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【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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更多“A feed pump for an auxiliary boiler might lose suction if the （）.”相关的问题

第1题

[单选题] If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe （）.

A、high steam pressure in the boiler B、abnormally high feed water temperature C、abnormally high boiler water temperature D、steam demand exceeding feed pump capacity

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第2题

[单选题] The most suitable pump for oily water separator feed duties is （）.

A、a reciprocating pump B、a vane pump C、a centrifugal pump D、a triple screw pump

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第3题

[单选题] In a vacuum boiling evaporator, the fresh water generated is pumped out by （）.

A、a brine pump B、an air ejector C、a feed water pump D、a condensate pump

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第4题

[] As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: （） (1) secure oil to fires (2) increase feed pump pressure As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: （） (1) secure oil to fires (2) increase feed pump pressure

A、A.（1） B、B.（1）and（2） C、C.（2） D、D.neither（1）nor（2）

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第5题

[] Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?（）

A、A.Increased suction head pressure B、B.Decreased feedwater temperature C、C.Pump recirculating line being open too much D、D.Excessive feedwater temperature

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第6题

[单选题] With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out by （）.

A、a brine pump B、an air ejector C、a feed pump D、distillate pump

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第7题

[单选题] The （）pump is usually used as the bilge feed pump to an oily water separator.

A、turbine B、screw C、vane D、ejector

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第8题

[单选题] A compound gauge is typically installed on the （）.

A、suction side of a bilge pump B、exhaust manifold of an auxiliary diesel C、discharge line from an air compressor D、chemical feed tank of an evaporator

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第9题

[] Which of the following pumps is most suitable for an oily water separator?（）

A、A.reciprocating pump B、B.vane pump C、C.mono pump D、D.axial-flow pump

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