ONTARIO ELECTRICIAN LICENSING EXAM
CERTIFICATE OF QUALIFICATION (C OF Q) PRACTICE
EXAM COMPLETE 200 QUESTIONS & ANSWERS WITH
RATIONALES |NEW 2026/2027 UPDATE | 100%
CORRECT | VERIFIED SOLUTIONS (GRADED A)
SECTION A: ONTARIO ELECTRICAL SAFETY CODE (OESC) & REGULATORY FRAMEWORK
QUESTION 1
What is the primary purpose of the Ontario Electrical Safety Code (OESC)?
A. To regulate plumbing systems in residential buildings
B. To ensure safe installation and maintenance of electrical equipment
C. To control building aesthetics and architectural design
D. To manage electrical billing and utility rates
Correct Answer: B
Rationale: The Ontario Electrical Safety Code establishes mandatory safety
standards for electrical installations to protect people and property from
electrical hazards[reference:2]. It is enforced by the Electrical Safety
Authority (ESA) in Ontario.
QUESTION 2
Which provincial authority in Ontario is primarily responsible for electrical
safety regulation and enforcement?
A. Ontario Electrical Licensing Board
,B. Electrical Safety Authority (ESA)
C. Ministry of Energy
D. Ontario Power Generation
Correct Answer: B
Rationale: The Electrical Safety Authority (ESA) is the delegated authority in
Ontario responsible for enforcing the OESC, conducting inspections, and
issuing permits[reference:3].
QUESTION 3
According to the OESC, when must inspections of electrical installations be
conducted?
A. Every 3 years on a fixed schedule
B. Every 5 years on a fixed schedule
C. As required when changes or new installations occur
D. Annually regardless of changes
Correct Answer: C
Rationale: Inspections are required whenever new installations or significant
changes are made to existing electrical systems, rather than on a fixed
schedule[reference:4].
,QUESTION 4
What is the minimum passing grade required for the Ontario Electrician
Licensing Exam (Certificate of Qualification)?
A. 60%
B. 65%
C. 70%
D. 75%
Correct Answer: C
Rationale: Candidates must achieve a score of 70% to pass the Skilled Trades
Ontario electrician certification exam[reference:5].
QUESTION 5
Which document defines the legal authority that enforces electrical safety
in Ontario?
A. Canadian Electrical Code (CEC)
B. Ontario Electrical Safety Code (OESC)
C. Occupational Health and Safety Act (OHSA)
D. Building Code Act
Correct Answer: B
Rationale: The Ontario Electrical Safety Code (OESC) is the regulation that
defines the legal authority for electrical safety enforcement in
Ontario[reference:6].
, QUESTION 6
What is the purpose of a permit in electrical work?
A. To authorize electrical work and ensure compliance with codes
B. To increase the voltage of the electrical system
C. To reduce the current in the electrical system
D. To provide a warranty for electrical equipment
Correct Answer: A
Rationale: Electrical permits are required for many installations to ensure
compliance with codes and safety standards. They are obtained from the ESA.
QUESTION 7
How often must a journeyperson in a compulsory trade renew their Certificate
of Qualification in Ontario?
A. Every 6 months
B. Every year
C. Every 2 years
D. Every 5 years
Correct Answer: B
Rationale: Journeypersons in compulsory trades must renew their Certificate
CERTIFICATE OF QUALIFICATION (C OF Q) PRACTICE
EXAM COMPLETE 200 QUESTIONS & ANSWERS WITH
RATIONALES |NEW 2026/2027 UPDATE | 100%
CORRECT | VERIFIED SOLUTIONS (GRADED A)
SECTION A: ONTARIO ELECTRICAL SAFETY CODE (OESC) & REGULATORY FRAMEWORK
QUESTION 1
What is the primary purpose of the Ontario Electrical Safety Code (OESC)?
A. To regulate plumbing systems in residential buildings
B. To ensure safe installation and maintenance of electrical equipment
C. To control building aesthetics and architectural design
D. To manage electrical billing and utility rates
Correct Answer: B
Rationale: The Ontario Electrical Safety Code establishes mandatory safety
standards for electrical installations to protect people and property from
electrical hazards[reference:2]. It is enforced by the Electrical Safety
Authority (ESA) in Ontario.
QUESTION 2
Which provincial authority in Ontario is primarily responsible for electrical
safety regulation and enforcement?
A. Ontario Electrical Licensing Board
,B. Electrical Safety Authority (ESA)
C. Ministry of Energy
D. Ontario Power Generation
Correct Answer: B
Rationale: The Electrical Safety Authority (ESA) is the delegated authority in
Ontario responsible for enforcing the OESC, conducting inspections, and
issuing permits[reference:3].
QUESTION 3
According to the OESC, when must inspections of electrical installations be
conducted?
A. Every 3 years on a fixed schedule
B. Every 5 years on a fixed schedule
C. As required when changes or new installations occur
D. Annually regardless of changes
Correct Answer: C
Rationale: Inspections are required whenever new installations or significant
changes are made to existing electrical systems, rather than on a fixed
schedule[reference:4].
,QUESTION 4
What is the minimum passing grade required for the Ontario Electrician
Licensing Exam (Certificate of Qualification)?
A. 60%
B. 65%
C. 70%
D. 75%
Correct Answer: C
Rationale: Candidates must achieve a score of 70% to pass the Skilled Trades
Ontario electrician certification exam[reference:5].
QUESTION 5
Which document defines the legal authority that enforces electrical safety
in Ontario?
A. Canadian Electrical Code (CEC)
B. Ontario Electrical Safety Code (OESC)
C. Occupational Health and Safety Act (OHSA)
D. Building Code Act
Correct Answer: B
Rationale: The Ontario Electrical Safety Code (OESC) is the regulation that
defines the legal authority for electrical safety enforcement in
Ontario[reference:6].
, QUESTION 6
What is the purpose of a permit in electrical work?
A. To authorize electrical work and ensure compliance with codes
B. To increase the voltage of the electrical system
C. To reduce the current in the electrical system
D. To provide a warranty for electrical equipment
Correct Answer: A
Rationale: Electrical permits are required for many installations to ensure
compliance with codes and safety standards. They are obtained from the ESA.
QUESTION 7
How often must a journeyperson in a compulsory trade renew their Certificate
of Qualification in Ontario?
A. Every 6 months
B. Every year
C. Every 2 years
D. Every 5 years
Correct Answer: B
Rationale: Journeypersons in compulsory trades must renew their Certificate
