A.regulating the level of corrosion inhibitor in the primary cooling system
B.the level of the freshwater expansion tank
C.varying the engine load to meet temperature requirements
D.the operation of the thermostatic valve
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A.oil spray
B.oil bath
C.oil control rings
D.drilled passage through the camshaft
A.twice the crankshaft speed
B.half the crankshaft speed
C.the same speed as that of the crankshaft
D.a speed independent of that of the crankshaft
A.failing to reach rated speed
B.knocking under maximum load
C.hunting or surging under light load
D.overspeeding and running away
A.cooling water pump
B.nozzle cooling passages
C.cylinder jackets
D.heat exchanger
A.the power stroke
B.the compression stroke
C.low load operation only
D.periods of standby
最新試題
A diesel engine piston ring face is in direct contact with the （）.
The function of diesel engine piston compression rings is to （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
The main purpose of the piston oil scraper rings is to （）.
In a simple mechanical governor, the （）.
To determine if the lube oil filter elements need changing, （）.
Routine monitoring of a diesel engine should include （）.
What is the function of the thrust bearing?（）
Maximum horsepower of a diesel engine is attained （）.
A thrust bearing is used with a propulsion diesel engine to （）.