MI Boiler Operator Practice Questions - Michigan Boiler Operator License Exam

What is the high-limit pressure control on a steam boiler designed to do?

To shut down the burner and lock out if pressure exceeds the safety setpoint, requiring manual reset To modulate the firing rate between high and low fire To open the safety valve when pressure is too high To increase feedwater flow to lower the temperature

Correct Answer:

To shut down the burner and lock out if pressure exceeds the safety setpoint, requiring manual reset

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