soft water pump was not secured along with the engine
jacket water thermostat has failed
cylinder liner may be cracked
raw water pump is over-speeding just prior to engine shutdown
第1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2题：
a broken shaft on the freshwater pump
an excessive accumulation of scale exchanger
an incorrect thermostatic element operating range
lube oil in the cooling water
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：
prevent any lubricant from reaching
prevent excessive lubrication from reaching the combustion space
Provide metal-to-metal contact to seal the cylinder against blow-by
assure a positive means of scraping carbon accumulation from the cylinder
第5题：
Excessive cylinder liner
water in the fuel system
Cracked cylinder liner
Leaking lube oil cooler
第6题：
notify the duty officer, reduce the engine speed, take some measures to remove failures
notify the duty officer and stop the engine immediately, find the cause and remove failures
notify the C/E
notify the captain
第7题：
a cracked cylinder liner
excessive water in the fuel
a leaking intercooler
excessive moisture in the scavenge air
第8题：
If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in _____.
A.the crankcase explosion
B.lifting of the cylinder safety valve
C.a scavenge fire
D.opening of the manhole
第9题：
to inspect if the cylinder has the water leakage
to expel out the residual water/gas/oil from the cylinder
to check if fuel supply is normal
A and B
第10题：
Increase the cooling water flow to the engine
Secure or reduce fuel to that cylinder
Screw down on the pressure adjusting spring to decrease to decrease popping pressure
Readjust the injection timing