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单选题
The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at（）
A
one half crankshaft speed in a two-stroke cycle diesel engine
B
crankshaft speed in a two-stroke cycle diesel engine
C
two times crankshaft speed in a two-stroke cycle diesel engine
D
one-fourth times crankshaft speed in a four-stroke cycle diesel engine
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更多 “单选题The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at（）A one half crankshaft speed in a two-stroke cycle diesel engineB crankshaft speed in a two-stroke cycle diesel engineC two times crankshaft speed in a two-stroke cycle diesel engineD one-fourth times crankshaft speed in a four-stroke cycle diesel engine” 相关考题
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考题
单选题What is the speed of the crankshaft in a four-stroke/cycle engine when the camshaft is turning at 750 rpm?（）A
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单选题The reversing cams of some four-stroke/cycle diesel engines are brought into position by （）A
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考题
单选题The arrangement and shape of the cams on a diesel engine camshaft directly control which of the listed groups of operating conditions?（）A
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考题
单选题The flywheel reduces speed fluctuations by （）A
maintaining a constant rack settingB
storing kinetic energyC
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考题
单选题If a four-stroke/cycle diesel engine is running at 1550 RPM, the speed of the camshaft will be（）.A
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考题
单选题There is an injection pump for each cylinder, which is usually operated once every cycle by （） on the camshaft.A
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a camC
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考题
单选题When the direction handle of telegraph is moved, the relative position of camshaft and crankshaft will be（）A
changed accordinglyB
unchangedC
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考题
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mercurial barometerB
aneroid barometerC
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thermograph
考题
单选题（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.A
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考题
单选题The camshaft on a four-stroke/cycle diesel engine provides a means to operate the （）.A
fuel injectorsB
exhaust valvesC
intake valvesD
all of the above
考题
单选题In a four-stroke/cycle diesel engine, the camshaft rotates at （）A
twice the crankshaft speedB
half the crankshaft speedC
the same speed as that of the crankshaftD
a speed independent of that of the crankshaft
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