A donkey boiler is （）.

A、one to supply steam to the main propulsion turbine

B、an auxiliary boiler

C、A and B

D、neither A nor B

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更多“A donkey boiler is （）.”相关的问题

第1题

[单选题] A （） boiler is an auxiliary boiler sometimes included in a steamships installation for supplying steam to auxiliaries in port.

A、monkey B、donkey C、waste heat D、main

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第2题

[单选题] At normal sea going, we use （） instead of donkey boiler.

A、a heater B、a pre-heater C、an exhaust gas boiler D、the coal burning boiler

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第3题

[单选题] A feed pump for an auxiliary boiler might lose suction if the （）.

A、boiler water level is low B、feedwater is too hot C、boiler steam demand is low D、feedwater is too cold

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第4题

[单选题] The donkey boiler may be given a bottom blow （）

A、to raise water level B、only while making steam C、to remove scum D、when fire are secured

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第5题

[单选题] When steam is being raised on a boiler, the water level will normally （）.

A、drop as the boiler warms up B、rise as the boiler warms up C、remain unchanged until the boiler is hot enough D、rise and fall with the steam demand

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第6题

[单选题] Which of the following statements concerning the water tube and fire tube boilers is not true?（）

A、natural circulation of the water in the water tube boiler is better than that in the fire tube boiler B、for the same output the water tube boiler will carry less mass of water compared with the fire tube boiler C、the water tube boiler will cost shorter time for steam raising D、the water tube boiler require lower skill in operating and maintaining