CEL02 - Chief Engineer - Limited (Alt)

In figure "B" of the illustrated circuit, if the resistance of R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms, what is...

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

On the gas turbine shown in the illustration, which of the following best describes the main principle of operation of ...

What is the maximum current allowed to be drawn from the secondary of a 2 kVA step-down transformer with a turns ratio ...

Which of the following statements represents the purpose of boiler sliding feet?

In the marine gas turbine engine shown in the illustration, the HP turbine 1st stage nozzle vanes are cooled by which o...

As shown in figures "B" and "C" of the illustration, what should be the switch position and which test lead terminal ja...

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

In the marine gas turbine engine shown in the illustration, the HP turbine 2nd stage nozzle vanes are cooled by which o...

As shown in figure "D" of the illustrated digital power meter, what type of single-phase load is under test for power m...

Desuperheated steam can be found at the __________.

The struts of the compressor front frame provide passages for all of the following mediums EXCEPT for which of the foll...

While troubleshooting a circuit in an engine room central control console, a resistor is suspected of being faulty. Whi...

The boiler economizer provides additional heat to the __________.

What is the purpose of the GE LM2500 gas turbine enclosure heater?

In what situation would an electrical phase sequence indicator be useful?

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

What type of combustor is used by the GE LM2500 gas turbine engine?

A three-phase, induction-type motor experiences an open in one phase. Which of the listed automatic protective devices ...

Which of the listed refractory materials can be used in an area directly exposed to the highest heat in the furnace?

A gas turbine that has a regenerator between the compression and combustion sections in which exhaust gas heat energy i...

As shown in the illustration, what type of motor and motor starter are featured? Illustration EL-0137

One factor for determining the minimum feedwater inlet temperature to a boiler economizer is the __________.

Which of the following statements about the intercooled-recuperated gas turbine cycle is true? Illustration GT- 0026

Which of the following describes the action when the handle is moved to the "start" position of a drum-type motor contr...

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

For shipboard main propulsion application, how does an intercooled-recuperated (ICR) cycle gas turbine configuration co...

By what means should motor controller contacts be routinely cleaned?

Which of the listed procedures is the most important factor to take into consideration when making repairs to the refra...

Assuming you maintain the same power output, how will a decrease in the compressor inlet air temperature effect a gas t...

Using the catalog selection chart shown in Illustration EL-0180, determine the correct catalog number for a motor start...

Which of the listed mediums should be used when water washing a boiler?

What action should you take if full power vibration limits are exceeded on a gas turbine engine?

If many turns of an operating coil of an AC contactor become short-circuited, in terms of the coil, what is the likely ...

Steam line water hammer can be best prevented by __________.

What is the designed compressor pressure ratio of the gas turbine compressor rotor shown in the illustration? Illustrat...

If the motor of the illustrated circuit fails to start and gives a loud hum when the start button is pushed, what is mo...

A furnace wall in which there are open spaces around the brick as a result of firebrick shrinkage, is __________.

How is the lube oil supplied to each bearing in a gas turbine engine controlled?

If a digital multimeter is set up as shown in figure "A" of the illustration to test an AC contactor coil, what would t...

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

The lube oil scavenge pressure on the gas turbine engine shown in the illustration is sensed by which of the following?...

As shown in the illustration of a cycloconverter for an AC synchronous propulsion motor, what statement is true concern...

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

Your first step in response to a gas turbine engine high lube oil sump temperature alarm would be which of the followin...

What statement is TRUE concerning the Azipod propulsion system?

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

The fuel purge valve on the marine gas turbine shown in the illustration, is opened _________. Illustration GT- 0017

Which of the following statements is true concerning a large polyphase synchronous main propulsion motor as used in an ...

High boiler water level can cause carryover and __________.

The main fuel control module used on a marine gas turbine engine as shown in the illustration, is responsible for manag...

As shown in figures "A", "B", and "C" of the illustration, what is the purpose of the regenerating mode when transition...

The major heat loss in an oil-fired boiler is the heat __________.

A gas turbine engine is experiencing a high rate of corrosion in the hot section of the engine. Which of the following ...

How is the direction of rotation of the main propulsion motor in a modern AC propulsion drive system reversed?

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

On a gas turbine powered vessel equipped with a synchro-self-shifting (SSS) clutch, you are preparing for a power turbi...

How is the speed of the propeller shaft directly coupled to an AC synchronous propulsion motor changed when powered by ...

Oil accumulation in boiler water would __________.

What type of main reduction gear arrangement prevents independent axial and rotational movement of the pinions?

As shown in the illustrated electric propulsion control scheme for a twin-screw vessel, when the two shaft speeds are w...

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

The main thrust bearing directly positions which part(s) of the main reduction gear?

