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.<br>A:blow<br>B:clean<br>C:scavenge<br>D:purge

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

出自：海船船员证

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