Lineman Apprentice Test questions and answers 2026\2027 A+
Grade
The difference in a 3 wire & 4 wire distribution circuit is?
- correct answer the Neutral wire
What is the formula for power
- correct answer P=VxI
Transmission voltage is generally _________ to _________.
- correct answer 138,000 to 765,000 volts
If the diameter of the pole to be set is 10", the diameter of the hole should be ____ to allow sufficient
room for tamping.
- correct answer 16", 3" on each side of the pole
What are the component parts of a distribution system?
- correct answer Distribution Substation, feeder circuits, switches, protective equipment, primary
circuits, distribution transformers, secondaries, services.
An advantage of a Wye Primary system over a Delta primary system is?
- correct answer Increased power carrying capacity, better voltage regulation
The total flow of current from a generating plant may be as large as __________ amps.
- correct answer 20,000
How many Amps does a 120 volt, 60 watt incandescent bulb draw?
- correct answer .5 amps, P=IxE I=P/E 60/120=.5
,Thury system was generators connected in ______ to transmit ________ amps at max voltage of
_______ volts?
- correct answer Series, 150 amps, 27,000 volts
An aluminum wire must be ________ times as big as copper is a cross section to have the same
conductivity.
- correct answer 1.66 (this means that aluminum is only 2/3 as conductive as copper)
Slices should not be installed ________ ft from a tie wire or armor rod.
- correct answer 1 ft (12")
Bolted connections may be used when?
- correct answer If the wires to be connected are not under tension
When splicing distribution wires, how far should the line be laid out straight before splicing?
- correct answer 10 ft
The head of a hydraulic operated tool weighs approximately ________ lbs.
- correct answer 15 lbs (tools operate w/ a pressure of 10,000 psi)
In the process of right of way clearing, trees and brush should receive a basil spray treatment not less
than ___ weeks before cutting to prevent regrowth.
- correct answer 2 weeks
A light should be located from _____ to _____ ft over the surface of a road, less than 40' wide and from
______ to ______ ft on roads more than 40' wide.
- correct answer 0-6 ft less than 40'
6-12 ft over 40'
When splicing Transmission conductors/wires, how far out should a conductor be laid in each direction
before splicing?
- correct answer 40 ft from joining point
, During CPR, do chest compressions circulate the same amount of blood as the heart does normally?
- correct answer Under best conditions, only 1/3 of normal flow is accomplished.
A _____ ft mast arm is used in alleys, a ________ ft mast arm is used in residential areas w/ streets less
than 40 ft wide, a _____ ft is used where streets are more than 40 ft wide and in industrial/ commercial
areas?
- correct answer 3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
What does MOV stand for?
- correct answer Metal Oxide Varistor
DC Transmission was initiated in ______ during the year _______
- correct answer Germany, 1883
What device changes AC to DC?
- correct answer Commutator (the process is called commutation)
The Maximum use voltage for class 3 gloves is _______ volts
- correct answer 26,500 volts
The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft _______, 45 and 50 ft
_______
- correct answer 6 (30 ft), 7 (35 ft), 8 (40 ft), 10 (45 &50 ft)
True or False- When applying a splice on wire, the wire should be straight for a distance of 10'
- correct answer True
Which 2 voltage types on Transmission lines require a corona shield?
- correct answer Extra and Ultra High Voltage (shields are at each point of conductor support)
Grade
The difference in a 3 wire & 4 wire distribution circuit is?
- correct answer the Neutral wire
What is the formula for power
- correct answer P=VxI
Transmission voltage is generally _________ to _________.
- correct answer 138,000 to 765,000 volts
If the diameter of the pole to be set is 10", the diameter of the hole should be ____ to allow sufficient
room for tamping.
- correct answer 16", 3" on each side of the pole
What are the component parts of a distribution system?
- correct answer Distribution Substation, feeder circuits, switches, protective equipment, primary
circuits, distribution transformers, secondaries, services.
An advantage of a Wye Primary system over a Delta primary system is?
- correct answer Increased power carrying capacity, better voltage regulation
The total flow of current from a generating plant may be as large as __________ amps.
- correct answer 20,000
How many Amps does a 120 volt, 60 watt incandescent bulb draw?
- correct answer .5 amps, P=IxE I=P/E 60/120=.5
,Thury system was generators connected in ______ to transmit ________ amps at max voltage of
_______ volts?
- correct answer Series, 150 amps, 27,000 volts
An aluminum wire must be ________ times as big as copper is a cross section to have the same
conductivity.
- correct answer 1.66 (this means that aluminum is only 2/3 as conductive as copper)
Slices should not be installed ________ ft from a tie wire or armor rod.
- correct answer 1 ft (12")
Bolted connections may be used when?
- correct answer If the wires to be connected are not under tension
When splicing distribution wires, how far should the line be laid out straight before splicing?
- correct answer 10 ft
The head of a hydraulic operated tool weighs approximately ________ lbs.
- correct answer 15 lbs (tools operate w/ a pressure of 10,000 psi)
In the process of right of way clearing, trees and brush should receive a basil spray treatment not less
than ___ weeks before cutting to prevent regrowth.
- correct answer 2 weeks
A light should be located from _____ to _____ ft over the surface of a road, less than 40' wide and from
______ to ______ ft on roads more than 40' wide.
- correct answer 0-6 ft less than 40'
6-12 ft over 40'
When splicing Transmission conductors/wires, how far out should a conductor be laid in each direction
before splicing?
- correct answer 40 ft from joining point
, During CPR, do chest compressions circulate the same amount of blood as the heart does normally?
- correct answer Under best conditions, only 1/3 of normal flow is accomplished.
A _____ ft mast arm is used in alleys, a ________ ft mast arm is used in residential areas w/ streets less
than 40 ft wide, a _____ ft is used where streets are more than 40 ft wide and in industrial/ commercial
areas?
- correct answer 3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
What does MOV stand for?
- correct answer Metal Oxide Varistor
DC Transmission was initiated in ______ during the year _______
- correct answer Germany, 1883
What device changes AC to DC?
- correct answer Commutator (the process is called commutation)
The Maximum use voltage for class 3 gloves is _______ volts
- correct answer 26,500 volts
The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft _______, 45 and 50 ft
_______
- correct answer 6 (30 ft), 7 (35 ft), 8 (40 ft), 10 (45 &50 ft)
True or False- When applying a splice on wire, the wire should be straight for a distance of 10'
- correct answer True
Which 2 voltage types on Transmission lines require a corona shield?
- correct answer Extra and Ultra High Voltage (shields are at each point of conductor support)
