MODE02 - Assistant MODU Engineer

Which segment of the two-stroke cycle engine diagram shown in the illustration represents the exhaust event? Illustrati...

After measuring the length to which a section of shoring should be cut, you should cut the shoring __________.

The gas that exists in the stratosphere forming a protective shield that helps to protect the environment from the harm...

A four-stroke eight cylinder in-line medium-speed diesel engine has a firing order of 1-5-2-6-8-4-7-3. If No.4 piston i...

The wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from __________.

What is the pressure and condition of the refrigerant entering the receiver of a refrigeration system?

Why must fuel droplets injected into a diesel engine cylinder have adequate penetration?

Which type of respiratory protection is preferable for the repair/investigation personnel in a hydrogen sulfide (H2S) e...

The carbon seal ring of a refrigeration compressor crankshaft mechanical seal is held in position against the stationar...

What effect does proper atomization of fuel have in a diesel engine combustion chamber?

A rigid lifesaving device designed for a group of survivors to hold on to while in the water is defined as a _______.

In a refrigeration system featuring low-side pumpdown prior to the automatic shutdown of the compressor, the temperatur...

What event triggers the end of the steady combustion period in a diesel engine?

In accordance with 46 CFR, life jackets should be stowed in __________.

In a refrigeration system, the bulb for the thermal expansion valve is always located where?

Which of the following is the time between injection and ignition of fuel?

The external flotation bladder on an immersion suit should be inflated __________.

What is the correct color-coding of refrigerant recovery cylinders regardless of the refrigerant contained within?

Barrel face, taper face, grooved, and chrome plated are all types of diesel engine __________.

While retrieving the survival craft, the engine should be stopped __________.

The amount of HCFC-123 in a storage cylinder is measured by what means?

The use of push rods becomes necessary in a diesel engine when __________.

If a life raft should capsize, __________.

In general, the thermal bulb for a thermal expansion valve used in a reciprocating air conditioning system is usually c...

The thrust bearing shown in the illustration has over eight years of ahead running time. Measurements show "i1" is 4 mm...

The blocking open or absence of fire dampers can contribute to __________.

When opening or closing compressor service and line isolation valves on a typical refrigeration system that is fitted w...

Which letter represents the top deck (valve) cover of the engine shown in the illustration? Illustration MO-0122

Which of the gases listed is the poisonous gas most likely to be found in a closed compartment involved in a fire?

For safe storage, the maximum allowable temperature to which refrigerant bottles should be exposed is what temperature?

A diesel engine experiences a sudden loss in speed, accompanied by black exhaust smoke, with the fuel rack at maximum, ...

Which of the conditions listed is necessary for a substance to burn?

Three 12-volt, lead-acid, batteries connected in series will develop how many volts?

The diesel generator set drive engines on your vessel are protected with heavy-duty oil bath air cleaners. The oil with...

To prevent the spread of fire by convection you should __________.

Which of the following motors has a frame configuration for solid base mounting only? Illustration EL-0184

Starting air check valves are held firmly on their seats by __________.

A burning mattress is considered as which of the following classes of fire?

Which of the following statements represents the main difference between an electromagnetic relay and an electromagneti...

The pilot valves in an air pilot starting system for a two-stroke cycle, direct reversing, main propulsion diesel engin...

A magnesium fire would be classified as a __________.

From the information given in the illustration, which of the following statements is correct? Illustration EL-0106

The purpose of an oil mist detector in a main propulsion diesel engine is to warn of __________.

Good housekeeping on a vessel prevents fires by __________.

Which pair of safety disconnect switches shown in the illustration represents the exterior and interior views of a doub...

The TBN value of diesel engine lube oil refers to its ability to __________.

The most likely location for a liquid cargo fire to occur on a tanker would be __________.

Which of the wave shapes shown in the illustration is termed a sinusoidal wave? Illustration EL-0088

The ignition quality of diesel fuel becomes LESS critical as __________.

