A.hour
B.day
C.week
D.month
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A.Engine is hard to start
B.Engine misses
C.Surges at governed RPM
D.Coolant temperature is too low
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
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
最新試題
White smoke exhausting from an operating diesel engine may indicate （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
The minimum speed an engine must attain before ignition can occur depends upon （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
The main purpose of the piston oil scraper rings is to （）.
In a simple mechanical governor, the （）.