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
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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
A.cylinder heads
B.exhaust valves
C.scavenging air
D.injectors
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White smoke exhausting from an operating diesel engine may indicate （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Diesel engine control can be obtained by the bridge （）.
An automated diesel engine should normally shut down due to （）
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
A thrust bearing is used with a propulsion diesel engine to （）.
Routine monitoring of a diesel engine should include （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Proper filtering and straining of fuel oil is important because the （）.