Which of the following procedures reduces the possibility of an interior ventilation duct fire from rapidly spreading?

What does the symbol in figure "1" shown in the illustration represent? Illustration EL-0065

The unit of measure expressed as centistokes (cSt) is a measure of what fuel property?

A three inch overboard discharge line, located six feet below the waterline, has ruptured and separated from the hull. ...

Of the following, what shipboard system is MOST likely to use the synchronous transmission system featuring a transmitt...

Which of the listed substances can be satisfactorily removed from diesel fuel by centrifuging?

Which of the following is required to be included in the fireman's (emergency) outfit?

What is the functional purpose of the Zener diode "CR1" as shown in section "D" of the regulated DC power supply? Illus...

When running a large, dual fuel, main propulsion diesel engine on heavy fuel, which of the following precautions should...

The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ig...

Referring to the illustrated diagram, what type of HVAC system is shown? Illustration RA-0043

What is the purpose of the "window" installed in the housing of an individual jerk pump?

The component shown in the illustration would be installed in which of the following types of fire detection systems? I...

What is meant by the term emergency bilge suction?

Which of the following statements represents the function of the plunger flange labeled "A" shown in the illustration? ...

When using foam, a "Class B" fire is extinguished by __________.

In order to distribute the side pressures over a wide area of the cylinder walls and liners, which of the listed types ...

Under what condition would valves "4" and "5", as shown in the illustration, be closed? Illustration MO-0077

Which of the following statements is true concerning the Halon 1301 fire extinguishing agent?

As shown in figure "B" in the illustrated block diagram of a central operating system configured for supervisory contro...

When operating the HFO purifiers in "parallel", as shown in the illustration __________. Illustration MO-0077

Which of the following statements is true concerning the fire extinguisher shown in the illustration? Illustration SF-0...

What type of temperature transmitter would be most suitable for measuring diesel engine exhaust and boiler stack temper...

The vessel to which you are assigned has main engines fitted with intake and exhaust systems as shown in the illustrati...

Annual servicing of a hand portable CO2 fire extinguisher includes __________.

According to the illustration, which of the following conditions would most likely cause pump "A" to short cycle? Illus...

An increase in the air inlet manifold pressure of a diesel engine will result in a/an __________.

Which of the listed characteristics applies to a semi-portable CO2 system?

With regard to the number of passes through the tubes of shell-and-tube heat exchangers, what statement is true?

The exhaust system for a turbocharged diesel engine functions to __________.

When the cotton cover of a fire hose becomes oily or greasy, it should be washed with a solution of mild soapy fresh wa...

Energy losses occurring in a hydraulic system are ultimately absorbed by the __________.

The instrument shown in the illustration would be used on a diesel engine to __________. Illustration MO- 0031

The source of power for the CO2 discharge alarm siren is obtained from __________.

For the various sizes of tubing and wall thickness used in a hydraulic system, the inside diameter can be determined if...

Diesel engine closed re-circulating cooling water systems are particularly prone to cavitation corrosion/erosion. Which...

The most effective method of extinguishing a class "A" fire is by __________.

Both the direction of flow and fluid flow rate of a variable displacement radial piston pump are determined by the rela...

What may cause a diesel engine cylinder head to crack?

What is the purpose of opening the doors and portholes in figure 2 of the illustration? Illustration SF-0013

Which of the listed components of a hydraulic system would enable the pump to be temporarily shut down, and yet still p...

The process of scavenging a two-stroke cycle diesel engine serves to __________.

If deck cargo is carried, it should be stowed so that it __________.

What is the operating principle of detergent type lubricating oil that provides the oil with its unique properties?

Which of the turbocharging methods listed directs the exhaust gases to the turbine at fairly uniform velocity and press...

Which extinguishing agent is the best for use on electrical fires?

What is an engine room bilge oily-water separator designed to do?

What prevents the thrust bearing blocks shown in the illustration from rotating within the housing? Illustration MO-012...

The longer an oil fire is permitted to burn, the __________.

