A.one another
B.the other
C.each other
D.each others
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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
A.dividing walls
B.divided walls
C.dividing liners
D.divided jackets
最新試題
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 （）.
Routine monitoring of a diesel engine should include （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
A thrust bearing is used with a propulsion diesel engine to （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
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 （）.
An automated diesel engine should normally shut down due to （）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.