A.constant
B.pulse
C.high
D.none of the above
您可能感興趣的試卷
你可能感興趣的試題
A.piston crown
B.piston groove
C.piston skirt
D.piston ring belt
A.craned out
B.rolled out
C.lifted out
D.turned out
A.aluminum-plated
B.bronze-plated
C.zinc-plated
D.chromium-plated
A.must be provided
B.may be provided
C.have provided
D.can be provided
A.has to be cooled
B.has heated
C.has preheated
D.has to be preheated
最新試題
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
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 （）.
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?（）
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
In a simple mechanical governor, the （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
To determine if the lube oil filter elements need changing, （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.