What is the normal direction of flow through the device shown in the illustration while operating in the processing mod...

The gear drive, shown in the illustration, can have the backlash determined best by using a __________. Illustration MO...

When fighting a liquefied natural gas fire, you should __________.

Which of the following statements is true regarding mechanical seals?

The vessel to which you are assigned is fitted with a totally pneumatic propulsion control system as shown in the illus...

A tank has been sealed and unventilated for a long period of time. Which of the following statements is true?

If a centrifugal pump were continually operated with the discharge valve closed, the __________.

The pneumatic propulsion control system used on your vessel uses a diaphragm-operated relay valve as shown in the illus...

If flammable vapors have penetrated a gas free space, which of the following actions would be the most hazardous to per...

What type of pump is shown in the illustration? Illustration GS-0144

You are preparing to change the oil of the speed control governor on one of the main propulsion diesel engines on your ...

Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an __________.

In accordance with 33 CFR Subchapter O (Pollution), which type of Marine Sanitation Device (MSD) is used solely for the...

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

An oxygen indicator will detect __________.

Which of the instruments listed is used to measure the gauge of a piece of sheet metal?

The greatest resistance to heat transfer from the fireside to the waterside of a water-tube boiler takes place in the _...

In accordance with 33 CFR Subchapter O (Pollution), a shipboard oil pollution emergency plan is required to be reviewed...

The letters 'NC' in '1/4-20 NC' indicates the bolt is __________.

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

Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explo...

In what electrical temperature transmitting system is the system voltage generated by the magnitude of temperature diff...

On which of the following auxiliary boiler types would soot blowers most likely be fitted?

Which of the petroleum products listed has a flash point below 150°F?

Concerning governor speed droop, what statement is true?

While preparing an engine for departure, the engineer notices water coming from both the waste heat boiler and turbocha...

Bunker "C" is classified as a grade __________.

What operating condition (or conditions) would necessitate shifting from a high sea suction to a low sea suction for a ...

Casing drains may be required on a waste heat boiler gas passage side to __________.

The explosive range of petroleum vapors when mixed with air is __________.

Contact with any energized electrical system conductor is potentially hazardous and precautions should be taken to prev...

The most common cause of scale formation in an auxiliary boiler is __________.

A specific document which identifies a chemical, and lists its physical properties, health hazards, required controls, ...

When reading a pressure that fluctuates severely on a direct-reading pressure gauge, what should be done?

The water in an auxiliary boiler should be tested for chloride content to determine __________.

According to 33 CFR Subchapter O (Pollution), an oceangoing ship of over 400 gross tons must be fitted with a standard d...

Referring to the illustrated motorship freshwater cooling system drawing, which cooling system tanks are MOST likely to...

While proceeding in open waters, one of the main engines on your vessel overheats. The high jacket water temperature al...

Small oil spills on deck can be prevented from contaminating any waters by __________.

Which of the figures shown in the illustration depicts an orthographic projection? Illustration GS-0142

When rolling over a main engine on your vessel prior to starting with the cylinder test valves open to expel any fluids...

In accordance with 33 CFR Subchapter O (Pollution), the Oil Record Book for all U.S. ships ________.

In the illustration, line "C" is a __________. Illustration GS-0006

After a main diesel engine on your vessel has experienced a safety shutdown due to excessive crankcase pressure, why is...

Reserve buoyancy is the __________.

Suppose the illustrated pneumatically operated diaphragm actuated control valve is used to control the fuel oil outlet ...

An auxiliary diesel engine on your vessel has experienced a safety shutdown due to high lubricating oil temperature. Wh...

In the absence of external forces, the center of gravity of a floating vessel is located directly above the __________.

Referring to the illustrated huddling-chamber safety valve, what statement concerning the blowdown adjusting ring (B) i...

If a diesel engine has been stopped because of piston seizure due to severe overheating, the crankcase __________.

Symbol number "3" shown in the illustration represents which of the following? Illustration SF-0022

What is meant by a critical speed for rotating machinery?