Main bearings are required to support the crankshaft at each

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[单选题]Main bearings are required to support the crankshaft at each （）.

A. end
B. web
C. pin
D. journal

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[单选题]中间轴承挡油片对油环有（）作用。Ⅰ.径向止动；Ⅱ.轴向定位

A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ+Ⅱ
D. Ⅰ或Ⅱ

[单选题]Factor influencing the position of the interface between the liquid seal and the oil in a purifier is （）.

A. throughput
B. back pressure
C. gravity disc
D. None of the above is wrong

[单选题]Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.

A. wheelhouse control station
B. engine room control station
C. captains office
D. chief engineers office

[单选题]What condition will result in the automatic shutdown of a diesel engine? （）

A. High jacket water pressure
B. High lube oil pressure
C. Low lube oil pressure
D. Excessive turbo charger speed

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