單項(xiàng)選擇題A restricted air intake to a diesel engine may result in the engine （）.

A.failing to reach rated speed
B.knocking under maximum load
C.hunting or surging under light load
D.overspeeding and running away


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你可能感興趣的試題

1.單項(xiàng)選擇題Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the （）.

A.cooling water pump
B.nozzle cooling passages
C.cylinder jackets
D.heat exchanger

2.單項(xiàng)選擇題Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.

A.the power stroke
B.the compression stroke
C.low load operation only
D.periods of standby

3.單項(xiàng)選擇題The speed of the camshaft in a two-stroke/cycle diesel engine, running at 950 RPM, is （）.

A.475 RPM
B.950 RPM
C.1900 RPM
D.2400 RPM

4.單項(xiàng)選擇題In a closed diesel engine freshwater cooling system, the amount of coolant flowing through the heat exchanger is controlled by the （）.

A.suction pressure regulator
B.thermostatic bypass valve
C.sea water temperature
D.water level in the expansion tank

5.單項(xiàng)選擇題Mechanical lubricators for diesel engine cylinders are usually small reciprocating pumps which are （）.

A.operated manually once an hour
B.operated until the engine has started
C.placed into operation only at maximum load
D.adjustable to meet lubrication requirements