MI Boiler Operator Practice Questions - Michigan Boiler Operator License Exam

What is the correct sequence for lighting off a gas-fired boiler?

Verify water level, complete pre-purge, establish pilot flame, then open main fuel valve Open main fuel valve, establish pilot flame, then verify water level Complete pre-purge, open main fuel valve, then establish pilot flame Establish pilot flame, skip pre-purge if boiler was recently shut down, then open main fuel valve

Correct Answer:

Verify water level, complete pre-purge, establish pilot flame, then open main fuel valve

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