A.low voltage trip to trip
B.reverse power trip to trip
C.damage to windings
D.excessive exhaust temperatures
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A.ensure penetration and distribution of the fuel in the combustion chamber
B.ensure the needle valve is flushed clean during each injection
C.prevent combustion gas blowback into the open needle valve
D.prevent reflected pressure waves when the needle valve closes
A.slightly less than atmospheric pressure
B.approximately equal to exhaust manifold pressure at all times
C.that is widely fluctuating constantly
D.decreasing as engine load increases
A.volute pump
B.centrifugal pump
C.diaphragm pump
D.gear pump
A.fuel oil pressure
B.a cam operated follower
C.a spring-loaded pressure plate
D.timing gears keyed to the crankshaft
A.six consecutive starts
B.eight consecutive starts
C.ten consecutive starts
D.twelve consecutive starts
最新試題
A diesel engine piston ring face is in direct contact with the （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Maximum horsepower of a diesel engine is attained （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
White smoke exhausting from an operating diesel engine may indicate （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
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, （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.