DENİZCİLİK İNGİLİZCESİ
1. . . . . . . . . . . . . . . . . . . is the first signal of lube- oil trouble.
A) Lube oil gravity tank low level alarm goes off
B) Low lube oil sump level
C) Low outlet temperature from lube oil coolers
D) No flow throught bull’s eye from gravity tank observed
E) A and B
2. The usual cause of crankcase explosions in diesel engines is not . . . . . . . . . . . . . . . .
A) Heating lubricating oil
B) Overheating lubricating oil
C) Poor condition of the cylinder
D) Crank shaft bearing failures maintenance
E) Any above
3. . . . . . . . . . . . . . . . is not one of the advantages of the open cooling system.
A) Being the simplest system
B) No requirement of heat exchange
C) Obligation of keeping engine cool
D) The requirement of only one water circulating pump
E) The requirement of 2 water circulating pumps
4. Refrigerant leakage from the compressor crankcase is prevented by . . . . . . . . . . . . . .
A) Using skirt type pistons
B) Using shaft seals
C) Using lantern rings
D) Maintaining a vacuum in the crankcase
E) Any above
5. The TEV (thermostatic expansion valve) is located between . . . . . . . . . . . . . . . .
A) The receiver and the king valve
B) The king valve and solenoid
C) Both A and B
D) The solenoid valve and evaporator
E) The charging valve and solenoid
6. Another name for the liquid valve is:
A) Master valve
B) King valve
C) Freon valve
D) Shut off valve
E) None of above
7. What is the high pressure side of the refrigeration system?
A) Compressor to condenser
B) Evaporator to compressor
C) Expansion valve to evaporator
D) Compressor to expansion valve
E) Evaporator
8. The low pressure side of a refrigeration system is from the . . . . . . . . . . . . . . . . .
A) Expansion valve to compressor
B) Compressor to expansion valve
C) Expansion valve to the evaporator
D) Condenser to the expansion valve
E) None of the above
9. 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
10. The bulb for the TEV (thermostatic expansion valve) is located . . . . . . . . . . . . . . . . . . . .
A) In the middle of the evaporator coils
B) Near the evaporator coil outlet
C) Near the evaporator coil inlet
D) On the bottom row of the evaporator
E) None of the above
11. The solenoid valve can be typed as a . . . . . . . . . . . . . . . . . . . . . .
A) Thermal valve
B) Magnetic stop valve
C) Bellows valve
D) Bimetallic valve
E) Both C and D
12. What is the advantage of using a hydraulic starting system for an emergency diesel?
A) The system is inexpensive
B) High pressure lines are not required
C) It is compact
D) Faster cranking speeds are obtained
E) None of the above
13. Worn bearings, rings, and valves all contribute to . . . . . . . . . . . . . . . .
A) Poor reversal
B) Quiet operation
C) Hard starting
D) High pressure
E) None of the above
14. What would cause white smoke after you just started the diesel?
A) Too week battery power
B) Water in the fuel
C) Water in the gas
D) Water in the oil
E) Salt water in cooling water
15. Pre combustion chambers in a diesel engine . . . . . . . . . . . . . . . . . . . . .
A) Require that each cylinder use two spray nozzles
B) Require the use of flat crowned pistons to obtain turbulence
C) Permit the use of a wide range of fuel in that engine
D) Contain all of the air charge at the end of the compression stroke
E) Require that each cylinder use more than four spray nozzles
16. Regardless of the geographical location of on oil spill, you should notify the . . . . . . . . . . . . .
A) Local police department
B) Local fire department
C) Corps of Engineers
D) Coast Guard
E) The pilot
17. . . . . . . . . . . . . . . . is the principal hazard to staff when a diesel nozzle tester is in use is
A) Electrical shock
B) Toxic fumes
C) Explosion
D) Blood poisoning
E) Loosing consciousness
18. In a diesel engine closed cooling system, the flow of fresh water through the fresh water and lube oil coolers is controlled by the . . . . . . . . . . . . . . . .
A) Speed of the engine
B) Speed of the pump impeller
C) Automatic temperature regulator
D) Suction pressure regulator
E) Governor
19. What type of gauge reads pressure and vacuum?
A) Duplex
B) Simplex
C) Both B and C
D) Compound
E) Bourdon tube
20. Most gauges in the fire room are:
A) Manometers
B) Thermocouples
C) Dual purpose
D) Thermometers
E) Bourdon tube – type