搜题

【单选题】

Expansion tank should be used to remove （） from cooling water.

A、scale

B、sludge

C、chemicals

D、air

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更多“Expansion tank should be used to remove （） from cooling water.”相关的问题

第1题

[单选题] An alarm device inserted between the deaerating tank and the expansion tank can notify the on-watching crew that （）

A、the expansion tank is lack of water B、the expansion tank is over flowing C、there is something wrong with the cooling system D、there is something wrong with the engine

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第2题

[] The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the （）.

A、A.fresh water expansion tank B、B.sea water expansion tank C、C.thermostatic expansion valve D、D.jacket water cooler accumulator

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第3题

[单选题] There is （） in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals addition.

A、a setting tank B、a service tank C、a head tank D、an expansion joint

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第4题

[单选题] （） allows for expansion and water make up in the water cooling system.

A、A top tank B、A head tank C、A head valve D、A drain tank

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第5题

[] In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.

A、A.a service tank B、B.a settling tank C、C.an expansion tank D、D.a double bottom tank

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第6题

[单选题] According to the regulations，normally，manholes in LFG tanks are located（）.

A、in the ends of each tank B、in the expansion trunk of each tank C、above the weather deck D、there are no requirements in the regulation

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第7题

[单选题] （）is used in typical marine pattern self-contained unit.

A、a water cooled condenser B、a slop tank C、a expansion tank D、a centrifugal pump

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第8题

[] The main propulsion diesel engine jacket water temperature rises above normal, with the raw water sea suction and the expansion tank water level being normalWhich of the following problems is most likely the cause?（）

A、A.Faulty thermostatic bypass valve B、B.Eroded zinc pencils in the heat exchanger C、C.Steam formation in the expansion tank D、D.Excessive leakage from jacket water pump seal

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第9题

[单选题] The air compressor pumps air to the （）.

A、expansion tank B、combustion chamber C、air receiver D、evaporator

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