SC Heating Practice Questions - South Carolina Heating Contractor Examination Exam

Incomplete combustion in a gas- or oil-fired heating appliance is primarily associated with which hazard?

Excess oxygen that cools the heat exchanger and eliminates all flue gas Production of carbon monoxide from a cracked heat exchanger, blocked vent, flame rollout, or starved burner A high-limit switch that opens on a normal temperature rise A listed Type B vent installed with its required clearance

Correct Answer:

Production of carbon monoxide from a cracked heat exchanger, blocked vent, flame rollout, or starved burner

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