Question 185Motor Plants - 1st Asst/Chief
70% to passIn the event of a flame failure in an auxiliary water-tube boiler, you must _______________.
Arelight the boiler immediately to prevent loss of steam pressure
Brelight the fire off the brickwork as long as the bricks are cherry red
Cpurge the furnace of any combustible gases before attempting to relight the fire
Dspeed up the feed pump to prevent dry firing when the burner flame is re-established
AI Explanation
The correct answer is C) purge the furnace of any combustible gases before attempting to relight the fire. In the event of a flame failure in an auxiliary water-tube boiler, it is crucial to purge the furnace of any combustible gases before relighting the fire. This is to prevent the risk of a sudden flare-up or explosion when the fire is relit, which could be hazardous. The other options, such as relighting the boiler immediately or relighting off the brickwork, would be unsafe and could lead to further damage or injury. Speeding up the feed pump (option D) would not address the immediate safety concern of the combustible gases in the furnace.
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