A.if
B.as
C.unless
D.when
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A.one another
B.the other
C.each other
D.each others
A.lubrication
B.cooling
C.balancing purpose
D.ventilation
A.can be recovered
B.is only supplied to cylinders
C.only feeds the main bearing
D.is a kind of detergent
A.pressure gauges
B.stretch gauges
C.thermometers
D.bridge gauges
A.should be gradually increased
B.should be gradually reduced
C.should be constantly kept
D.should be varied up and down
最新試題
White smoke exhausting from an operating diesel engine may indicate （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
An automated diesel engine should normally shut down due to （）
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
The function of diesel engine piston compression rings is to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.