During working, thermostatic expansion valve should be （）.

A、either all the way open or all the way closed

B、normally fully open

C、throttled depending on load

D、controlled by liquefied pressure

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更多“During working, thermostatic expansion valve should be （）.”相关的问题

第1题

[单选题] It is during （） that work energy is being put into the engine; during the other 3 strokes of the piston, the engine is having to do the work.

A、the suction stroke B、the compression stroke C、the expansion stroke D、the exhaust stroke

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第2题

[单选题] According to regulations，a cargo hose used for transferring liquefied gases must have a bursting pressure of（）.

A、5 times the maximum working pressure on the hose during cargo transfer B、one half the designed working pressure C、4 times the pressure of the cargo pump used for transferring D、5 times the minimum working pressure on the hose during cargo transfer

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第3题

[单选题] You are kindly requested to supply the necessary tallymen to do（）on board the ship during the discharging of the cargo.

A、the tallying work B、the lashing work C、the clean work D、the work of opening and closing hatches

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第4题

[] It is during （） that work energy is being put into the engine; during the other 3 strokes of the piston, the engine is having to do the work.

A、A.the suction stroke B、B.the compression stroke C、C.the expansion stroke D、D.the exhaust stroke

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第5题

[单选题] Please kindly arrange for shore workers to do（）during loading the heavy cargo on deck as soon as possible.

A、the work of using lines and chains to secure the cargo on board B、the lash work C、the work of putting dunnage，keeping the cargo in position and not move when the ship is rolling and pitching D、the lashing work

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第6题

[单选题] Please arrange for the workers to do the（）work during loading the trucks and heavy cargo on the ship，and also supply the necessary materials for the work.

A、lashing B、shifting C、lifting D、tallying

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第7题

[单选题] Please arrnge for the workers to do the（）work during loading the trucks and heavy cargo on the ship, and also supply the necessary materials for the work.

A、lashing B、shifting C、lifting D、tallying

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第8题

[单选题] On an OSV，when may a work vest be substituted for a required life jacket?（）

A、To replace a damaged life jacket B、For use during fire drills C、For use during boat drills D、At no time