When starting air-conditioner in the winter, we should open（）in sequence. Ⅰ.alve of warming Ⅱ.alve of humidifier Ⅲ.an

A、Ⅲ-Ⅱ-Ⅰ

B、Ⅲ-Ⅰ-Ⅱ

C、Ⅰ-Ⅲ-Ⅱ

D、Ⅱ-Ⅲ-Ⅰ

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更多“ When starting air-conditioner in the winter, we should open（）in sequence. Ⅰ.alve of warming Ⅱ.alve of humidifier Ⅲ.an”相关的问题

第1题

[单选题] When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）

A、an obstruction in an cylinder B、water accumulation in some engine cylinders C、low starting air pressure D、low scavenge air pressure

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第2题

[单选题] When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.

A、just B、nearly C、merely D、already

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第3题

[单选题] In an operating diesel engine, which of the following condition is an indication of a leaking air starting valve?（）

A、noise coming from that air starting valve B、continuous operation of the starting air compressor C、zero air pressure in the air starting system D、overheated starting air pipe to the cylinder head

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第4题

[单选题] When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the（）

A、starting air pressure B、scavenge air pressure C、over-speed trip D、banjo oiler line

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第5题

[单选题] When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the（）

A、starting air pressure B、scavenge air pressure C、over-speed trip D、banjo oiler line

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第6题

[] When an air started, four-stroke/cycle diesel engine is being cranked, the starting air is admitted to each cylinder during what would normally be the（）

A、A.intake stroke B、B.compression stroke C、C.power stroke D、D.exhaust stroke

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第7题

[单选题] Diesel engine air start system check valves are opened by （）

A、an air start cam B、cylinder compression pressure C、starting air pressure D、valve springs

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第8题

[单选题] Diesel engine air start system check valves are opened by （）

A、an air start cam B、cylinder compression pressure C、starting air pressure D、valve springs

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第9题

[单选题] Vessels having main engines arranged for air starting are to be provided with at least （）

A、one automatic drain serving both containers B、two air starting containers of approximately equal size C、one control air container and one starting air container D、one additional means of starting the main engine

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第10题

[单选题] Which cause of the following can lead to the engine not to start on air?（）

A、starting air pressure too high B、correct timing of starting air valves C、three of the starting valves stuck D、the turning gear disengaged

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