failing to reach rated speed
knocking under maximum load
hunting or surging under light load
overspeeding and running away
第1题:
a leaking seal ring
heat transfer from exhaust valves
restricted cooling passages
overheated intake valves
第2题:
water in the fuel
insufficient fuel for combustion
clogged air intake passages
burning lubricating oil
第3题:
What is the function of the after-coolers installed in the diesel engine air intake system?
A.Decrease the air density
B.Increase the exhaust temperature
C.Decrease the lube oil temperature
D.Increase the air density
第4题:
excessively late injection timing for each cylinder
incorrectly adjusted intake valve timing
incorrectly adjusted fuel injector
incorrectly adjusted intake valve clearance
第5题:
cold intake air
excessive compression pressure
excessive cylinder lubrication
a light load
第6题:
exhaust gas pressure
exhaust gas temperature
speed
load
第7题:
high compression pressure
low intake air temperature
low exhaust pressure
high scavenge air temperature
第8题:
natural aspiration
masked intake valves
air cells
scavenging air
第9题:
increase in starting air pressure
increase in lube oil viscosity
compression expansion device
jacket water heater
第10题:
increased engine breathing efficiency
excessive valve lash
excessive lube oil consumption
lower than normal fuel consumption