A.grinding the spare plunger to the barrel
B.replacing the plunger and the barrel
C.highly polishing both the plunger and barrel
D.replacing plunger only
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A.Control the amount of lube oil burned in the combustion chamber
B.Transmit heat from the piston to the cylinder liner
C.Prevent damage to ring groove inserts by acting as a heat dam
D.Dissipate combustion chamber gas pressure by channeling it through the ring gap
A.transfer heat from the cylinder to the piston
B.scrape oil from the sides of the piston
C.seal the combustion space from the crankcases
D.prevent any piston contact with the cylinder liner
A.compression ratio of the engine
B.volume of the engine
C.relationships between pressure and volume during one stroke of the engine
D.relationships between pressure and volume during one cycle of the engine
A.once every crankshaft revolution
B.once every two crankshaft revolutions
C.once every piston stroke
D.twice every piston stoke
A.entirely constant pressure
B.entirely constant temperature
C.a combination of constant volume and constant pressure
D.a combination of constant temperature and constant pressure
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Using a file without a handle may result in （）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
Cold weather starting of a diesel engine may be made easier by（）
If separating effect is not good, which measure should be taken （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish