CERTIFICATION (FOURTH PERIOD)
EXAMINATION COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST
UPDATE THIS YEAR JUST RELEASED
The Alberta Electrician Apprenticeship Certification (Fourth Period)
examination evaluates whether apprentices possess the knowledge,
skills, and judgment required to perform work safely and competently as
journeyperson electricians. The examination typically emphasizes
electrical theory, Canadian electrical code application, motors and
controls, transformers, service equipment, distribution systems,
troubleshooting, safety practices, industrial installations, and electrical
calculations. Questions are commonly scenario-based and require
interpretation of workplace situations, drawings, specifications, and code
requirements.
Exam Coverage
Canadian Electrical Code Applications
o Installation requirements, conductor sizing, grounding,
bonding, overcurrent protection, and equipment ratings.
Electrical Safety Practices
o Lockout/tagout, arc-flash awareness, PPE requirements,
hazard identification, and safe work procedures.
Motor Controls and Starters
, o Control circuits, reversing circuits, overload protection,
troubleshooting motor systems, and control devices.
Transformers
o Single-phase and three-phase transformer operation,
calculations, connections, and applications.
Electrical Calculations
o Ohm's Law, power formulas, conductor ampacity, voltage
drop, and load calculations.
Distribution Systems
o Services, feeders, branch circuits, grounding systems, and
electrical equipment selection.
Blueprint and Diagram Interpretation
o Reading schematics, ladder diagrams, wiring diagrams, and
installation drawings.
Industrial Electrical Systems
o PLC basics, sensors, relays, automation components, and
industrial installations.
Troubleshooting Techniques
o Diagnosing faults, interpreting measurements, identifying
failed components, and corrective actions.
Electrical Equipment Installation
o Switchgear, panelboards, disconnects, raceways, conductors,
and utilization equipment.
1.
,While troubleshooting a three-phase motor installation, an
electrician finds normal line voltage at the starter but the
motor hums and fails to start. What is the most likely
cause?
A. Excessive grounding conductor size
B. One phase is open in the circuit
C. Neutral conductor resistance is too low
D. Motor enclosure is oversized
Answer: B
Rationale: Single-phasing commonly causes motors to hum
without developing adequate starting torque.
2.
A 600 V feeder experiences excessive voltage drop during
peak loading conditions. Which corrective action would
most effectively reduce voltage drop?
A. Increase conductor size
B. Install smaller overcurrent protection
C. Reduce grounding conductor size
D. Increase conduit fill
Answer: A
Rationale: Larger conductors reduce resistance and
therefore decrease voltage drop.
, 3.
An electrician measures 24 Ω resistance across a heating
element connected to a 240 V supply. Approximately how
much current should the element draw?
A. 5 A
B. 8 A
C. 10 A
D. 15 A
Answer: C
Rationale: I = V ÷ R = 240 ÷ 24 = 10 A.
4.
During maintenance of a motor control center, which
action should always occur before any energized
components are exposed?
A. Increase circuit loading
B. Remove grounding conductors
C. Perform lockout procedures
D. Disconnect overload heaters
Answer: C