单项选择题X 纠错
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
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单项选择题
A.open
B.close
C.remain in its position
D.flood the evaporator with refrigerant
单项选择题
A.low water level
B.low oil pressure
C.excessively high fuel pressure
D.an improper air/fuel ratio
单项选择题
A.Condenser leakage
B.A shortage of liquid refrigerant
C.Excessive frost on the evaporator
D.Not enough condenser cooling water
单项选择题
A.high discharge pressure
B.frosting of the crankcase
C.high temperature of the overboard water
D.low suction pressure of compressor
单项选择题
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
单项选择题
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
单项选择题
A.low water level
B.high water level
C.excessively high fuel pressure
D.low oil temperature
单项选择题
A.excessive water in the bilges
B.a clogged suction strainer
C.oil in the bilges
D.All of the above
单项选择题
A.in the store room
B.in the cylinder
C.in the scavenge air box
D.in the water box
单项选择题
A.carry off
B.carry down
C.carry on
D.carry over