Certified Power Lineman Journeyman
Licensing Exam LATEST VERSION WITH 300
QUESTIONS AND CORRECT DETAILED
SOLUTIONS JUST RELEASED THIS YEAR
1. What is the primary purpose of a fuse in a power system?
A) Increase voltage
B) Store electrical energy
C) Protect circuits from overcurrent
D) Regulate frequency
Answer: C
A fuse interrupts excessive current to prevent damage to equipment and wiring.
2. Which unit measures electrical current?
A) Volt
B) Ohm
C) Watt
D) Ampere
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Answer: D
Amperes measure the flow of electric charge in a circuit.
3. What tool is used to measure voltage in a circuit?
A) Clamp meter
B) Ohmmeter
C) Voltmeter
D) Tachometer
Answer: C
A voltmeter measures electrical potential difference between two points.
4. What is the function of a transformer?
A) Store energy
B) Convert AC to DC
C) Change voltage levels
D) Increase resistance
Answer: C
Transformers step voltage up or down in AC systems through electromagnetic induction.
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5. What type of current flows in one direction only?
A) AC
B) DC
C) Polyphase
D) Alternating pulse
Answer: B
Direct current flows in a single, constant direction.
6. What is the standard frequency of power systems in North America?
A) 25 Hz
B) 40 Hz
C) 60 Hz
D) 100 Hz
Answer: C
North American electrical grids operate at 60 Hz frequency.
7. What safety device is used to protect linemen from electrical shock?
A) Rubber boots
B) Hard hat
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C) Insulated gloves
D) Safety glasses
Answer: C
Insulated gloves reduce the risk of electrical contact injury when working on or near energized
lines.
8. What does PPE stand for?
A) Power Protection Equipment
B) Primary Power Engine
C) Personal Protective Equipment
D) Primary Power Equipment
Answer: C
PPE refers to gear used to protect workers from workplace hazards.
9. What is a primary function of a substation?
A) Generate electricity
B) Regulate and distribute electrical power
C) Store fuel
D) Increase frequency
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