单项选择题
In a bypass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the （）.
A.lube oil pump suction line
B.lube oil pump discharge line
C.bottom of the lube oil sump
D.outlet from the lube oil header
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相关考题
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Theoretical perfect combustion in a diesel engine yields by-products of （）.
A.aldehydes and carbon dioxide
B.water vapor and carbon monoxide
C.nitrogen and carbon monoxide
D.water vapor and carbon dioxide -
单项选择题
Which of the following devices is a common basic element with nearly all mechanical governors?（）
A.Power piston
B.Control rack
C.Weights acted on by centrifugal force
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单项选择题
A change in the degree of fuel atomization in a diesel engine would most greatly affect （）.
A.air turbulence
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C.fuel spray angle
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