BC Powerline Technician Certificate of
Qualification Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. The primary function of a pole line switch is to
A. Protect transformers from overcurrent
B. Isolate sections of the line for maintenance
C. Increase voltage along the line
D. Measure current in the conductor
B
Isolating sections of a line allows maintenance crews to work
safely without de-energizing the entire system.
2. Which conductor type is commonly used for high-voltage
overhead lines?
A. Copper-clad steel
B. Aluminum
C. Bare copper
D. Fiber optic
B
Aluminum is lightweight, strong, and has good conductivity,
making it ideal for high-voltage lines.
3. When climbing a pole, the first point of contact should be:
A. The top crossarm
B. A stable pole step or climbing belt
, C. The conductor itself
D. The ground
B
Using a pole step or climbing belt ensures safety and proper
support before reaching higher points.
4. The minimum approach distance for a worker near a 25 kV line is
approximately:
A. 0.3 m
B. 1.0 m
C. 3.0 m
D. 5.0 m
C
Minimum approach distances prevent electrical arcing and ensure
worker safety.
5. Which device protects a distribution line from lightning strikes?
A. Fuse
B. Lightning arrester
C. Circuit breaker
D. Transformer
B
Lightning arresters divert high-voltage surges to ground,
protecting equipment and lines.
6. The purpose of a neutral conductor in a three-phase system is to:
A. Carry unbalanced current
B. Increase voltage
C. Reduce resistance
D. Support pole stability
, A
The neutral carries any imbalance between the phases,
maintaining system stability.
7. Which type of transformer is typically used on a distribution pole?
A. Step-up transformer
B. Step-down transformer
C. Isolation transformer
D. Autotransformer
B
Step-down transformers reduce high-voltage distribution to levels
suitable for homes and businesses.
8. When splicing conductors in the field, the connection must:
A. Be painted immediately
B. Maintain mechanical strength and conductivity
C. Only provide mechanical support
D. Avoid using connectors
B
Proper splicing ensures reliable electrical continuity and
mechanical stability.
9. Rubber gloves used on live lines must be:
A. Tested daily
B. Tested before each use
C. Replaced monthly
D. Only worn over leather gloves
B
Testing before each use ensures gloves are not compromised and
provide proper insulation.
, 10. When installing a grounding system for a pole transformer,
the grounding rod must be:
A. Painted for visibility
B. Driven deep into the soil to reach low resistance
C. Installed on top of the pole
D. Connected only to the transformer frame
B
Deep soil placement ensures the ground connection has low
resistance and effectively diverts fault current.
11. The primary hazard of working near energized lines is:
A. Falling
B. Electrocution
C. Noise exposure
D. UV exposure
B
Electric shock from energized conductors is the most immediate
and dangerous risk.
12. A load break switch is used to:
A. Disconnect lines under load safely
B. Measure voltage drop
C. Fuse circuits
D. Ground lines
A
Load break switches allow safe interruption of current without
endangering workers.
13. When tensioning a conductor on a pole line, the tension
must be:
Qualification Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. The primary function of a pole line switch is to
A. Protect transformers from overcurrent
B. Isolate sections of the line for maintenance
C. Increase voltage along the line
D. Measure current in the conductor
B
Isolating sections of a line allows maintenance crews to work
safely without de-energizing the entire system.
2. Which conductor type is commonly used for high-voltage
overhead lines?
A. Copper-clad steel
B. Aluminum
C. Bare copper
D. Fiber optic
B
Aluminum is lightweight, strong, and has good conductivity,
making it ideal for high-voltage lines.
3. When climbing a pole, the first point of contact should be:
A. The top crossarm
B. A stable pole step or climbing belt
, C. The conductor itself
D. The ground
B
Using a pole step or climbing belt ensures safety and proper
support before reaching higher points.
4. The minimum approach distance for a worker near a 25 kV line is
approximately:
A. 0.3 m
B. 1.0 m
C. 3.0 m
D. 5.0 m
C
Minimum approach distances prevent electrical arcing and ensure
worker safety.
5. Which device protects a distribution line from lightning strikes?
A. Fuse
B. Lightning arrester
C. Circuit breaker
D. Transformer
B
Lightning arresters divert high-voltage surges to ground,
protecting equipment and lines.
6. The purpose of a neutral conductor in a three-phase system is to:
A. Carry unbalanced current
B. Increase voltage
C. Reduce resistance
D. Support pole stability
, A
The neutral carries any imbalance between the phases,
maintaining system stability.
7. Which type of transformer is typically used on a distribution pole?
A. Step-up transformer
B. Step-down transformer
C. Isolation transformer
D. Autotransformer
B
Step-down transformers reduce high-voltage distribution to levels
suitable for homes and businesses.
8. When splicing conductors in the field, the connection must:
A. Be painted immediately
B. Maintain mechanical strength and conductivity
C. Only provide mechanical support
D. Avoid using connectors
B
Proper splicing ensures reliable electrical continuity and
mechanical stability.
9. Rubber gloves used on live lines must be:
A. Tested daily
B. Tested before each use
C. Replaced monthly
D. Only worn over leather gloves
B
Testing before each use ensures gloves are not compromised and
provide proper insulation.
, 10. When installing a grounding system for a pole transformer,
the grounding rod must be:
A. Painted for visibility
B. Driven deep into the soil to reach low resistance
C. Installed on top of the pole
D. Connected only to the transformer frame
B
Deep soil placement ensures the ground connection has low
resistance and effectively diverts fault current.
11. The primary hazard of working near energized lines is:
A. Falling
B. Electrocution
C. Noise exposure
D. UV exposure
B
Electric shock from energized conductors is the most immediate
and dangerous risk.
12. A load break switch is used to:
A. Disconnect lines under load safely
B. Measure voltage drop
C. Fuse circuits
D. Ground lines
A
Load break switches allow safe interruption of current without
endangering workers.
13. When tensioning a conductor on a pole line, the tension
must be:
