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单选题
When transmitted by a reduction gear, diesel engine speed is reduced and the torque available for work （）
A
remains the same
B
is reduced
C
is increased
D
is eliminated
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When transmitted by a reduction gear, diesel engine speed is reduced and the torque available for workA.remains the sameB.is reducedC.is increasedD.is eliminated
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medium-speed dieselC
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单选题Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）A
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单选题It is abnormal that when the engine is being turned by the turning gear or by hand, （）.A
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考题
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考题
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fuel control rack had admitted excessive fuelB
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engine has failed to reach its firing speedD
starter pinion and ring gear contact is not correct
考题
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考题
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increase onlyC
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increase slightly then returned to original speed
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decrease as the loadD
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单选题A six-cylinder, two-stroke/cycle diesel engine is fitted with a rotary distributing air starting systemThe speed of the rotating distributor disc is （）A
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the same as engine speedC
twice engine speedD
four times engine speed
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