你可能感興趣的試題

Which one is not the normal operation for boiler shutdown?（）

A.Carry out soot blowing if permissible
B.Change fuel supply to diesel oil
C.Close steam stop valves on boiler when pressure is reduced
D.Drain boiler empty when it has cooled down

單項(xiàng)選擇題

The forced draught fan should be started and air passed through the furnace for several minutes to “（）” it of any exhaust gas or oil vapors.

A.blow
B.clean
C.scavenge
D.purge

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Water enters the rotating impeller through the entry, known as “（）”, at the centre.

你可能感興趣的試題

Which one is not the normal operation for boiler shutdown?（）

The forced draught fan should be started and air passed through the furnace for several minutes to “（）” it of any exhaust gas or oil vapors.