MI Boiler Operator Practice Questions - Michigan Boiler Operator License Exam

What is the function of a modulating burner control?

To continuously adjust the firing rate to match the steam or hot-water demand To switch the burner between on and off states only To control the fuel-to-air ratio during purge cycles To provide manual override of all automatic controls

Correct Answer:

To continuously adjust the firing rate to match the steam or hot-water demand

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