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1.
"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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2.
If the quantity of oil and particles in separated oily water is ...... 15ppm, it can be drained overboard.
Doğru Cevap: "A" below
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3.
A steam turbine has curved blades. What word can be used as the opposite of the underlined word?
Doğru Cevap: "A" straight
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4.
When purging a refrigeration system, the compressor is .......................
Doğru Cevap: "C" Shut down
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5.
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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6.
Which of the following indicates pump's function instead of its structure?
Doğru Cevap: "A" bilge pump
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7.
"manometer" measures:
Doğru Cevap: "A" Air pressure
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8.
What word has a positive meaning?
Doğru Cevap: "E" overhaul
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9.
All diesel lubricating system must:
Doğru Cevap: "D" Provide a film of oil between the piston and cylinder wall
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10.
When does a two stroke cycle diesel engine produce a power stroke in each cylinder?
Doğru Cevap: "C" Once for every 2 stroke of the piston
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11.
....................... leads excessive lost motion in the valve mechanism of a duplex pump.
Doğru Cevap: "C" The pump to operate sluggishly
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12.
Low head pressure can be caused by ...........
Doğru Cevap: "E" Any of the above
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13.
....................... the fire pumps are at work.
Doğru Cevap: "D" in operation
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14.
The main components of crankshaft assembly are webs, pins and journals. What word can be used instead of the underlined word?
Doğru Cevap: "C" parts
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15.
When the separated oil is burnt by an .................. the application is recorded in Oil Record Book.
Doğru Cevap: "C" incinerator
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16.
The bulb for the TEV (thermostatic expansion valve) is located:
Doğru Cevap: "B" Near the evaporator coil outlet
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17.
As freon leaves the expansion valve:
Doğru Cevap: "A" Pressure decreases volume increases
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18.
Worn bearings, rings, and valves all contribute to:
Doğru Cevap: "C" Hard starting
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19.
What type of gauge reads pressure and vacuum?
Doğru Cevap: "D" Compound
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20.
The TEV (thermostatic expansion valve) is located between:
Doğru Cevap: "D" The solenoid valve and evaporator
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21.
Regardless of the geographical location of on oil spill, you should notify the .................
Doğru Cevap: "D" Coast Guard
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22.
What is the advantage of using a hydraulic starting system for an emergency diesel?
Doğru Cevap: "D" Faster cranking speeds are obtained
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23.
The colis in the evaporator are attached to the header by:
Doğru Cevap: "B" Union type fittings
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24.
An over speeding diesel engine could best be stopped by:
Doğru Cevap: "B" Blocking the air intake and securing the fuel supply
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25.
The low pressure side of a refrigeration system is from the:
Doğru Cevap: "A" Expansion valve to compressor
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26.
The turbocharger of an auxilliary diesel engine is most effected by
Doğru Cevap: "D" Engine load
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27.
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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28.
The dehydrator on a refrigeration plant is used to:
Doğru Cevap: "B" Remove moisture from the system
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29.
The oil level in the compressor should be checked:
Doğru Cevap: "D" For both 2 and 3
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30.
....................... is the first signal of lube oil trouble.
Doğru Cevap: "C" Low outlet temperature from lube oil coolers
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31.
Cylinder liner are generally used on diesel engines because:
Doğru Cevap: "A" Liners may be easily replaced after the cylinder watls show wear
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32.
Minor freon leaks can be detected by the use of a device called:
Doğru Cevap: "D" Halide torch
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33.
What would cause white smoke after you just started the diesel?
Doğru Cevap: "B" Water in the fuel
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34.
In a diesel engine closed cooling system, the flow of fresh water through the fresh water and lube oil coolers is controlled by the:
Doğru Cevap: "C" Automatic temperature regulator
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35.
Most gauges in the fire room are:
Doğru Cevap: "E" Bourdon tube type
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36.
A "pneumercator" measures:
Doğru Cevap: "C" Liquid level
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37.
What would cause white smoke after you just started the diesel?
Doğru Cevap: "B" Water in the fuel
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38.
Under normal operational conditrons, the rudder is hydraullically locked unless ...................
Doğru Cevap: "C" A normal rudder order is given by the control system
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39.
If a bilge pump failed to build up discharge pressure, you should check for:
Doğru Cevap: "B" A clogged suction strainer
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40.
Pre combustion chambers in a diesel engine:
Doğru Cevap: "C" Permit the use of a wide range of fuel in that engine
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41.
What types of lubricating oil systems are used on diesel engines?
Doğru Cevap: "E" Wet sump and dry sump
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42.
Before starting an auxiliary diesel engine, you should:
Doğru Cevap: "C" Check the crankcase oil level
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43.
Another name for the liquid valve is:
Doğru Cevap: "B" King valve
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44.
....................... is the principal hazard to staff when a diesel nozzle tester is in use is.
Doğru Cevap: "D" Blood poisoning
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45.
Fire tube boilers are designed to operate within the conditions of:
Doğru Cevap: "B" Low pressure, temperature
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46.
Static electricity is most often produced by ........................
Doğru Cevap: "D" Friction
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47.
If one fuel oil strainer of a duplex unit becomes clogged while your vessel is steaming at sea, you should first:
Doğru Cevap: "B" Change the strainer over to the clean side
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48.
The usual cause of crankcase explosions in diesel engines is not ............
Doğru Cevap: "A" Heating lubricating oil
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49.
................. is not one of the advantages of the open cooling system.
Doğru Cevap: "C" Obligation of keeping engine cool
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50.
Scavenging means .......................... on an internal combustion engines.
Doğru Cevap: "A" The removal of exhaust gases by blowing in fresh air
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