Practice Questions 2026 || Most Recent Exam 2026
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What component atomizes fuel oil? - ANSWER -Burner nozzle
What flame indicates excess air? - ANSWER -White flame
What device prevents overheating? - ANSWER -Aquastat
What is the function of the chimney? - ANSWER -Remove
combustion gases
What should be done if burner flame fails? - ANSWER -Shut
down burner What does black smoke indicate? - ANSWER -
Lack of air
Who issues the PI99 certificate? - ANSWER -FDNY
What device provides ignition for oil burners? - ANSWER -
Ignition transformer
, What is the purpose of an oil pump? - ANSWER -Pump oil to
burner
What indicates poor combustion? - ANSWER -Smoke or soot
What must be checked before starting burner? - ANSWER -
Oil supply and
safety
controls
What is the main purpose of a boiler? - ANSWER -Produce heat
What safety device prevents excessive pressure? -
ANSWER -Safety relief
valve
What is the combustion chamber? - ANSWER -Area where fuel
burns
What device controls fuel flow to burner? - ANSWER -Oil pump
Who must be present in the boiler room during startup? -
ANSWER -Operator
What measures vacuum pressure? - ANSWER -Vacuum gauge
What should be inspected regularly in the system? - ANSWER
-Safety devices