海船船员适任证书三管轮模拟试题5(轮机英语)
-
The burning of the fuel adds more heat to the air charge, causing it to expand and force the engine piston to do work on the crankshaftWhat does “it” mean in this sentence?
- A.the burning
- B.the fuel
- C.the air charge
- D.the engine piston
-
Which of the following can be used in hydraulic transmission system?
- A.Hydraulic oil
- B.Animal oil
- C.Light oil
- D.Fuel oil
-
Under normal operating conditions, the rudder is hydraulically locked unless _____.
- A.the manual trick wheel is engaged for steering
- B.the variable stroke pump is off stroke
- C.a rudder order is given by the control system
- D.an electric power system failure occurs at the steering gear
-
Which of the following statements is not true concerning symptom of a fire in the scavenge air box?
- A.an increase in the exhaust temperature of the affected cylinder
- B.the turbocharger may surge
- C.the explosion pressure in all cylinders will rise violently
- D.smoke from the turbocharger air inlet filter will be seen
-
If a diesel engines exhaust temperature is abnormally high, the cause could be______.
- A.too light of a load
- B.injection timing is too early
- C.overloading of the engine
- D.too low of a compression ratio
-
The power factor is a measure of the phase difference between voltage and current and is expressed as the_____ of the phase angle.
- A.sine
- B.cosine
- C.tangent
- D.cotangent
-
Diesel engine mufflers accomplish noise reduction by _____.
- A.reducing exhaust gas velocity
- B.increasing the frequency of gas vibration
- C.the use of long head pipes
- D.the use of zinc electrodes
-
“Stand by engine” means _____.
- A.prepare to stop the engine
- B.assemble an engine on its bedplate
- C.make an engine ready for starting
- D.make an engine run steadily
-
Which of the fire extinguishing agents listed is the safest to use when combating a class C fire?
- A.CO2
- B.Foam
- C.Water fog
- D.Soda acid
-
A fire is considered "under control" when _____.
- A.all hands are at their fire stations
- B.all fire-fighting equipment is at the scene
- C.the fixed systems are activated
- D.the fire is contained and no longer spreading
GMDSS题库试题(1)
GMDSS题库试题(2)
GMDSS题库试题(3)
GMDSS题库试题(4)
GMDSS题库试题(5)
GMDSS试题练习(1)
GMDSS试题练习(2)
GMDSS试题练习(3)
GMDSS试题练习(4)
GMDSS试题练习(5)