In the incident of oil fire ............................

A. Gen water on deck

B. Open steam or CO2 smothering system to cargo holds

C. Close off all ventilation, blowers, doors etc.

D. Open CO2 smothering system to cargo holds

E. All above

Doğru Cevap: "E" All above

Cevabı Göster

Doğru Cevap: "E" All above
Soru Açıklaması

The function of the exhaust system for a turbocharged diesel engine is to .................

B. Power the aftercoolers

C. Power the turbocharger

D. Reduce the cylinder scavenge effect

E. Cool the turbocharger

F. Any above

Doğru Cevap: "C" Power the turbocharger

Cevabı Göster

Doğru Cevap: "C" Power the turbocharger
Soru Açıklaması

A fire sprinkling system must be fitted ...........................

A. On all vessels over 5.000 GT

B. In conjunction with the CO² system

C. With a pressure tank of fresh water to the supply system pending the starting of the pump

D. None of the above

E. 1 and 3

Doğru Cevap: "B" In conjunction with the CO² system

Cevabı Göster

Doğru Cevap: "B" In conjunction with the CO² system
Soru Açıklaması

The requirement for portable fire equipment is .........................

A. Annual check

B. Keeping in easily accessible places

C. Hose connections and keeping hoses in good condition

D. All above

E. Before the end of consuming period

Doğru Cevap: "D" All above

Cevabı Göster

Doğru Cevap: "D" All above
Soru Açıklaması

When a cargo hose joint or coupling starts to leak badly the attempt you should do is to ............................

A. Reduce pumping pressure and wrag leak securely

B. Shut down transfer and make repairs

C. Soak spill with sawdust and reduce pumping pressure

D. Wash deck immediately and close tank tops

E. Carry on transfer

Doğru Cevap: "B" Shut down transfer and make repairs

Cevabı Göster

Doğru Cevap: "B" Shut down transfer and make repairs
Soru Açıklaması

Electrohydraulic steering units are protected from pounding forces (rudder shock) by:

A. Buffer springs

B. Followup mechanism

C. Relief valves

D. Relieving gear

E. Steering pumps

Doğru Cevap: "C" Relief valves

Cevabı Göster

Doğru Cevap: "C" Relief valves
Soru Açıklaması

By definition a separator: I. removes solids from the lube oil; II. removes water from the lube oil.

A. I

B. II

C. I and II

D. Neither I nor II

E. Any of above

Doğru Cevap: "B" II

Cevabı Göster

Doğru Cevap: "B" II
Soru Açıklaması

In accordance with the international requirements, the bilge purifier will separete oily water within the density of ...............

A. < 15 particular per million

B. < 15 particular post million

C. < 15 particular per meter

D. < 15 particular per billion

Doğru Cevap: "A" < 15 particular per million

Cevabı Göster

Doğru Cevap: "A" < 15 particular per million
Soru Açıklaması

The process of supplying the intake of a diesel engine with air at a pressure greater than atmospheric is called:

A. Engine displacement

B. Scavenging

C. Air injection

D. Supercharging

E. Intercooling

Doğru Cevap: "D" Supercharging

Cevabı Göster

Doğru Cevap: "D" Supercharging
Soru Açıklaması

10.

.......................... should be regarded as a special attention after installing a new hydraulic pump.

A. The relief filters should be readjusted

B. The filters and strainers should be checked frequently

C. System pressures should be readjusted

D. The fluid should be drained and renewed

E. All above

Doğru Cevap: "B" The filters and strainers should be checked frequently

Cevabı Göster

Doğru Cevap: "B" The filters and strainers should be checked frequently
Soru Açıklaması

11.

Trunk type diesel engine pistons are most effectively cooled when heat is:

A. Radiated through the engine block

B. Mixed with lubrication oil

C. Conducted through the piston crown

D. Transferred to escaping exhaust gases

E. Transferred to water cooled cylinder walls

Doğru Cevap: "E" Transferred to water cooled cylinder walls

Cevabı Göster

Doğru Cevap: "E" Transferred to water cooled cylinder walls
Soru Açıklaması

12.

Which of the following types of valves is used in the bilge manifold?

A. Swing check

B. Nonreturn

C. Angle

D. Globe

E. Butterfly

Doğru Cevap: "B" Nonreturn

Cevabı Göster

Doğru Cevap: "B" Nonreturn
Soru Açıklaması

13.

The rotating part of a micrometer is the:

A. Anvil

B. Barrel

C. Frame

D. Thimble

E. Cover

Doğru Cevap: "D" Thimble

Cevabı Göster

Doğru Cevap: "D" Thimble
Soru Açıklaması

14.

