A.proceeding
B.overloading
C.collision
D.flooding
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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
A.Condenser leakage
B.A shortage of liquid refrigerant
C.Excessive frost on the evaporator
D.Not enough condenser cooling water
A.high discharge pressure
B.frosting of the crankcase
C.high temperature of the overboard water
D.low suction pressure of compressor
A.upper part of the receiver
B.upper part of the condenser
C.down stream end of the cooling coil
D.outlet end of the condenser
A.icing of the automatic controls
B.embrittlement of some parts of the automatic controls
C.sludge in the lubricating oil
D.all of the above
A.low water level
B.high water level
C.excessively high fuel pressure
D.low oil temperature
A.excessive water in the bilges
B.a clogged suction strainer
C.oil in the bilges
D.All of the above
最新试题
An excessive charge of refrigerant in an air-cooled refrigeration system can cause ().
When the steering gear is in operation, you should ().
A salinity indicator is used to determine the ().
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by ().
One cause of high head pressure occurring in a refrigeration system can be ().
Which of the following statements is correct concerning heat transfer?()
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by ().
The general purpose of a heat exchanger is to ().
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will ().
The control mode in which the final control element is moved from one of two flexed positions to the other is known as ().