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单选题
With one or more cylinders out of operation, the engine speed must be reduced because（）
A
in such cases, the air supply is no longer optimal, the thermal load will be higher
B
governor hunting will occur
C
torsional vibrations as other mechanical vibrations may occur
D
all of the above are correct
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更多 “单选题With one or more cylinders out of operation, the engine speed must be reduced because（）A in such cases, the air supply is no longer optimal, the thermal load will be higherB governor hunting will occurC torsional vibrations as other mechanical vibrations may occurD all of the above are correct” 相关考题
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