Lineman Apprenticeship Test Exam
UPDATED Study QUESTIONS AND
CORRECT ANSWERS
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)
A ground rod that penetrates perpetually moist earth will have a fairly ________ resistance. -
CORRECT ANSWER Low
XLPE=______ - CORRECT ANSWER Cross linked polyethylene
UPDATED Study QUESTIONS AND
CORRECT ANSWERS
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)
A ground rod that penetrates perpetually moist earth will have a fairly ________ resistance. -
CORRECT ANSWER Low
XLPE=______ - CORRECT ANSWER Cross linked polyethylene
