A.of the diaphragm type
B.of the centrifugal type
C.of the positive displacement type
D.independently driven by electric motors
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A.intake stroke
B.exhaust stroke
C.power stroke
D.compression stroke
A.excessive crankcase pressure
B.excessive lube oil temperature
C.contamination of the lube oil by water
D.contamination of the cooling water by lube oil
A.dissolved oxygen
B.chlorides
C.sludge
D.dissolved nitrogen
A.boiler water level is low
B.feedwater is too hot
C.boiler steam demand is low
D.feedwater is too cold
A.intake valves
B.carburetor
C.exhaust ports
D.injector nozzles
最新試題
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
A thrust bearing is used with a propulsion diesel engine to （）.
In using reduction gears to obtain efficient propeller speeds, （）.
To determine if the lube oil filter elements need changing, （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）