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
White smoke exhausting from an operating diesel engine may indicate （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Routine monitoring of a diesel engine should include （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
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 （）.
In using reduction gears to obtain efficient propeller speeds, （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.