LINEMAN APPRENTICE TEST
QUESTIONS AND ANSWERS
The difference in a 3 wire & 4 wire distribution circuit is? - Correct Answers -the Neutral
wire
What is the formula for power - Correct Answers -P=VxI
Transmission voltage is generally _________ to _________. - Correct Answers -
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 Answers -16", 3" on each side of the pole
What are the component parts of a distribution system? - Correct Answers -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
Answers -Increased power carrying capacity, better voltage regulation
The total flow of current from a generating plant may be as large as __________ amps.
- Correct Answers -20,000
How many Amps does a 120 volt, 60 watt incandescent bulb draw? - Correct Answers -
.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 Answers -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 Answers -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
Answers -1 ft (12")
Bolted connections may be used when? - Correct Answers -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 Answers -10 ft
The head of a hydraulic operated tool weighs approximately ________ lbs. - Correct
Answers -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
Answers -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 Answers
-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 Answers -40 ft from joining point
During CPR, do chest compressions circulate the same amount of blood as the heart
does normally? - Correct Answers -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 Answers -3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
What does MOV stand for? - Correct Answers -Metal Oxide Varistor
DC Transmission was initiated in ______ during the year _______ - Correct Answers -
Germany, 1883
What device changes AC to DC? - Correct Answers -Commutator (the process is called
commutation)
The Maximum use voltage for class 3 gloves is _______ volts - Correct Answers -
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 Answers -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 Answers -True
QUESTIONS AND ANSWERS
The difference in a 3 wire & 4 wire distribution circuit is? - Correct Answers -the Neutral
wire
What is the formula for power - Correct Answers -P=VxI
Transmission voltage is generally _________ to _________. - Correct Answers -
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 Answers -16", 3" on each side of the pole
What are the component parts of a distribution system? - Correct Answers -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
Answers -Increased power carrying capacity, better voltage regulation
The total flow of current from a generating plant may be as large as __________ amps.
- Correct Answers -20,000
How many Amps does a 120 volt, 60 watt incandescent bulb draw? - Correct Answers -
.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 Answers -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 Answers -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
Answers -1 ft (12")
Bolted connections may be used when? - Correct Answers -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 Answers -10 ft
The head of a hydraulic operated tool weighs approximately ________ lbs. - Correct
Answers -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
Answers -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 Answers
-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 Answers -40 ft from joining point
During CPR, do chest compressions circulate the same amount of blood as the heart
does normally? - Correct Answers -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 Answers -3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
What does MOV stand for? - Correct Answers -Metal Oxide Varistor
DC Transmission was initiated in ______ during the year _______ - Correct Answers -
Germany, 1883
What device changes AC to DC? - Correct Answers -Commutator (the process is called
commutation)
The Maximum use voltage for class 3 gloves is _______ volts - Correct Answers -
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 Answers -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 Answers -True