Water in the lube oil system may be detected by: I. sounding lube oil tanks with water sensitive paste; II. observing the purifier discharge.

A. I

B. II

C. I and II

D. Neither I nor II

E. None of above

Doğru Cevap: "C" I and II

Cevabı Göster

Doğru Cevap: "C" I and II
Soru Açıklaması

15.

......................... is the cause of burned exhaust valves.

A. Overloaded cylinder

B. Poor combustion

C. Distortion and faulty reseating maintenance

D. Any above

E. 1 and 2

Doğru Cevap: "D" Any above

Cevabı Göster

Doğru Cevap: "D" Any above
Soru Açıklaması

16.

When the oil in the seperator is decreasing, which place cannot be leaking?

A. Lower bearing casing

B. Drum shaft

C. Wormgear shaft bearing hosing

D. Middle ball bearing casing

E. The oring at shock water entrance to separator into shockwater

Doğru Cevap: "E" The oring at shock water entrance to separator into shockwater

Cevabı Göster

Doğru Cevap: "E" The oring at shock water entrance to separator into shockwater
Soru Açıklaması

17.

In the simple mechanical governor, the:

A. Flyweight centrifugal force is balanced by spring pressure

B. Centrifugal force rotates the ball head

C. Flyweight centrifugal force is balanced by hydraulic pres sure

D. Speeder spring actuates the fuel control rod

E. Hydraulic force rotates the ball head

Doğru Cevap: "A" Flyweight centrifugal force is balanced by spring pressure

Cevabı Göster

Doğru Cevap: "A" Flyweight centrifugal force is balanced by spring pressure
Soru Açıklaması

18.

Cut out system on the aux boiler operates.

A. Low level alarm

B. Low low level alarm

C. High level alarm

D. High pressure alarm

E. Low pressure alarm

Doğru Cevap: "B" Low low level alarm

Cevabı Göster

Doğru Cevap: "B" Low low level alarm
Soru Açıklaması

19.

How are line shaft bearings usually lubricated?

A. A gravityfeed

B. Pressurefeed

C. Oil lubricating disks

D. Oil lubricating rings

E. Oil injectors

Doğru Cevap: "D" Oil lubricating rings

Cevabı Göster

Doğru Cevap: "D" Oil lubricating rings
Soru Açıklaması

20.

Before ballasting by gravity .........................

A. Pump in balast for about 10 minutes to wash out bottom lines

B. Start pump before opening sea valves

C. Make sure all proper valves are open

D. All of above

E. 1 and 2

Doğru Cevap: "D" All of above

Cevabı Göster

Doğru Cevap: "D" All of above
Soru Açıklaması

21.

The drains from both effects in a low pressure evaporator have their pressures equalized in the:

A. Equalizer tank

B. Drain tank

C. Flash chamber

D. Air ejector condense

E. Fuel oil tank

Doğru Cevap: "C" Flash chamber

Cevabı Göster

Doğru Cevap: "C" Flash chamber
Soru Açıklaması

22.

The successive order of 4 stroke diesel engines:

A. Compression suction firing exhaust

B. Suction firing compression exhaust

C. Suction compression exhaust firing

D. Suction compression firing exhaust

E. Compression air inlet firing exhaust

Doğru Cevap: "D" Suction compression firing exhaust

Cevabı Göster

Doğru Cevap: "D" Suction compression firing exhaust
Soru Açıklaması

23.

A pyrometer is normally used to measure:

A. Steam pressure

B. Water temperature

C. Draft loss

D. Humidity

E. Gas temperature

Doğru Cevap: "E" Gas temperature

Cevabı Göster

Doğru Cevap: "E" Gas temperature
Soru Açıklaması

24.

The instrument always used in conjunction with a salinity indicator is the:

A. Oxygen meter

B. Pyrometer

C. Thermometer

D. Hygrometer

E. Hydrometer

Doğru Cevap: "C" Thermometer

Cevabı Göster

Doğru Cevap: "C" Thermometer
Soru Açıklaması

25.

Emergency generators can be stopped via ....................................

A. Ovelvoltage trip

B. Overspeed trip

C. Manual trip

D. Undervoltage

E. Any above

Doğru Cevap: "C" Manual trip

Cevabı Göster

Doğru Cevap: "C" Manual trip
Soru Açıklaması

26.

In terms of pressure and temperature, what happens to the primary refrigerant the compressor?

A. Its pressure and temperature are both lowered

B. Its pressure and temperature are both raised

C. Its pressure and lowered and its temperature is raised

D. Its pressure is raised and its temperature is lowered

E. None of the above

Doğru Cevap: "B" Its pressure and temperature are both raised

Cevabı Göster

Doğru Cevap: "B" Its pressure and temperature are both raised
Soru Açıklaması

27.

