A.cooling water
B.vapor from the boiler
C.starting air
D.hot gases
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A.constant
B.pulse
C.high
D.none of the above
A.piston crown
B.piston groove
C.piston skirt
D.piston ring belt
A.craned out
B.rolled out
C.lifted out
D.turned out
A.aluminum-plated
B.bronze-plated
C.zinc-plated
D.chromium-plated
A.must be provided
B.may be provided
C.have provided
D.can be provided
最新試題
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Diesel engine control can be obtained by the bridge （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
In using reduction gears to obtain efficient propeller speeds, （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
White smoke exhausting from an operating diesel engine may indicate （）.