搜题

【单选题】

Domestic water pump is started automatically by （） which operates as the water level falls to a predetermined level.

A、a level controller

B、a temperature switch

C、a pressure switch

D、a floating ball

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更多“Domestic water pump is started automatically by （） which operates as the water level falls to a predetermined level.”相关的问题

第1题

[单选题] In a domestic fresh water system, the pump starters are controlled by （） switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.

A、water level B、water flow C、temperature D、pressure

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第2题

[单选题] The domestic fresh water pump starters are controlled by pressure switches which operate when the pressure in the tank varies within predetermined limits as water is drawn offThe word “which” means （）.

A、starters B、pressure switches C、pressure D、water

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第3题

[单选题] In general, domestic flesh water tank kept under pressure by an external supply of （）.

A、forced circulating pump B、compressed air C、gravity tank D、bead tank

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第4题

[单选题] （） provides the head or pressure to supply the domestic water where required.

A、The compressed air B、The compressing air C、The transfer pump D、The head tank

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第5题

[单选题] Which pump installation would require an external source of sealing water?（）

A、Main circulator pump jacket water cooling B、Salt water service pump C、Auxiliary condensate pump D、Bilge pump

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第6题

[单选题] （）belongs to emergency power supplying equipments.

A、Emergency fire pump B、Windlass C、Main sea water pump D、Fresh water pump

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第7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8题

[单选题] Oil water separators are used to ensure that ships don’t discharge oil when （） bilge water.

A、to pump off B、being pumped C、pumping out D、it pumping out

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第9题

[单选题] In the two stage flash distilling plant, which of the pumps listed is vented to the shell of the second stage in order to remove vapor from the pump suction?（）

A、Condenser circulating water pump B、Feed-water heater drain pump C、Distillate pump D、Air ejector condenser drain pump

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