单项选择题
Poor combustion in a diesel engine can be caused by （）.
A.high compression pressure
B.low intake air temperature
C.low exhaust pressure
D.high scavenge air temperature
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相关考题
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单项选择题
A built-up exhaust valve is one in which （）.
A.the stem and heads are made of different material
B.low-alloy steel is used throughout
C.a replaceable valve disk is welded to the head
D.the self-centering action comes from motion of the valve stem in the guide -
单项选择题
If scavenge box should be hot, （）would occur.
A.seized piston
B.defective atomizer
C.scavenge fire
D.too much LO -
单项选择题
If exhaust temperatures are too high, you should check （）.
A.air cooler
B.turbocharger
C.charge air
D.A+B+C
