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1.
Trawlers, whaling ships and purse seiners are in the category of ............................
Doğru Cevap: "B" fishing vessels
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2.
The cylinder cover is tightened against liner with studs. What word can be used instead of the underlined word?
Doğru Cevap: "C" screwed
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3.
Any electric motor can be constructed to be .................... prof.
Doğru Cevap: "C" Explosion
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4.
While making your rounds, you notice the main lube oil temperature is higher than normal. To remedy this situation, you should:
Doğru Cevap: "E" Open the lube oil cooler seawater discharge valve wider
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5.
What word is not related to cargo handling equipment?
Doğru Cevap: "A" filler
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6.
The sequence of events in a cycle within 4 stroke diesel engine is:

1 Thepiston is forced down at BDC (Bottom Dead Center) exhaust valve opens

2 The piston is at the top of its stroke, TDC (Top Dead Center), inlet valve opens, fresh air is drawn

3 Pressure is high in the gases

4 Fuel is injected as the piston reaches TDC, to start the combustion

5 Inlet valve opens, fresh air drawn as the piston moves down

6 At the bottom of the stroke BDC inlet valve closes and the air in cylinder is compressed as the piston rises
Doğru Cevap: "A" 256431
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7.
To remove the impurities and water droplets from oil, .......................... are used on board a ship.
Doğru Cevap: "E" all
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8.
Oily water separators are used to separate oil from bilge water .................. the bilge water is pumped ................
Doğru Cevap: "B" before / overboard
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9.
Having an unstarting compressor must make you think the possibiliy of ..........................
Doğru Cevap: "C" 1 and 2
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10.
The motion of the piston in the cylinder is;
Doğru Cevap: "E" reciprocating
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11.
On most diesel engines, the governor controls the speed by:
Doğru Cevap: "A" Contolling the amount of fuel injected into the cylinders
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12.
What will happen to a small diesel engine that is equipped with an "auto type" thermostat if the bellows develop a hole in it?
Doğru Cevap: "A" The engine will overheat
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13.
Which of the followings is not one of the qualities of the governor?
Doğru Cevap: "C" The supplementary control device on the engine
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14.
_____________is necessary for a controlled combustion.
Doğru Cevap: "E" All above
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15.
Blue smoke coming from the diesel exhaust would indicate:
Doğru Cevap: "B" Burning of lube oil due to possible blow by
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16.
Lubrication oil viscosity in an operation diesel engine can be reduced by
Doğru Cevap: "E" Fuel oil dilution
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17.
If a centrifugal pump is noisy with excessive vibration during its operation, the cause would most likely be due to_____________
Doğru Cevap: "A" Bent shaft
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18.
When the separated oil is burnt by an .............., the application is recorded in Oil Record Book.
Doğru Cevap: "C" incinerator
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19.
................ the fire pumps are at work. What word can be used instead of underlined part?
Doğru Cevap: "C" in operation
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20.
In two stroke engines, if the engine has exhaust valve(s), it is a .................... scavenged engine.
Doğru Cevap: "E" uniflow
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21.
Which one is not treated on board?
Doğru Cevap: "E" ballast water
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22.
"The intake valve is open and exhaust valve is closed. The air is drawn into cylinder while the piston is moving downward" defines;
Doğru Cevap: "C" intake stroke
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23.
An overspeeding diesel engine could best be stopped by:
Doğru Cevap: "E" Blocking the air intake and securing the fuel supply
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24.
The pump type using a piston or plunger to remove the fluid;
Doğru Cevap: "C" reciprocating positive displacement pump
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25.
With a reciprocating pump, failure to deliver liquid may be caused by_____________
Doğru Cevap: "C" Liquid plunger packing worn
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26.
The purpose of the evaporator is to:
Doğru Cevap: "A" Absorb latent heat of vaporization
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27.
The purpose of a heat exchanger is to:
Doğru Cevap: "C" Heat or cool one fluid by means of another fluid
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28.
All refrigerator compressor valves are opened and closed via_____________
Doğru Cevap: "D" A or C
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29.
Prior to port arrival, a diesel alternator_____________, turbo alternator_____________, and all the full away procedure should be done_____________
Doğru Cevap: "A" Will have to be started/will be shut down/in reverse order
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30.
Low head pressure can be caused by_____________
Doğru Cevap: "E" Any of the above
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31.
The second effect on a two pass evaporator receives its steam from:
Doğru Cevap: "B" Vapors from first effect
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32.
The drains from both effects in a low pressure evaporator have their pressures equalized in the:
Doğru Cevap: "C" Flash chamber
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33.
Which factor below is not the cause of vibration and noise in turbines?
Doğru Cevap: "E" Any above
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34.
All boilers have a_____________where the fuel is burned to release the energy, and a_____________is a place where steam and water are seperated.
Doğru Cevap: "B" Combustion chamber/drum
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35.
.............................. protects the pump shafts from erosion, corrosion and wear
Doğru Cevap: "B" Renewable sleeves
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36.
Cavitation, the forming and bursting of vapor filled cavities or bubbles will result in .............................
Doğru Cevap: "E" All above
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37.
What kind of bolts would you use on a saltwater line?
Doğru Cevap: "B" Brass
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38.
If one cylinder was getting more fuel then others the effect will be ...............
Doğru Cevap: "C" Average compression
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39.
A cracked cylinder head on a diesel engine could be indicated by:
Doğru Cevap: "E" Combustion gases venting at the expansion tank
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40.
When operating at high or low speed in the use of nozzles in a turbine, attention and precaution must be taken that........................
Doğru Cevap: "D" All above
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41.
An advantage of aluminum pistons compared to cast iron pistons is:
Doğru Cevap: "E" Better heat conductivity
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42.
Insufficient refrigerant in a refrigeration plant on board a ship may result in:
Doğru Cevap: "D" Low suction pressure
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43.
The removal of contaminating impurities from lubricating oil will ................
Doğru Cevap: "E" 2 and 4
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44.
A propulsion diesel engine is normally shut down by .........................
Doğru Cevap: "C" Securing the fuel supply
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45.
The valve which is always partially open when the evaporator is in operation is the:
Doğru Cevap: "B" Continuous blowdown valve
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46.
Which valve is normally closed when charging an R22 or R134 a refrigeration system through the high side
Doğru Cevap: "E" The liquid line king valve
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47.
The thermostatic expansion valve of R22 or R134 a refrigeration system controls the:
Doğru Cevap: "C" Superheat in the refrigerant leaving the evaporator
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48.
Sediment collects in a tubular purifier:
Doğru Cevap: "C" On sides of bowl
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49.
To produce steam on board a ship, ................. are mostly used.
Doğru Cevap: "C" boilers
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50.
Which of the followings is not one of the qualities of the governor?
Doğru Cevap: "C" The supplementary control device on the engine
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