A.be jammed
B.be opened
C.be seated
D.be broken
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A.more water contents
B.contamination with fuel oil
C.higher temperature
D.sufficient cooling of oil mist
A.is always less than 100%
B.is always more than 100%
C.is always equal to 90%
D.is always less than 90%
A.principle
B.principal
C.cause
D.case
A.two-stroke
B.four-stoke
C.long-stroke
D.short-stroke
A.bedplate, connecting rods
B.crankshaft, the connecting rods
C.frames, crossheads
D.crankshaft, the cylinder
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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 ability of the governor to prevent fluctuations in engine speed is termed （）.
Diesel engine control can be obtained by the bridge （）.
Combustion knock occurring in a diesel engine can be caused by （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Lube oil cannot be efficiently filtered if its （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
Routine monitoring of a diesel engine should include （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.