單項選擇題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


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題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

2.單項選擇題If scavenge box should be hot, ()would occur.

A.seized piston
B.defective atomizer
C.scavenge fire
D.too much LO

3.單項選擇題If exhaust temperatures are too high, you should check ().

A.air cooler
B.turbocharger
C.charge air
D.A+B+C

4.單項選擇題Defective timing gear in a diesel engine may lead to ().

A.smoky exhaust
B.starting failure
C.overload
D.over speed

5.單項選擇題Defective governor in a diesel engine may lead to ().

A.smoky exhaust
B.starting failure
C.ignition relay
D.over speed