California Utility Line Worker
Certification Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2025 Q&A | Instant
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1. What is the primary purpose of a utility line worker?
A) Design electrical systems
B) Repair and maintain electrical power lines
C) Manufacture electrical equipment
D) Inspect electrical wiring only
B) Repair and maintain electrical power lines
The main role of a utility line worker is to install, maintain, and repair
electrical power distribution and transmission lines.
2. Before climbing a utility pole, what must a line worker do first?
A) Inspect the weather forecast
B) Test the pole for stability
C) Obtain proper authorization and ensure power is off if required
D) Notify the customer
,C) Obtain proper authorization and ensure power is off if required
Safety protocols require that power is de-energized or proper clearance is
obtained before climbing to prevent electric shock.
3. What is the minimum approach distance a line worker should maintain
from a live conductor rated at 7,200 volts?
A) 2 feet
B) 5 feet
C) 10 feet
D) 20 feet
B) 5 feet
OSHA and utility safety standards specify minimum approach distances
depending on voltage levels; 5 feet is standard for 7,200 volts.
4. Which personal protective equipment (PPE) is essential when working
near energized lines?
A) Insulated gloves and sleeves
B) Hard hat and safety glasses
C) Hearing protection
D) Steel-toed boots only
A) Insulated gloves and sleeves
Insulated gloves and sleeves protect against electrical shock when working
near energized lines.
5. What type of test is used to check if a line is energized?
A) Voltage detector
B) Continuity tester
C) Circuit breaker
D) Ohmmeter
,A) Voltage detector
Voltage detectors help workers verify the presence or absence of voltage
on electrical lines.
6. When using a hot stick, what is its main purpose?
A) Measuring line length
B) Insulating the worker from electric shock
C) Digging around poles
D) Marking lines on the ground
B) Insulating the worker from electric shock
Hot sticks allow line workers to handle energized lines safely by
maintaining insulation distance.
7. What is a common cause of utility line failures?
A) Lightning strikes
B) Equipment aging
C) Vegetation contact
D) All of the above
D) All of the above
Lightning, aging equipment, and contact with vegetation are frequent
causes of line failures.
8. What is the best method to control vegetation near power lines?
A) Herbicide application without restrictions
B) Pruning and removing trees according to regulations
C) Leaving all vegetation as is
D) Burning vegetation under power lines
, B) Pruning and removing trees according to regulations
Proper pruning prevents vegetation from interfering with lines and causing
outages or hazards.
9. What type of ladder should never be used near energized lines?
A) Fiberglass ladder
B) Aluminum ladder
C) Wooden ladder
D) Plastic ladder
B) Aluminum ladder
Aluminum ladders conduct electricity and pose a serious shock hazard near
energized lines.
10. When working on a distribution transformer, what precaution
should be taken?
A) Wear hearing protection
B) Ensure the transformer is de-energized before servicing
C) Remove all PPE
D) Work without tools
B) Ensure the transformer is de-energized before servicing
De-energizing equipment before service prevents electrocution risks.
11. What is a “rubber glove test” for line workers?
A) Testing glove elasticity
B) Electrical insulating test to ensure gloves are safe to use
C) Fit test
D) Cleanliness check
B) Electrical insulating test to ensure gloves are safe to use
Gloves must be tested regularly for electrical insulation integrity.
Certification Exam Questions And
Correct Answers (Verified Answers) Plus
Rationales 2025 Q&A | Instant
Download Pdf
1. What is the primary purpose of a utility line worker?
A) Design electrical systems
B) Repair and maintain electrical power lines
C) Manufacture electrical equipment
D) Inspect electrical wiring only
B) Repair and maintain electrical power lines
The main role of a utility line worker is to install, maintain, and repair
electrical power distribution and transmission lines.
2. Before climbing a utility pole, what must a line worker do first?
A) Inspect the weather forecast
B) Test the pole for stability
C) Obtain proper authorization and ensure power is off if required
D) Notify the customer
,C) Obtain proper authorization and ensure power is off if required
Safety protocols require that power is de-energized or proper clearance is
obtained before climbing to prevent electric shock.
3. What is the minimum approach distance a line worker should maintain
from a live conductor rated at 7,200 volts?
A) 2 feet
B) 5 feet
C) 10 feet
D) 20 feet
B) 5 feet
OSHA and utility safety standards specify minimum approach distances
depending on voltage levels; 5 feet is standard for 7,200 volts.
4. Which personal protective equipment (PPE) is essential when working
near energized lines?
A) Insulated gloves and sleeves
B) Hard hat and safety glasses
C) Hearing protection
D) Steel-toed boots only
A) Insulated gloves and sleeves
Insulated gloves and sleeves protect against electrical shock when working
near energized lines.
5. What type of test is used to check if a line is energized?
A) Voltage detector
B) Continuity tester
C) Circuit breaker
D) Ohmmeter
,A) Voltage detector
Voltage detectors help workers verify the presence or absence of voltage
on electrical lines.
6. When using a hot stick, what is its main purpose?
A) Measuring line length
B) Insulating the worker from electric shock
C) Digging around poles
D) Marking lines on the ground
B) Insulating the worker from electric shock
Hot sticks allow line workers to handle energized lines safely by
maintaining insulation distance.
7. What is a common cause of utility line failures?
A) Lightning strikes
B) Equipment aging
C) Vegetation contact
D) All of the above
D) All of the above
Lightning, aging equipment, and contact with vegetation are frequent
causes of line failures.
8. What is the best method to control vegetation near power lines?
A) Herbicide application without restrictions
B) Pruning and removing trees according to regulations
C) Leaving all vegetation as is
D) Burning vegetation under power lines
, B) Pruning and removing trees according to regulations
Proper pruning prevents vegetation from interfering with lines and causing
outages or hazards.
9. What type of ladder should never be used near energized lines?
A) Fiberglass ladder
B) Aluminum ladder
C) Wooden ladder
D) Plastic ladder
B) Aluminum ladder
Aluminum ladders conduct electricity and pose a serious shock hazard near
energized lines.
10. When working on a distribution transformer, what precaution
should be taken?
A) Wear hearing protection
B) Ensure the transformer is de-energized before servicing
C) Remove all PPE
D) Work without tools
B) Ensure the transformer is de-energized before servicing
De-energizing equipment before service prevents electrocution risks.
11. What is a “rubber glove test” for line workers?
A) Testing glove elasticity
B) Electrical insulating test to ensure gloves are safe to use
C) Fit test
D) Cleanliness check
B) Electrical insulating test to ensure gloves are safe to use
Gloves must be tested regularly for electrical insulation integrity.