Propulsion AC generators creating 4160 VAC use transformers to provide nominally 120 VAC to the automatic voltage regul...

If a boiler generates saturated steam at 75.3 psig, how much heat is required to change the water into steam if the fee...

In cases where both the pinion and gear teeth of the main reduction gear have been slightly indented by foreign materia...

An AC diesel-electric drive ship with synchronous propulsion motors has the capability for power factor correction. If ...

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

The buildup of contamination in a gas turbine will cause all of the following conditions EXCEPT which of the following?

What type of motor is generally used in DC propulsion drive systems?

In a water-tube boiler, waterside scale formation is caused by __________.

On a gas turbine powered vessel, what is the last step after an off-line water wash?

How is reversal of a DC propulsion motor achieved?

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

You are preparing for a borescope inspection of a gas turbine engine. Prior to the inspection it is recommended that yo...

On DC diesel-electric drives, how is the speed of the DC propulsion motor primarily controlled?

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

When conducting a borescope inspection, you must be aware of all of the following factors EXCEPT which?

What equipment for modern SCR rectified DC propulsion drive systems is usually included in the package?

Fuel oil is transferred to the settling tanks for __________.

Zero reference for the GE LM2500 gas turbine engine is established by the use of which of the following engine componen...

Refer to the two-generator, two-motor, DC diesel-electric drive propulsion system simplified schematic shown in the ill...

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

A reddish-colored oxide usually forms on which of the following metals?

As shown in the illustration of a DC diesel-electric propulsion drive system, what would be the set up contactor config...

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

Which of the following conditions will NOT be the result of a build-up of deposits in a gas turbine compressor?

Due to the operating characteristics of the system, time lag fuses (or dual-element fuses) are necessary for use in wha...

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

Compressor tip clang can be usually attributed to which of the following operating conditions?

As shown in figures "E" and "F" of the pictured high voltage rack mounted circuit breaker, which figure represents the ...

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

You are conducting a borescope inspection of the compressor section of a GE LM2500 gas turbine. In stage four, you see ...

What is the greatest single cause of electrical failures?

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

You are conducting a borescope inspection of the combustor section of a GE LM2500 gas turbine engine. You observe a one...

As shown in the illustration, which of the lighting fixtures represents an incandescent bulb? Illustration EL- 0122

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

While underway on a ship with gas turbine engines, the most likely indication of an engine stall is which of the follow...

What are the operating characteristics of a step-down potential transformer in terms of the secondary load?

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

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

What is the purpose of the device labeled "Man-Auto Sw." in the illustrated switchboard? Illustration EL-0003

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

The gauge glass on a coil-type auxiliary boiler is connected to the __________.

As shown in figure "A" of the illustration, with respect to the common equipment grounding conductor, what statement is...

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

With which of the following types of diesel engine arrangements is a waste heat boiler most likely to produce the maxim...

Why is it necessary to perform periodic testing of correctly rated and properly installed circuit breakers?

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

In general, diesel engine waste heat boiler construction is usually of the _________.

Which of the following procedures should be used to maintain a large electric motor during periods of inactivity?

What must you do before placing the jacking gear in operation on a main turbine unit?

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

In order to definitively determine whether or not fuse "1", shown in the illustration is blown using an on-line testing...

What should you do prior to rolling the main turbines in preparation for getting underway?

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

If a digital multimeter is set up as shown in figure "A" of the illustration, what would be displayed on the screen if ...

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

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

In the lighting distribution circuit shown in the illustrated lighting panel L110 of the illustration, if all circuit b...

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

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

What does section "C" of the circuit shown in the illustration function as? Illustration EL-0085

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

In the water level electrode assembly, shown in the illustration, the feed pump should restart when the level of the wa...

As shown in figure "B" of the illustrated function block for a PLC PID controller, to what input is the actual analog s...

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

Burner ignition failure in an automatically fired auxiliary boiler would be caused by __________.

As shown in figure "A" of the illustration, what type of converter unit is represented? Illustration EL-0240

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

A burner producing black smoke in an automatic auxiliary boiler, would be caused by a/an __________.

As shown in figures "A", "B", and "C" of the illustration, what is the purpose of the differential amplifier segment of...

One boiler of a two-boiler plant has ruptured a tube, and the water cannot be maintained in sight in the gauge glass. A...

Heavy soot accumulations in an auxiliary boiler could be caused by __________.

In process control terminology, continuously variable values which change without distinct increments, such as temperat...

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

If a fire is detected in a main propulsion gas turbine enclosure, which of the following would occur prior to automatic...

As shown in figure "A" of the illustration, what is true concerning the illustrated frequency response curve? Illustrat...

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

Which of the following is the most likely cause for the main propulsion gas turbine engine tripping during start up?

