A.strangers
B.relief valves
C.emergency valves
D.strainers
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A.proceeding
B.overloading
C.collision
D.flooding
A.every oil tanker
B.every ship of 400 tons gross tonnage and above
C.A and B
D.Neither A nor B
A.Non automatic discharge overboard of machinery space bilge water
B.Automatic discharge overboard of machinery space bilge water
C.A and B
D.Neither A nor B
A.open
B.close
C.remain in its position
D.flood the evaporator with refrigerant
A.low water level
B.low oil pressure
C.excessively high fuel pressure
D.an improper air/fuel ratio
最新試題
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
A pressure drop through the refrigerant liquid line may cause （）.
Thermostatic expansion valves can be adjusted for （）.
A salinity indicator is used to determine the （）.
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
A salinity indicator is used to determine the （）.
The major source of chemical contaminants in hydraulic fluid is （）.
Which of the following statements is correct concerning heat transfer?（）