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What type of stern tube bearing has the least friction ________．
A.Oil-lubricated bearings
B.Lignum vitae
C.Hard rubber
D.Bronze bushings
参考答案
更多 “ What type of stern tube bearing has the least friction ________．A.Oil-lubricated bearingsB.Lignum vitaeC.Hard rubberD.Bronze bushings ” 相关考题
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单选题When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?（）A
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单选题The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）A
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shaft packingD
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garboard strake，at each side of the keelD
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单选题A wobbling tail shaft is an indication of（）.A
shallow waterB
an engine that is misfiringC
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单选题In the piping systems of a vessel，what type of valve gives the least resistance to fluid flow when fully open?（）.A
Globe valveB
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Gate valveD
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单选题What type of stern tube bearing has the least friction（）.A
Oil-lubricated bearingsB
Lignum vitaeC
Hard rubberD
Bronze bushings
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