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Gemiadamları Deneme Sınavları
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edilmez.
Denizcilik İngilizcesi - Geçme Notu: 60
Deneme Sınavı - 7 / Cevap
Anahtarı
1. A device
which will function to bring an engine to a full stop in order
to protect it from damage due to excessively high speed is known
as a/an:
1) Torque limiter
2) Overspeed trip
3) Overspeed governor
4) Load limit governor
5) Any of above
2. Performance of a turbocharged
engine can be improved by:
1) Decreasing valve over lap
2) Preheating
3) Aftercooling intake air
4) Preheating light fuels
5) Heating intake air
3. When the valves are operated
........................... on a diesel engine, they are
actuated by means of cams, pushrods, rocker arms and rollers.
1) Mechanically
2) Hydraulically
3) Pneumatically
4) Electrically
5) Any above
4. The reciprocating motion of a
connecting rod is transformed into a rotary motion by the
...................
1) Crankshaft
2) Crankwebs
3) Crank cheeks
4) Crankpine
5) Piston
5. Lubrication oil viscosity in an
operation diesel engine can be reduced by:
1) Overloading the engine
2) Increasing the amount of lube oil
3) Decreasing the amount of cooling water
4) Combustion by products contamination
5) Fuel oil dilution
6. All details of fuel bunkering,
balast handling, tank cleaning or slop disposal must be entered
in the ..............................
1) Rough log
2) Engine room log
3) Oil record book
4) Smooth log
5) 1 and 2
7. Refrigerant leakage from the
compressor crankcase is prevented by
........................................
1) Using skirt type pistons
2) Using shaftseals
3) Using lantern rings
4) Maintaining a vacuum in the crankcase
5) Any above
8. When oil is heated, it becomes
..................
1) Less viscous
2) Emulsified
3) More viscous
4) Vitrified
5) Not necessarly vitrified
9. Watertube boilers are designed to operate within the
conditions of .........................
1) High pressure, temperature, capacity
2) Low pressure but high capacity
3) Heavy but quick steam raiding process
4) 1 ve 3
5) For the auxiliary purposes
10. In terms of pressure and
temperature, what happens to the primary refrigerant the
compressor?
1) Its pressure and temperature are both lowered
2) Its pressure and temperature are both raised
3) Its pressure and lowered and its temperature is raised
4) Its pressure is raised and its temperature is lowered
5) None of the above
11. The pistonheads in the engine
are manufactured concave and convex shaped in order that
.....................
1) The vessel will be faster
2) It will control the temperature of the engine
3) It will increase oil pressure in the engine
4) It will increase the durability of the piston
5) It will provide a powerful engine
12. Emergency generators can be
stopped via ....................................
1) Ovelvoltage trip
2) Overspeed trip
3) Manual trip
4) Undervoltage
5) Any above
13. The purpose of the low pressure
cutout switch is to:
1) Maintain liquid refrigerant at the suction of the compressor
2) Maintain a preset suction pressure to the compressor
3) Cut out the compressor at a set pressure
4) Maintain compressor in at a preset temperature
5) Cut compressor in and out at a preset pressure
14. The instrument always used in
conjunction with a salinity indicator is the:
1) Pyrometer
2) Thermometer
3) Hygrometer
4) Hydrometer
5) Oxygen meter
15. All of the following are used for low temperature starting,
except:
1) Ether
2) Jacket water heaters
3) Both 1 and 2
4) Air intake heaters
5) Cylinder compression ratio reduced
16. A pyrometer is normally used to measure:
1) Steam pressure
2) Water temperature
3) Draft loss
4) Humidity
5) Gas temperature
17. When maneuvering, you discover heavy smoke coming from the
turbocharger casing. You should:
1) Check the air fitler for dirty
2) Check for an exhaust leak
3) Check the cooling water temperature
4) Notify the bridge and ask to shut the engine down
5) Check fuel oil consumption
18. The successive order of 4 stroke diesel engines:
1) Compression - suction - firing - exhaust
2) Suction - firing - compression - exhaust
3) Suction - compression - exhaust - firing
4) Suction-compression - firing - exhaust
5) Compression - air inlet - firing exhaust
19. Prior to port arrival, a diesel alternator
........................... turbo alternator
............................. and all the full away procedure
should be done ...........................
1) Will have to be started / will be shut down / in reverse
order
2) Does not have to be started / will have to be shut down / in
reverse order
3) Will have to be started / will have to be started / in right
order
4) Will have to be shut down / will have to be started / in
reverse order
5) Doesn't have to be shut down / will have to be shut down / in
right order
20. The drains from both effects in a low pressure evaporator
have their pressures equalized in the:
1) Equalizer tank
2) Drain tank
3) Flash chamber
4) Air ejector condense
5) Fuel oil tank