As shown in figure "A" of the illustration, under what conditions will the thyristor conduct? Illustration EL-0154

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

The two basic types of compressors used in gas turbine engines are which of the following?

What does the circuit shown in the illustration represent? Illustration EL-0091

An unusual vibration in the main propulsion turbine unit, accompanied by a rumbling sound in the reduction gear, could ...

Provisions for avoiding the buildup of ice on the intake air surfaces of a gas turbine plant can be found where?

A carbon resistor has the following color bands; band 1 is yellow, band 2 is violet, band 3 is yellow, and band 4 is si...

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

Which of the following is the main advantage of a split-axial compressor case?

An ohmmeter used to test for front-to-back resistance of a PN junction diode should produce roughly what ratio?

What should you do when a turbine bearing shows signs of overheating?

An axial compressor basically consists of which of the following?

When using an ohmmeter to test a semiconductor diode, you find a low resistance in both the forward and reverse bias di...

If steam is admitted to the main propulsion turbine with the jacking gear engaged, which of the following problems can ...

Two functions of the compressor stator vanes include which of the following?

If a digital multimeter is setup as shown in figures "A" and "B" of the illustration, what is the status of the silicon...

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

What is the term used to describe the stationary vanes preceding the first stage of an axial compressor?

If a digital multimeter is set up as shown in figure "B" of the illustration to test a capacitor, what would the displa...

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

Which of the following statements is true concerning axial compressor disk-type rotors?

When troubleshooting a printed circuit board, one technique that can be used is component substitution. Upon what basis...

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

What is a compressor midspan shroud?

What problem with a printed circuit board may resolve itself once a board is removed from its edge card connector and t...

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

In a gas turbine engine, the majority of the energy is added to the working fluid in which of the following components?

What is the most common and reliable type of circuit breaker used for high voltage practice aboard ship?

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

A centrifugal flow gas turbine uses what type of combustion chamber?

For the purposes of shipboard practice, voltages above what threshold would be considered high voltage?

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

The secondary passages on the gas turbine engine fuel nozzles shown in the illustration are designed to open at approxi...

As shown in the illustration, what is the magnetic phase differential in degrees between the reference signal magnetic ...

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

How many fuel igniters would be installed on the marine gas turbine engine shown in the illustration? Illustration GT-0...

In viewing the liquid crystal display for the illustrated depth sounder data display unit, what should be done if the g...

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

A turbine stage is represented by which of the following components and in which order?

As shown in the illustrated adaptive digital steering control system functional block diagram and listed system interfa...

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

In the operation of a marine propulsion gas turbine, kinetic and thermal energy required to drive the main propeller sh...

As shown in the illustrated adaptive digital steering control system functional block diagram and listed system interfa...

Most main propulsion reduction gear bearings are __________.

What method is utilized to allow turbine nozzle blades to withstand high inlet temperatures?

What statement is true concerning random access memory (RAM)?

The component labeled "II", as shown in the illustration, is called the __________. Illustration SE-0013

The turbine nozzle blades convert the combustion gases heat and pressure energy into what form of energy?

If an 8-bit digital to analog converter (DAC) produces an analog output voltage with a range of 10 volts (0-9 volts), w...

The intake and exhaust valves used in a diesel engine are returned to their seats by __________.

HP turbine blades are generally cooled by which of the following methods?

What computer network device maintenance procedure is recommended to be increased in frequency when the equipment is lo...

The part labeled "G", as shown in the illustration, is a __________. Illustration MO-0040

Which of the following designs is the most satisfactory method for attaching turbine blades to the rotor disk?

A very useful Windows utility for discovering or verifying IP addressing information of a network is "ipconfig". How is...

Before any auxiliary diesel engine hydraulic starting system is opened for servicing or repair, you must __________.

Which of the following is an advantage of a single-shaft gas turbine engine compared to a split-shaft gas turbine engine...

When a high voltage system insulation test value is suspect or recorded during an annual survey, a polarization index t...

A four-stroke cycle auxiliary diesel engine fuel cam has shifted from its original position during maintenance. To ensur...

Turbine stages are generally sealed to prevent gas leakage by which of the following methods?

In order for a live-line tester to be used to test and prove dead a high voltage circuit, what must be done to verify t...

On small diesel engines, a noticeable decrease in the time interval between the replacement of the lube filter cartridge...

What type of air seal is used in the combustor and turbine midframe of a gas turbine?

Without the benefit of a specially designed enclosure window for thermographic analysis, what must be done to obtain ac...

A diesel engine may fail to start when being cranked, due to __________.

Before combustion can occur, the combustion air must be delivered to the combustor at a high-pressure and low-velocity. ...

How should the shunt used in an ammeter be connected?

If an auxiliary diesel engine equipped with an electric starting system cranks very slowly after repeated attempts to st...

A centrifugal compressor assembly consists of which of the following?