单项选择题
If there is water in fuel oil, the revolution of the engine will （）.
A.decrease
B.increase
C.be dismantled
D.be reassembled
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相关考题
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If the sump（）were to rise this would indicate water leakage into the oil an d an investigation into the cause must be made.
A.temperature
B.viscosity
C.lever
D.level -
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If the needle valve in a fuel injection nozzle sticks open （）.
A.no fuel will be delivered through the nozzle
B.the nozzle will overheat and crack
C.time of injection will change
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单项选择题
If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in （）.
A.the crankcase explosion
B.lifting of the cylinder safety valve
C.a scavenge fire
D.opening of the manhole