When oil is heated, it becomes ..................

A. Less viscous

B. Emulsified

C. More viscous

D. Vitrified

E. Not necessarly vitrified

Doğru Cevap: "A" Less viscous

Cevabı Göster

Doğru Cevap: "A" Less viscous
Soru Açıklaması

28.

All details of fuel bunkering, balast handling, tank cleaning or slop disposal must be entered in the ..............................

A. Rough log

B. Engine room log

C. Oil record book

D. Smooth log

E. 1 and 2

Doğru Cevap: "C" Oil record book

Cevabı Göster

Doğru Cevap: "C" Oil record book
Soru Açıklaması

29.

The reciprocating motion of a connecting rod is transformed into a rotary motion by the ...................

A. Crankshaft

B. Crankwebs

C. Crank cheeks

D. Crankpine

E. Piston

Doğru Cevap: "A" Crankshaft

Cevabı Göster

Doğru Cevap: "A" Crankshaft
Soru Açıklaması

30.

Performance of a turbocharged engine can be improved by:

A. Decreasing valve over lap

B. Preheating

C. Aftercooling intake air

D. Preheating light fuels

E. Heating intake air

Doğru Cevap: "C" Aftercooling intake air

Cevabı Göster

Doğru Cevap: "C" Aftercooling intake air
Soru Açıklaması

31.

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:

A. Torque limiter

B. Overspeed trip

C. Overspeed governor

D. Load limit governor

E. Any of above

Doğru Cevap: "B" Overspeed trip

Cevabı Göster

Doğru Cevap: "B" Overspeed trip
Soru Açıklaması

32.

When the valves are operated ........................... on a diesel engine, they are actuated by means of cams, pushrods, rocker arms and rollers.

A. Mechanically

B. Hydraulically

C. Pneumatically

D. Electrically

E. Any above

Doğru Cevap: "A" Mechanically

Cevabı Göster

Doğru Cevap: "A" Mechanically
Soru Açıklaması

33.

Lubrication oil viscosity in an operation diesel engine can be reduced by:

A. Overloading the engine

B. Increasing the amount of lube oil

C. Decreasing the amount of cooling water

D. Combustion by products contamination

E. Fuel oil dilution

Doğru Cevap: "E" Fuel oil dilution

Cevabı Göster

Doğru Cevap: "E" Fuel oil dilution
Soru Açıklaması

34.

Refrigerant leakage from the compressor crankcase is prevented by ........................................

A. Using skirt type pistons

B. Using shaftseals

C. Using lantern rings

D. Maintaining a vacuum in the crankcase

E. Any above

Doğru Cevap: "B" Using shaftseals

Cevabı Göster

Doğru Cevap: "B" Using shaftseals
Soru Açıklaması

35.

Watertube boilers are designed to operate within the conditions of .........................

A. High pressure, temperature, capacity

B. Low pressure but high capacity

C. Heavy but quick steam raiding process

D. 1 ve 3

E. For the auxiliary purposes

Doğru Cevap: "A" High pressure, temperature, capacity

Cevabı Göster

Doğru Cevap: "A" High pressure, temperature, capacity
Soru Açıklaması

36.

The pistonheads in the engine are manufactured concave and convex shaped in order that .....................

A. The vessel will be faster

B. It will control the temperature of the engine

C. It will increase oil pressure in the engine

D. It will increase the durability of the piston

E. It will provide a powerful engine

Doğru Cevap: "D" It will increase the durability of the piston

Cevabı Göster

Doğru Cevap: "D" It will increase the durability of the piston
Soru Açıklaması

37.

The purpose of the low pressure cutout switch is to:

A. Maintain liquid refrigerant at the suction of the compressor

B. Maintain a preset suction pressure to the compressor

C. Cut out the compressor at a set pressure

D. Maintain compressor in at a preset temperature

E. Cut compressor in and out at a preset pressure

Doğru Cevap: "E" Cut compressor in and out at a preset pressure

Cevabı Göster

Doğru Cevap: "E" Cut compressor in and out at a preset pressure
Soru Açıklaması

38.

All of the following are used for low temperature starting, except:

A. Ether

B. Jacket water heaters

C. Both 1 and 2

D. Air intake heaters

E. Cylinder compression ratio reduced

Doğru Cevap: "E" Cylinder compression ratio reduced

Cevabı Göster

Doğru Cevap: "E" Cylinder compression ratio reduced
Soru Açıklaması

39.

