A.has to be cooled
B.has heated
C.has preheated
D.has to be preheated
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A.inefficiency
B.oiliness
C.detergency
D.purity
A.reciprocating pump
B.gear pump
C.centrifugal pump
D.vane pump
A.the cylinder
B.the crankshaft
C.the piston
D.the cross-head
A.the exhaust valves
B.the fuel valves
C.indicator cocks
D.the fuel pumps
A.the indicating cock
B.the starting valve
C.air inlet valve
D.the exhaust valve
最新試題
Proper filtering and straining of fuel oil is important because the （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
To determine if the lube oil filter elements need changing, （）.
An automated diesel engine should normally shut down due to （）
What is the function of the thrust bearing?（）
White smoke exhausting from an operating diesel engine may indicate （）.
Lube oil cannot be efficiently filtered if its （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）