Gemiadamları Deneme Sınavları

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Denizcilik İngilizcesi - Geçme Notu: 70

Deneme Sınavı - 6 / Cevap Anahtarı

1. Trunk type diesel engine pistons are most effectively cooled when heat is:
1) Radiated through the engine block
2) Mixed with lubrication oil
3) Conducted through the piston crown
4) Transferred to escaping exhaust gases
5) Transferred to water cooled cylinder walls

2. .......................... should be regarded as a special attention after installing a new hydraulic pump.
1) The relief filters should be readjusted
2) The filters and strainers should be checked frequently
3) System pressures should be readjusted
4) The fluid should be drained and renewed
5) All above

3. Which of the following types of valves is used in the bilge manifold?
1) Swing check
2) Nonreturn
3) Angle
4) Globe
5) Butterfly

4. The process of supplying the intake of a diesel engine with air at a pressure greater than atmospheric is called:
1) Engine displacement
2) Scavenging
3) Air injection
4) Supercharging
5) Intercooling

5. The rotating part of a micrometer is the:
1) Anvil
2) Barrel
3) Frame
4) Thimble
5) Cover

6. In accordance with the international requirements, the bilge purifier will separete oily water within the density of ...............
1) < 15 particular per million
2) < 15 particular post million
3) < 15 particular per meter
4) < 15 particular per meter
5) < 15 particular per billion

7. Water in the lube oil system may be detected by: I. sounding lube oil tanks with water sensitive paste; II. observing the purifier discharge.
1) I
2) II
3) I and II
4) Neither I nor II
5) None of above

8. By definition a separator: I. removes solids from the lube oil; II. removes water from the lube oil.
1) I
2) II
3) I and II
4) Neither I nor II
5) Any of above

9. ......................... is the cause of burned exhaust valves.
1) Overloaded cylinder
2) Poor combustion
3) Distortion and faulty reseating maintenance
4) Any above
5) 1 and 2

10. Electrohydraulic steering units are protected from pounding forces (rudder shock) by:
1) Buffer springs
2) Followup mechanism
3) Relief valves
4) Relieving gear
5) Steering pumps

11. When the oil in the seperator is decreasing, which place cannot be leaking?
1) Lower bearing casing
2) Drum shaft
3) Wormgear shaft bearing hosing
4) Middle ball bearing casing
5) The o-ring at shock water entrance to separator into shockwater

12. When a cargo hose joint or coupling starts to leak badly the attempt you should do is to ............................
1) Reduce pumping pressure and wrag leak securely
2) Shut down transfer and make repairs
3) Soak spill with sawdust and reduce pumping pressure
4) Wash deck immediately and close tank tops
5) Carry on transfer

13. In the simple mechanical governor, the:
1) Flyweight centrifugal force is balanced by spring pressure
2) Centrifugal force rotates the ball head
3) Flyweight centrifugal force is balanced by hydraulic pres sure
4) Speeder spring actuates the fuel control rod
5) Hydraulic force rotates the ball head

14. The requirement for portable fire equipment is .........................
1) Annual check
2) Keeping in easily accessible places
3) Hose connections and keeping hoses in good condition
4) All above
5) Before the end of consuming period

15. Cut out system on the aux boiler operates.
1) Low level alarm
2) Low low level alarm
3) High level alarm
4) High pressure alarm
5) Low pressure alarm

16. A fire sprinkling system must be fitted ...........................
1) On all vessels over 5.000 GT
2) In conjunction with the CO² system
3) With a pressure tank of fresh water to the supply system pending the starting of the pump
4) None of the above
5) 1 and 3

17. How are line shaft bearings usually lubricated?
1) A gravity-feed
2) Pressure-feed
3) Oil lubricating disks
4) Oil lubricating rings
5) Oil injectors

18. The function of the exhaust system for a turbocharged diesel engine is to .................
1) Power the aftercoolers
2) Power the turbocharger
3) Reduce the cylinder scavenge effect
4) Cool the turbocharger
5) Any above

19. Before ballasting by gravity .........................
1) Pump in balast for about 10 minutes to wash out bottom lines
2) Start pump before opening sea valves
3) Make sure all proper valves are open
4) All of above
5) 1 and 2

20. In the incident of oil fire ............................
1) Gen water on deck
2) Open steam or CO2 smothering system to cargo holds
3) Close off all ventilation, blowers, doors etc.
4) Open CO2 smothering system to cargo holds
5) All above

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