搜题

【单选题】

In motor-ships, （）, after passing through main and motion bearings and oil cooled pistons, etcis either retained in the bedplate.

A、the fuel oil

B、the lubricating oil

C、the refrigerating oil

D、the hydraulic oil

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更多“In motor-ships, （）, after passing through main and motion bearings and oil cooled pistons, etcis either retained in the bedplate.”相关的问题

第1题

[单选题] The diesel engine consumes considerably less fuel than the steam engine for equal output, （） enables a motor-ship to load more cargo.

A、why B、which C、in which D、on which

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第2题

[] The （）, cage rotor induction motor is the first choice marine motor in most modern ships because of its electrical and mechanical simplicity.

A、A.single phase B、B.two phase C、C.three phase D、D.four phase

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第3题

[] What type of electric motor is most commonly used on board ship?（）

A、A.non-synchronous electric motor B、B.synchronous electric motor C、C.fully enclosed electric motor D、D.watertight electric motor

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第4题

[单选题] In cargo crane, （） for lifting the load.

A、a hoisting motor B、a luffing motor C、a mooring motor D、a slewing motor

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第5题

[单选题] In motor ship, （） is often used to recover some of the heat carried in the exhaust gases from the main engine.

A、an diesel oil heater B、a waste heat boiler C、a fresh water generator D、all the above

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第6题

[] Aboard ship, a grounded field coil in an AC motor can be determined by using a （）.

A、A.portable growler B、B.galvanometer C、C.visual inspection D、D.megohmmeter

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第7题

[单选题] When abandoning ship，after launching the motor lifeboat you should（）.

A、plot a course for the nearest land B、take a vote on which direction you should go C、stay in the immediate area D、go in one direction until fuel runs out

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第8题

[单选题] Which of the following electric motors would be the safest and most reliable to use on the main deck of a vessel in foul weather conditions?（）

A、Sealed motors B、Drip proof motors C、Enclosed motors D、Watertight motors

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第9题

[单选题] Which of the following electric motors would be the safest and most reliable to use on the main deck of a vessel in foul weather conditions?（）

A、Sealed motors B、Drip proof motors C、Enclosed motors D、Watertight motors

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