A.water
B.babbitt
C.iron or steel
D.acids
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A.Impurities
B.Lube oil
C.Gasoline
D.Diesel fuel
A.moisture
B.dirt
C.acid
D.air
A.relieve excess fuel oil pressure during the “off” fire cycle
B.admit water to the dry pipe
C.throttle the forced draft fan output for proper combustion
D.reduce excess steam pressure in the boiler
A.60 to75
B.80 to 95
C.100 to 115
D.120 to 135
A.heat conduction into the injected fuel oil
B.heat conduction into the water jacket wall
C.water circulation through passages in the holder
D.fuel oil circulation through passages in the holder
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Proper filtering and straining of fuel oil is important because the （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
In a simple mechanical governor, the （）.
A thrust bearing is used with a propulsion diesel engine to （）.
A diesel engine piston ring face is in direct contact with the （）.
The main purpose of the piston oil scraper rings is to （）.
To determine if the lube oil filter elements need changing, （）.
Diesel engine control can be obtained by the bridge （）.
Lube oil cannot be efficiently filtered if its （）.