Lineman Apprentice Test questions with verified
answers
The difference in a 3 wire & 4 wire distribution circuit is? Ans✔✔-the Neutral wire
What is the formula for power Ans✔✔-P=VxI
Transmission voltage is generally _________ to _________. Ans✔✔-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. Ans✔✔-16", 3" on each side of the
pole
What are the component parts of a distribution system? Ans✔✔-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? Ans✔✔-
Increased power carrying capacity, better voltage regulation
The total flow of current from a generating plant may be as large as __________
amps. Ans✔✔-20,000
How many Amps does a 120 volt, 60 watt incandescent bulb draw? Ans✔✔-.5
amps, P=IxE I=P/E 60/120=.5
,Thury system was generators connected in ______ to transmit ________ amps at
max voltage of _______ volts? Ans✔✔-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. Ans✔✔-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. Ans✔✔-1
ft (12")
Bolted connections may be used when? Ans✔✔-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? Ans✔✔-10 ft
The head of a hydraulic operated tool weighs approximately ________ lbs.
Ans✔✔-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. Ans✔✔-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.
Ans✔✔-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? Ans✔✔-40 ft from joining point
During CPR, do chest compressions circulate the same amount of blood as the
heart does normally? Ans✔✔-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? Ans✔✔-3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
What does MOV stand for? Ans✔✔-Metal Oxide Varistor
DC Transmission was initiated in ______ during the year _______ Ans✔✔-
Germany, 1883
What device changes AC to DC? Ans✔✔-Commutator (the process is called
commutation)
The Maximum use voltage for class 3 gloves is _______ volts Ans✔✔-26,500 volts
The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft
_______, 45 and 50 ft _______ Ans✔✔-6 (30 ft), 7 (35 ft), 8 (40 ft), 10 (45 &50 ft)
answers
The difference in a 3 wire & 4 wire distribution circuit is? Ans✔✔-the Neutral wire
What is the formula for power Ans✔✔-P=VxI
Transmission voltage is generally _________ to _________. Ans✔✔-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. Ans✔✔-16", 3" on each side of the
pole
What are the component parts of a distribution system? Ans✔✔-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? Ans✔✔-
Increased power carrying capacity, better voltage regulation
The total flow of current from a generating plant may be as large as __________
amps. Ans✔✔-20,000
How many Amps does a 120 volt, 60 watt incandescent bulb draw? Ans✔✔-.5
amps, P=IxE I=P/E 60/120=.5
,Thury system was generators connected in ______ to transmit ________ amps at
max voltage of _______ volts? Ans✔✔-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. Ans✔✔-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. Ans✔✔-1
ft (12")
Bolted connections may be used when? Ans✔✔-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? Ans✔✔-10 ft
The head of a hydraulic operated tool weighs approximately ________ lbs.
Ans✔✔-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. Ans✔✔-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.
Ans✔✔-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? Ans✔✔-40 ft from joining point
During CPR, do chest compressions circulate the same amount of blood as the
heart does normally? Ans✔✔-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? Ans✔✔-3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
What does MOV stand for? Ans✔✔-Metal Oxide Varistor
DC Transmission was initiated in ______ during the year _______ Ans✔✔-
Germany, 1883
What device changes AC to DC? Ans✔✔-Commutator (the process is called
commutation)
The Maximum use voltage for class 3 gloves is _______ volts Ans✔✔-26,500 volts
The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft
_______, 45 and 50 ft _______ Ans✔✔-6 (30 ft), 7 (35 ft), 8 (40 ft), 10 (45 &50 ft)
