Manitoba Journeyperson Electrician
Certification Practice Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the nominal voltage of a standard single-phase residential
supply in Manitoba?
A. 120/208 V
B. 120/240 V
C. 277/480 V
D. 347/600 V
Standard residential services in Manitoba are single-phase
120/240 V systems.
2. What is the maximum allowable voltage drop for a branch circuit
supplying lighting according to the Canadian Electrical Code?
A. 2%
B. 3%
C. 5%
D. 8%
The CEC recommends a maximum of 3% voltage drop on branch
circuits for efficiency and performance.
3. Which conductor is permitted to be bare in a cable assembly?
A. Neutral conductor
B. Phase conductor
C. Bonding conductor
, D. Identified conductor
Bonding conductors may be bare, insulated, or covered depending
on application.
4. What is the primary purpose of grounding electrical equipment?
A. Reduce power consumption
B. Improve voltage regulation
C. Provide a low-impedance path for fault current
D. Increase system capacity
Grounding ensures fault currents travel safely to trip protective
devices.
5. Which CEC rule governs overcurrent protection for conductors?
A. Rule 4-004
B. Rule 8-104
C. Rule 14-104
D. Rule 26-700
Rule 14-104 covers the rating and application of overcurrent
devices.
6. What is the maximum continuous load permitted on a circuit
breaker?
A. 50%
B. 70%
C. 80%
D. 100%
Continuous loads must not exceed 80% of the breaker rating.
7. What colour insulation is required for the neutral conductor in AC
systems?
A. Green
, B. Red
C. Black
D. White or natural grey
Neutral conductors must be identified white or natural grey.
8. Which device provides protection against ground faults in
residential bathrooms?
A. AFCI
B. Fuse
C. GFCI
D. Isolator
GFCIs protect people from shock by detecting ground faults.
9. What is the minimum burial depth for PVC conduit under
residential driveways?
A. 300 mm
B. 450 mm
C. 600 mm
D. 900 mm
The CEC specifies deeper burial under driveways for mechanical
protection.
10. What is the function of an arc-fault circuit interrupter?
A. Protect motors from overload
B. Prevent voltage drop
C. Detect dangerous arcing conditions
D. Limit short-circuit current
AFCIs reduce fire risk by detecting arcing faults.
11. Which table in the CEC is used to size copper conductors
based on ampacity?
Certification Practice Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the nominal voltage of a standard single-phase residential
supply in Manitoba?
A. 120/208 V
B. 120/240 V
C. 277/480 V
D. 347/600 V
Standard residential services in Manitoba are single-phase
120/240 V systems.
2. What is the maximum allowable voltage drop for a branch circuit
supplying lighting according to the Canadian Electrical Code?
A. 2%
B. 3%
C. 5%
D. 8%
The CEC recommends a maximum of 3% voltage drop on branch
circuits for efficiency and performance.
3. Which conductor is permitted to be bare in a cable assembly?
A. Neutral conductor
B. Phase conductor
C. Bonding conductor
, D. Identified conductor
Bonding conductors may be bare, insulated, or covered depending
on application.
4. What is the primary purpose of grounding electrical equipment?
A. Reduce power consumption
B. Improve voltage regulation
C. Provide a low-impedance path for fault current
D. Increase system capacity
Grounding ensures fault currents travel safely to trip protective
devices.
5. Which CEC rule governs overcurrent protection for conductors?
A. Rule 4-004
B. Rule 8-104
C. Rule 14-104
D. Rule 26-700
Rule 14-104 covers the rating and application of overcurrent
devices.
6. What is the maximum continuous load permitted on a circuit
breaker?
A. 50%
B. 70%
C. 80%
D. 100%
Continuous loads must not exceed 80% of the breaker rating.
7. What colour insulation is required for the neutral conductor in AC
systems?
A. Green
, B. Red
C. Black
D. White or natural grey
Neutral conductors must be identified white or natural grey.
8. Which device provides protection against ground faults in
residential bathrooms?
A. AFCI
B. Fuse
C. GFCI
D. Isolator
GFCIs protect people from shock by detecting ground faults.
9. What is the minimum burial depth for PVC conduit under
residential driveways?
A. 300 mm
B. 450 mm
C. 600 mm
D. 900 mm
The CEC specifies deeper burial under driveways for mechanical
protection.
10. What is the function of an arc-fault circuit interrupter?
A. Protect motors from overload
B. Prevent voltage drop
C. Detect dangerous arcing conditions
D. Limit short-circuit current
AFCIs reduce fire risk by detecting arcing faults.
11. Which table in the CEC is used to size copper conductors
based on ampacity?
