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
Proper filtering and straining of fuel oil is important because the （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
To determine if the lube oil filter elements need changing, （）.
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?（）
An automated diesel engine should normally shut down due to （）
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.