a low load on that cylinder
sluggish piston ring action
excessive piston crown cooling
excessive clearance of piston pin
第1题：
Persistent knocking in one cylinder of an eight cylinder diesel engine would MOST likely be caused by______.
A.using fuel oil with low cetane number
B.a badly worn piston pin
C.a loose flywheel key
D.a loose bed plate bolt
第2题：
Excessive cylinder liner
water in the fuel system
Cracked cylinder liner
Leaking lube oil cooler
第3题：
Which of the following conditions could contribute to the cracking of a diesel engine cylinder head?
A.Leaking seal ring
B.Insufficient heat transfer from the exhaust valves
C.Blocked cooling water passages to the head
D.Excessive scavenging air provided to the engine
第4题：
feel the high pressure fuel line
check the cylinder exhausts for white smoke frequently
check the cylinder exhaust temperature
isolate each cylinder and inspect the injector
第5题：
crankcase
piston
cylinder liner
crank cheek
第6题：
a cracked cylinder liner
excessive water in the fuel
a leaking intercooler
excessive moisture in the scavenge air
第7题：
liquid in the cylinder
low compression in the cylinder
high exhaust temperature
poor fuel penetration
第8题：
One cylinder of a diesel engine is persistently knocking and does not cease(停止) when the fuel supply to that cylinder is secured.Which of the following problems may be the cause?
A.Low loading of the cylinder
B.Excessive cooling of that piston
C.Sluggish ring action on the piston
D.A mechanical defect in a working part
第9题：
Leaking seal ring
Insufficient heat transfer from the exhaust valves
Block cooling water passages to the head
Excessive scavenging air provided to the engine
第10题：
check cylinder lubrication prior to starting engine
connect exhaust gas analyzers to determine engine efficiency
pressure test cylinder heads to check for leaks
remove moisture accumulations from cylinder prior to starting