Water lubricated tailshaft bearings wear,（）

A、the after one is more than forward one

B、the forward one is more than after one

C、the forward one is the same with after one

D、it depends on the type of engine

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更多“Water lubricated tailshaft bearings wear,（）”相关的问题

第1题

[] Oil pressure in the lubrication system is （） the static sea water head to ensure that sea water （） the stem-tube.

A、A.lower than；can lubricate B、B.lower than；can cool C、C.higher than；can enter D、D.higher than ；cannot enter

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第2题

[单选题] （）provides strength and strong space for fule,lubricating oil,fresh water,salt(ballast)water and potable water.

A、The double bottom B、The cofferdam C、The navigating bridge D、The superstructure

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第3题

[单选题] The pistons are cooled by oil supplied from the forced （） system.

A、fresh water B、sea water C、lubrication D、fuel oil

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第4题

[单选题] A centrifugal pump can’t supply water after startingYou should check （）.

A、priming water B、power supply C、packing gland D、bearing lubrication

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第5题

[单选题] In a disk-type lubricating oil purifier, （）

A、the purifier driving gears are lubricated by the reclaimed B、oil as it leaves the bowl all dirt and sludge are automatically discharged with the cooling water C、sealing water must never be supplied until after oil is fed to the unit D、deterioration of the bowl ring gasket will cause the purifier to lose its water seal

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第6题

[] The pistons are cooled by oil supplied from the forced （） system.

A、A.fresh water B、B.sea water C、C.lubrication D、D.fuel oil

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第7题

[单选题] Some （） lying in the starting air lines will give rise to corrosion and can cause water hammer.

A、air B、moisture C、cooling water D、lubricant

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第8题

[单选题] （） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.

A、The fuel oil B、The lube oil C、The sea water D、The fresh water