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Nora Bronze Study Guide Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What is the main purpose of an oil burner ignition system?✔✔ To ignite the fuel-air mixture for combustion
Why should an oil burner be tuned regularly?✔✔ To ensure efficient fuel combustion and prevent soot buildup
What happens if an oil burner nozzle is too large for the system?✔✔ It can cause excessive fuel consumption and improper combustion
Why is a draft regulator necessary in a heating system?✔✔ To maintain proper airflow and combustion efficiency
How does a clogged oil filter affect burner operation?✔✔ It restricts fuel flow and can cause burner shutdown
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What should be checked if an oil burner fails to start?✔✔ Power supply, fuel availability, and ignition components
Why is it important to properly vent combustion gases?✔✔ To remove harmful byproducts and ensure safe operation
What can cause an oil burner to produce excessive smoke?✔✔ Incomplete combustion due to improper air-to-fuel ratio
How does a flame retention head improve combustion?✔✔ It shapes and stabilizes the flame for better efficiency
Why must oil tanks be installed away from direct sunlight?✔✔ To prevent fuel expansion and condensation issues
What is one sign of poor draft in a chimney?✔✔ Smoke spilling into the room instead of venting properly
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