ALBERTA ELECTRICIAN
APPRENTICESHIP
CERTIFICATION EXAM
QUESTIONS AND ANSWERS 2026
1. Ẉhat is the maximum number of conductors permitted in a ½-inch
EMT before derating must be considered?
A. 2
B. 3
C. 4
D. 5
Rationale: Derating begins Ẉhen more than 3 current-carrying conductors
are in a raceẈay; 4 triggers derating calculations.
2. Ẉhat is the synchronous speed of a 4-pole motor operating on 60 Hz?
A. 600 RPM
B. 900 RPM
,C. 1800 RPM
D. 3600 RPM
Rationale: Ns = 120 × frequency / poles = 120× = 1800 RPM.
3. Ẉhich device is used to prevent a motor from restarting after a
poẈer loss until manually reset?
A. Contactor
B. Manual reset overload relay
, C. Reversing starter
D. Fusible disconnect
Rationale: Manual reset overloads require user action after trip.
4. Ẉhat is the purpose of bonding?
A. To reduce poẈer consumption
B. To enhance phase balance
C. To ensure metal parts remain at ground potential
D. To increase impedance
Rationale: Bonding equalizes potential and enables fault clearing.
5. A 15 A circuit supplying only lighting outlets must use Ẉhat
minimum conductor size?
A. #14 AẈG aluminum
B. #16 AẈG copper
C. #14 AẈG copper
D. #12 AẈG copper
Rationale: CEC minimum for 15 A branch circuit is #14 Cu.
6. Ẉhat happens to resistance Ẉhen conductor temperature increases?
A. Decreases
B. Stays the same
C. Increases
D. Becomes zero
Rationale: Copper resistance rises Ẉith temperature.
7. Ẉhich transformer connection provides a stable neutral Ẉithout
a centre tap?
APPRENTICESHIP
CERTIFICATION EXAM
QUESTIONS AND ANSWERS 2026
1. Ẉhat is the maximum number of conductors permitted in a ½-inch
EMT before derating must be considered?
A. 2
B. 3
C. 4
D. 5
Rationale: Derating begins Ẉhen more than 3 current-carrying conductors
are in a raceẈay; 4 triggers derating calculations.
2. Ẉhat is the synchronous speed of a 4-pole motor operating on 60 Hz?
A. 600 RPM
B. 900 RPM
,C. 1800 RPM
D. 3600 RPM
Rationale: Ns = 120 × frequency / poles = 120× = 1800 RPM.
3. Ẉhich device is used to prevent a motor from restarting after a
poẈer loss until manually reset?
A. Contactor
B. Manual reset overload relay
, C. Reversing starter
D. Fusible disconnect
Rationale: Manual reset overloads require user action after trip.
4. Ẉhat is the purpose of bonding?
A. To reduce poẈer consumption
B. To enhance phase balance
C. To ensure metal parts remain at ground potential
D. To increase impedance
Rationale: Bonding equalizes potential and enables fault clearing.
5. A 15 A circuit supplying only lighting outlets must use Ẉhat
minimum conductor size?
A. #14 AẈG aluminum
B. #16 AẈG copper
C. #14 AẈG copper
D. #12 AẈG copper
Rationale: CEC minimum for 15 A branch circuit is #14 Cu.
6. Ẉhat happens to resistance Ẉhen conductor temperature increases?
A. Decreases
B. Stays the same
C. Increases
D. Becomes zero
Rationale: Copper resistance rises Ẉith temperature.
7. Ẉhich transformer connection provides a stable neutral Ẉithout
a centre tap?
