The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by （）

A、regulating the level of corrosion inhibitor in the primary cooling system

B、the level of the freshwater expansion tank

C、varying the engine load to meet temperature requirements

D、the operation of the thermostatic valve

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更多“The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by （）”相关的问题

第1题

[单选题] In a diesel engine jacket water cooler, with seawater cooling the fresh water, the（）

A、sea water temperature must never be warmer than 40℃ B、jacket water pressure should always be greater than the sea water pressure C、jacket water temperature must always be less than 60℃ D、jacket water pressure must always be less than the sea water pressure

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第2题

[单选题] Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the （）.

A、cooling water pump B、nozzle cooling passages C、cylinder jackets D、heat exchanger

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第3题

[单选题] The three conditions which cause engine shutdown are overspeed，low lube oil pressure，and（）.

A、High lube oil pressure B、High jacket water pressure C、High jacket water temperature D、Low jacket water pressure

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第4题

[单选题] The space between cylinder liner and jacket is called （）.

A、the cooling water B、the circulating water C、the cooler D、the cooling water space

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第5题

[单选题] If the jacket water temperature of an operating diesel engine suddenly rises above normal, the cause can be attributed to （）.

A、an overfilled expansion tank B、excess chromate treatment of the jacket water C、a clogged raw water sea suction D、cavitation erosion of the heat exchanger tubes

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第6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7题

[单选题] The cooling water jacket is common to all the cylinders but there are often （） to ensure that each cylinder receives the right amount and flow of water.

A、dividing walls B、divided walls C、dividing liners D、divided jackets

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第8题

[单选题] The cooling liquid used for the cylinder may be referred to as （）.

A、jacket water B、make-up water C、boiler water D、flushing water

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第9题

[单选题] The cylinder liner forming the cylinder wall and the inside of the water jacket is called a（）

A、dry liner B、wet liner C、jacket liner D、corrugated liner