through item 0124

Water removed through centrifugal force in the illustrated unit is displaced from the bowl through . Illustration ...

The main propulsion turbine should be operated with the _______________.

During normal operation of a main propulsion turbine, the lube oil supply temperature to the bearings should be maintai...

Operating a steam turbine propulsion unit at medium-speed, in an area with extremely cold sea water and the main circula...

The most critical period of main turbine operation is during cold start-up, rather than hot shutdown because __________...

After properly lining up the main propulsion turbine for warm up, steam should first be admitted to the rotor through t...

Which of the listed procedures should be followed when raising vacuum on the main propulsion plant prior to getting unde...

Prior to rolling the main turbines in preparation for getting underway, you should _______________.

Before placing the jacking gear in operation on a main turbine unit, you must always insure that _______________.

A constant speed hydraulic governor would more than likely be installed on a _______________.

Rotating flyweights, acting against a spring force, will provide a simple type of _______________.

A steam driven 750 kW turbo-generator has a rated speed of 1200 RPM. The over speed setting for this unit must not exce...

In any governor there is a small range of speed in which no corrective action occurs. This speed range is called the go...

Which steam plant watch operating condition requires priority attention over the other conditions listed?

As shown in the illustration bellows "I" in the gland seal regulator is actuated by _______________. Illustration SE-001...

For the gland seal regulator shown in the illustration, an increase in gland seal pressure will result in _ ...

In a cross compound main propulsion unit, the astern turbine is usually installed at the _______________.

While a vessel is underway, one of the FIRST indications of the failure of the gland leak off exhaust fan motor is ____...

As shown in the illustration, live steam is supplied to the gland seal regulator via _______________. Illustration SE-00...

While making engine room rounds at sea, you observe excessive steam leaking from the forward gland on the high-pressure...

During maneuvering, a vessel has just reached full ahead from a dead slow condition. Which of the following actions ref...

As shown in the illustration, piston "F" in the gland seal regulator is moved upward by _. Illustration SE-0019 ...

Gland sealing steam is used during steam turbine operation to prevent the loss of _______________.

If the gland assembly shown in the illustration is located at the forward end of the high-pressure turbine and the ves...

Guardian valves are installed on main propulsion turbines to _______________.

How is an excess of turbine gland seal steam remedied?

In the event of failure of bellows "I" as shown in the illustration, SE-0019 . Illustration

The intermediate pressure bleed steam system, shown in the illustration, is used to supply steam at approximately ____...

Which of the following systems can normally be supplied by auxiliary exhaust steam?

The primary source of steam to the auxiliary exhaust system is typically supplied directly from _______________.

The greatest single overall loss of efficiency in a marine propulsion steam plant cycle results from _______________.

The purpose of a contaminated steam system is to _______________.

A contaminated steam generator is used to produce saturated vapor from collected _______________.

If live steam is supplied directly to the tank heating coils; the collected drains in the 'clean' section of the contam...

The contaminated drain system normally receives drains that may be exposed to _______________.

Which statement is true concerning drain inspection tanks?

Auxiliary steam at full operating pressure is supplied from the boiler directly to the _______________.

Which of the following statements is true concerning the piping system shown in the illustration? Illustration SG-0005 ...

Which of the piping systems listed is shown in the illustration? Illustration SG-0005

The level of the contaminated drain inspection tank continually decreases when steam is admitted to a fuel oil double b...

If oil is found in the main fuel oil heater steam drain system, which of the actions listed should be taken first?