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
第1题
A.charge air receiver
B.scavenging air belt
C.turbine
D.air cooler
第3题
A.prevent piston ring wear
B.shorten the ring break-in period
C.prevent cylinder liner glazing
D.appear slick and glazed
第4题
A.starters
B.pressure switches
C.pressure
D.water
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