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
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
The function of diesel engine piston compression rings is to （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
What is the function of the thrust bearing?（）
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
In using reduction gears to obtain efficient propeller speeds, （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
Diesel engine control can be obtained by the bridge （）.