late ignition
water in the fuel
high compression temperature
starting valve stuck open
第1题：
stop the engine immediately to prevent damage
increase lube oil pressure
slow the engine allowing it to gradually cool
decrease the cooling water it temperature to the water jacket
第2题：
low combustion temperature
a leaking fuel nozzle check valve
late fuel injection
plugged oil-scraper ring hole
第3题：
A smoking exhaust from an operating diesel engine could be caused by( ).
A.low sulfur content in the fuel
B.a loose injector inlet connection
C.late fuel injection
D.high injection pressure
第4题：
performance
horsepower output
fuel consumption
scavenge effect
第5题：
high combustion temperature
high compression pressure
cracked cylinder liner
fuel with a high vanadium content
第6题：
a leaking seal ring
heat transfer from exhaust valves
restricted cooling passages
overheated intake valves
第7题：
reduce heat radiation to the engine room
aid in preventing turbocharger overheating
condense and drain moisture from exhaust gases
dampen exhaust gas pulsations in the manifold
第8题：
A dry-type spark arrestor removes sparks from a diesel engine exhaust by ____.
A.increasing the linear velocity of the exhaust gases
B.changing directions of exhaust gas flow
C.decreasing the temperature of the exhaust gases
D.accelerating the exhaust gas through a reduced size orifice
第9题：
the engine is overloaded
the engine is cold
there is too much lube oil in the cylinders
the turbocharger is fouled
第10题：
high compression pressure
low intake air temperature
low exhaust pressure
high scavenge air temperature