A.the inlet valve is open
B.the exhaust valve is open
C.both valves are closed
D.both valves are open
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A.is running
B.stops
C.is repaired
D.lacks of oil
A.variable injection timing
B.variable inlet tonnage
C.vertical incoming tonnage
D.vertical inlet tank
A.gas oil
B.marine diesel oil
C.residue oil
D.crude oil
A.respectable
B.respectful
C.respective
D.respectively
A.pulse
B.exhaust
C.fluctuating
D.hunting
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In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
The highest pressure in a diesel engine cylinder normally occurs （）.
To determine if the lube oil filter elements need changing, （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
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 （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
What is the function of the thrust bearing?（）
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.