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Ontario Oil Burner Technician 1 (OBT1) Certification
Exam Actual Test Questions and Correct Answers With
Rationales LATEST THIS YEAR
Ontario Oil Burner Technician 1 (OBT1) Certification Exam
Exam Coverage Summary
The Oil Burner Technician 1 (OBT1) certification is administered by the Technical Standards and Safety
Authority (TSSA) in Ontario . OBT1 is the entry-level certification in the oil burner technician series,
allowing technicians to install, service, and maintain residential oil-fired appliances . To qualify for the
OBT1 exam, candidates must hold an OBT2 or IMT certificate and have completed at least 4,000 hours
of work experience, including 500 hours on oil-fired systems exceeding 7 US gallons per hour under
OBT1 supervision . The exam covers oil burner operation, combustion principles, ignition systems (spark
ignition), burner components (fuel pump, nozzle, electrodes, cad cell), safety controls, draft
requirements, spill switches, maintenance procedures, troubleshooting techniques, and regulatory
compliance.
Question 1
What is the primary purpose of an oil burner in a heating system?
A) Generate electricity
B) Heat water or air for space heating
C) Purify fuel oil
D) Measure fuel consumption
Correct Answer: B
Summary Rationale: The main function of an oil burner is to provide heat by combusting fuel oil and
transferring it to water or air in the heating system .
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Question 2
Which type of fuel is typically used in residential oil burners in Ontario?
A) Diesel
B) Natural gas
C) No. 2 fuel oil
D) Propane
Correct Answer: C
Summary Rationale: No. 2 fuel oil is standard for residential heating due to its appropriate viscosity and
energy content .
Question 3
What is the most common ignition method in an OBT1 system?
A) Hot surface ignitor
B) Spark ignition
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C) Pilot light
D) Electric arc
Correct Answer: B
Summary Rationale: Oil burners generally use spark ignition to ignite the atomized oil spray .
Question 4
Why is atomization important in oil burners?
A) Reduces oil viscosity
B) Ensures complete combustion
C) Increases fuel storage life
D) Prevents oil from freezing
Correct Answer: B
Summary Rationale: Atomizing the oil into a fine mist allows it to mix efficiently with air, promoting
complete combustion .
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Question 5
What component controls the fuel supply in an oil burner?
A) Transformer
B) Fuel pump
C) Nozzle
D) Combustion chamber
Correct Answer: B
Summary Rationale: The fuel pump delivers oil from the tank to the nozzle at the correct pressure for
atomization .
Question 6
What does the nozzle in an oil burner do?
A) Filters impurities from the oil
B) Atomizes the fuel oil into a fine spray
Ontario Oil Burner Technician 1 (OBT1) Certification
Exam Actual Test Questions and Correct Answers With
Rationales LATEST THIS YEAR
Ontario Oil Burner Technician 1 (OBT1) Certification Exam
Exam Coverage Summary
The Oil Burner Technician 1 (OBT1) certification is administered by the Technical Standards and Safety
Authority (TSSA) in Ontario . OBT1 is the entry-level certification in the oil burner technician series,
allowing technicians to install, service, and maintain residential oil-fired appliances . To qualify for the
OBT1 exam, candidates must hold an OBT2 or IMT certificate and have completed at least 4,000 hours
of work experience, including 500 hours on oil-fired systems exceeding 7 US gallons per hour under
OBT1 supervision . The exam covers oil burner operation, combustion principles, ignition systems (spark
ignition), burner components (fuel pump, nozzle, electrodes, cad cell), safety controls, draft
requirements, spill switches, maintenance procedures, troubleshooting techniques, and regulatory
compliance.
Question 1
What is the primary purpose of an oil burner in a heating system?
A) Generate electricity
B) Heat water or air for space heating
C) Purify fuel oil
D) Measure fuel consumption
Correct Answer: B
Summary Rationale: The main function of an oil burner is to provide heat by combusting fuel oil and
transferring it to water or air in the heating system .
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Question 2
Which type of fuel is typically used in residential oil burners in Ontario?
A) Diesel
B) Natural gas
C) No. 2 fuel oil
D) Propane
Correct Answer: C
Summary Rationale: No. 2 fuel oil is standard for residential heating due to its appropriate viscosity and
energy content .
Question 3
What is the most common ignition method in an OBT1 system?
A) Hot surface ignitor
B) Spark ignition
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C) Pilot light
D) Electric arc
Correct Answer: B
Summary Rationale: Oil burners generally use spark ignition to ignite the atomized oil spray .
Question 4
Why is atomization important in oil burners?
A) Reduces oil viscosity
B) Ensures complete combustion
C) Increases fuel storage life
D) Prevents oil from freezing
Correct Answer: B
Summary Rationale: Atomizing the oil into a fine mist allows it to mix efficiently with air, promoting
complete combustion .
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Question 5
What component controls the fuel supply in an oil burner?
A) Transformer
B) Fuel pump
C) Nozzle
D) Combustion chamber
Correct Answer: B
Summary Rationale: The fuel pump delivers oil from the tank to the nozzle at the correct pressure for
atomization .
Question 6
What does the nozzle in an oil burner do?
A) Filters impurities from the oil
B) Atomizes the fuel oil into a fine spray
