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NORA Chapter 3 and 5 Quiz (PCI-RH) | Latest Version | 2025/2026 | Correct & Verified
How does a high static pressure affect burner performance?✔✔ It can lead to incomplete combustion and system inefficiency
What does a combustion analyzer measure in an oil heating system?✔✔ Oxygen, carbon dioxide, and carbon monoxide levels
What could be a reason for an oil burner lockout condition?✔✔ No flame detected, control failure, or fuel supply issue
How does nozzle size affect burner performance?✔✔ It determines fuel flow rate and affects combustion efficiency
What could cause delayed ignition in an oil burner?✔✔ A dirty electrode, faulty transformer, or improper fuel spray
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How often should an oil furnace be serviced?✔✔ At least once a year for optimal performance
What is the purpose of a fuel oil deaerator?✔✔ To remove air from the fuel before it reaches the burner
How does cold weather affect oil burner operation?✔✔ It can thicken fuel oil and cause ignition problems
What does an air shutter adjustment control in an oil burner?✔✔ The amount of air mixed with fuel for combustion
Why is it important to check the flue pipe for obstructions?✔✔ To ensure proper venting and prevent carbon monoxide buildup
What is the function of the electrode in an oil burner?✔✔ To create the spark needed for ignition
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