When maneuvering, you discover heavy smoke coming from the turbocharger casing. You should:

A. Check the air fitler for dirty

B. Check for an exhaust leak

C. Check the cooling water temperature

D. Notify the bridge and ask to shut the engine down

E. Check fuel oil consumption

Doğru Cevap: "D" Notify the bridge and ask to shut the engine down

Cevabı Göster

Doğru Cevap: "D" Notify the bridge and ask to shut the engine down
Soru Açıklaması

40.

Prior to port arrival, a diesel alternator ........................... turbo alternator ............................. and all the full away procedure should be done ...........................

A. Will have to be started / will be shut down / in reverse order

B. Does not have to be started / will have to be shut down / in reverse order

C. Will have to be started / will have to be started / in right order

D. Will have to be shut down / will have to be started / in reverse order

E. Doesn't have to be shut down / will have to be shut down / in right order

Doğru Cevap: "A" Will have to be started / will be shut down / in reverse order

Cevabı Göster

Doğru Cevap: "A" Will have to be started / will be shut down / in reverse order
Soru Açıklaması

41.

Emulsification of oil will ocur when mixed with:

A. Air

B. Water

C. Black oil

D. Ice cream

E. Oxygen

Doğru Cevap: "B" Water

Cevabı Göster

Doğru Cevap: "B" Water
Soru Açıklaması

42.

.................... is hardly the cause of a smoky diesel engine exhaust.

A. Overload

B. Malfunctioned injector

C. Choked exhaust pipe

D. Inappropriate amount of fuel

E. Appropriate amount of fuel

Doğru Cevap: "D" Inappropriate amount of fuel

Cevabı Göster

Doğru Cevap: "D" Inappropriate amount of fuel
Soru Açıklaması

43.

The upper section of a piston is called the:

A. Land

B. Skirt

C. Crown

D. Plate

E. Disk

Doğru Cevap: "C" Crown

Cevabı Göster

Doğru Cevap: "C" Crown
Soru Açıklaması

44.

................................... is the first to do when securing an AC generator.

A. Tripping the generator circuit breaker

B. Switching the voltage regulator to manual

C. Decreasing the field excitation to minumum

D. Reducing the load on the unit

E. Increasing the load on the unit

Doğru Cevap: "D" Reducing the load on the unit

Cevabı Göster

Doğru Cevap: "D" Reducing the load on the unit
Soru Açıklaması

45.

The heat which is used to change a liquid to a gas or vapor is called latent heat of .......................

A. Absorption

B. Fusion

C. Liquid

D. Evaporization

E. Fission

Doğru Cevap: "D" Evaporization

Cevabı Göster

Doğru Cevap: "D" Evaporization
Soru Açıklaması

46.

The lubricant is expected to have the qualities of ............................

A. Preventing metalto metal contact

B. Causing metal to metal contact

C. Decrease friction

D. Decrease friction wear

E. All expect

Doğru Cevap: "E" All expect

Cevabı Göster

Doğru Cevap: "E" All expect
Soru Açıklaması

47.

When starting ballasting .......... valve should be opened last.

A. Seacock

B. Pump discharge valve

C. Deck filling valve

D. Tank suction valve

E. None above

Doğru Cevap: "E" None above

Cevabı Göster

Doğru Cevap: "E" None above
Soru Açıklaması

48.

The system used for breaking scale from the evaporator coil while the evaporator is in operation is called:

A. Recirculating

B. Blowing down

C. Cracking off

D. Dumping

E. None of above

Doğru Cevap: "C" Cracking off

Cevabı Göster

Doğru Cevap: "C" Cracking off
Soru Açıklaması

49.

As Freon leaves the expansion valve ..........................

A. Pressure increases Volume increases

B. Pressure decreases Volume increases

C. Pressure decreases Volume decreases

D. Pressure increases Volume decreases

E. Pressure increases No change in the volume

Doğru Cevap: "B" Pressure decreases Volume increases

Cevabı Göster

Doğru Cevap: "B" Pressure decreases Volume increases
Soru Açıklaması

50.

In case of burning of radio equipments on the bridge the extinguishers should be the same as the ones to be used in......................... fires, keeping in mind that the fire will turn out to be a ......................... fire when starting firefighting takes long.

A. Class E / Class A

B. Class E / Class B

C. Class B / Class A

D. Class C / CIass A

E. Class C / Class E

Doğru Cevap: "A" Class E / Class A

Cevabı Göster

Doğru Cevap: "A" Class E / Class A
Soru Açıklaması

TEST BİTTİ.
CEVAPLARINIZI KONTROL EDİNİZ.