Which of the following actions takes place in the control circuit of a semi-automatic (manual ignition) fired auxiliary boiler when the desired steam pressure is obtained?

Question

Accepted Answer

Secures the burner circuit and prevents manual re-starting of the burner until the steam pressure falls below the set cut-in pressure.

Answer

A temperature sensing device opens the circuit breaker in the burner motor.

Answer

The stack relay actuates the low limit control which breaks the ignition circuit.

Answer

The stack relay secures power to the high voltage side of the ignition transformer.

🔍 Key Concepts

💭 Think About

✅ Before You Answer