A.must to stand inoperative
B.has to stand inoperative
C.must be stood idle
D.will stand idle
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A.repaired
B.replaced
C.replenished
D.repeated
A.viscosity
B.flash point
C.acid value
D.temperature
A.lubricant
B.coolant
C.combustion product
D.second refrigerant
A.differential of crank-webs
B.indicator diagrams
C.lube oil reading out
D.misalignment of crank-throws
A.many thousand times
B.between times
C.one time
D.at times
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In a simple mechanical governor, the （）.
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The main purpose of the piston oil scraper rings is to （）.
In using reduction gears to obtain efficient propeller speeds, （）.
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 （）.
The function of diesel engine piston compression rings is to （）.
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?（）
Routine monitoring of a diesel engine should include （）.
Diesel engine control can be obtained by the bridge （）.