Lineman Apprentice Test FREQUENTLY TESTED
ACTUAL EXAM QUESTIONS WITH CORRECT ANSWERS
Question 1.
The difference in a 3 wire & 4 wire distribution circuit is?
ANSWER
the Neutral wire
Question 2.
What is the formula for power
ANSWER
P=VxI
Question 3.
Transmission voltage is generally _________ to _________.
ANSWER
138,000 to 765,000 volts
Question 4.
If the diameter of the pole to be set is 10", the diameter of the hole should be ____ to allow sufficient
room for tamping.
ANSWER
16", 3" on each side of the pole
Question 5.
What are the component parts of a distribution system?
ANSWER
Distribution Substation, feeder circuits, switches, protective equipment, primary circuits,
distribution transformers, secondaries, services.
,Question 6.
An advantage of a Wye Primary system over a Delta primary system is?
ANSWER
Increased power carry-
ing capacity, better voltage regulation
Question 7.
The total flow of current from a generating plant may be as large as __________ amps.
ANSWER
20,000
Question 8.
How many Amps does a 120 volt, 60 watt incandescent bulb draw?
ANSWER
.5 amps, P=IxE I=P/E 60/120=.5
Question 9.
Thury system was generators connected in ______
to transmit ________ amps at max voltage of _______ volts?
ANSWER
Series, 150 amps, 27,000 volts
Question 10.
An aluminum wire must be ________ times as big as copper is a cross section to have the same
conductivity.
ANSWER
1.66 (this means that aluminum is only 2/3 as conductive as copper)
Question 11.
Slices should not be installed ________ ft from a tie wire or armor rod.
ANSWER
1 ft (12")
,Question 12.
Bolted connections may be used when?
ANSWER
If the wires to be connected are not under tension
Question 13.
When splicing distribution wires, how far should the line be laid out straight before splicing?
ANSWER
10 ft
Question 14.
The head of a hydraulic operated tool weighs approximately ________ lbs.
ANSWER
15 lbs (tools operate w/ a pressure of 10,000 psi)
Question 15.
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.
ANSWER
2 weeks
Question 16.
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.
ANSWER
0-6 ft less than 40'
6-12 ft over 40'
, Question 17.
When splicing Transmission conductors/wires, how far out should a conductor be laid in each direction
before splicing?
ANSWER
40 ft from joining point
Question 18.
During CPR, do chest compressions circulate the same amount of blood as the heart does normally?
ANSWER
Under best conditions, only 1/3 of normal flow is accomplished.
Question 19.
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?
ANSWER
i. 3 ft alleys
ii. 6 ft residential <40 ft
iii. 12 ft industrial >40 ft
Question 20.
What does MOV stand for?
ANSWER
Metal Oxide Varistor
Question 21.
DC Transmission was initiated in ______ during the year _______
ANSWER
Germany, 1883
ACTUAL EXAM QUESTIONS WITH CORRECT ANSWERS
Question 1.
The difference in a 3 wire & 4 wire distribution circuit is?
ANSWER
the Neutral wire
Question 2.
What is the formula for power
ANSWER
P=VxI
Question 3.
Transmission voltage is generally _________ to _________.
ANSWER
138,000 to 765,000 volts
Question 4.
If the diameter of the pole to be set is 10", the diameter of the hole should be ____ to allow sufficient
room for tamping.
ANSWER
16", 3" on each side of the pole
Question 5.
What are the component parts of a distribution system?
ANSWER
Distribution Substation, feeder circuits, switches, protective equipment, primary circuits,
distribution transformers, secondaries, services.
,Question 6.
An advantage of a Wye Primary system over a Delta primary system is?
ANSWER
Increased power carry-
ing capacity, better voltage regulation
Question 7.
The total flow of current from a generating plant may be as large as __________ amps.
ANSWER
20,000
Question 8.
How many Amps does a 120 volt, 60 watt incandescent bulb draw?
ANSWER
.5 amps, P=IxE I=P/E 60/120=.5
Question 9.
Thury system was generators connected in ______
to transmit ________ amps at max voltage of _______ volts?
ANSWER
Series, 150 amps, 27,000 volts
Question 10.
An aluminum wire must be ________ times as big as copper is a cross section to have the same
conductivity.
ANSWER
1.66 (this means that aluminum is only 2/3 as conductive as copper)
Question 11.
Slices should not be installed ________ ft from a tie wire or armor rod.
ANSWER
1 ft (12")
,Question 12.
Bolted connections may be used when?
ANSWER
If the wires to be connected are not under tension
Question 13.
When splicing distribution wires, how far should the line be laid out straight before splicing?
ANSWER
10 ft
Question 14.
The head of a hydraulic operated tool weighs approximately ________ lbs.
ANSWER
15 lbs (tools operate w/ a pressure of 10,000 psi)
Question 15.
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.
ANSWER
2 weeks
Question 16.
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.
ANSWER
0-6 ft less than 40'
6-12 ft over 40'
, Question 17.
When splicing Transmission conductors/wires, how far out should a conductor be laid in each direction
before splicing?
ANSWER
40 ft from joining point
Question 18.
During CPR, do chest compressions circulate the same amount of blood as the heart does normally?
ANSWER
Under best conditions, only 1/3 of normal flow is accomplished.
Question 19.
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?
ANSWER
i. 3 ft alleys
ii. 6 ft residential <40 ft
iii. 12 ft industrial >40 ft
Question 20.
What does MOV stand for?
ANSWER
Metal Oxide Varistor
Question 21.
DC Transmission was initiated in ______ during the year _______
ANSWER
Germany, 1883
