Apprentice Lineman Exam Complete
Questions And Verified Answers ||
TopScorers
\.The difference in a 3 wire & 4 wire distribution circuit is?
the Neutral wire
\.What is the formula for power
P=IE
E=IR
\.Transmission voltage is generally _________ to _________.
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.
16", 3" on each side of the pole
\.What are the component parts of a distribution system?
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?
Increased power carrying capacity, better voltage regulation
\.The total flow of current from a generating plant may be as large as __________ amps.
20,000
\.How many Amps does a 120 volt, 60 watt incandescent bulb draw?
,.5 amps, P=IxE I=P/E 60/120=.5
\.Thury system was generators connected in ______ to transmit ________ amps at max
voltage of _______ volts?
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.
1.66 (this means that aluminum is only 2/3 as conductive as copper)
\.Splices should not be installed ________ ft from a tie wire or armor rod.
1 ft (12")
\.Bolted connections may be used when?
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?
10 ft
\.The head of a hydraulic operated tool weighs approximately ________ lbs.
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.
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.
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?
40 ft from joining point
\.During CPR, do chest compressions circulate the same amount of blood as the heart does
normally?
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?
3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
\,What does MOV stand for?
Metal Oxide Varistor
\.DC Transmission was initiated in ______ during the year _______
Germany, 1883
\.What device changes AC to DC?
Commutator (the process is called commutation)
\.The Maximum use voltage for class 3 gloves is _______ volts
26,500 volts
\.The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft _______, 45
and 50 ft _______
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'
True
\.Which 2 voltage types on Transmission lines require a corona shield?
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.
Low
\.XLPE=______
Cross linked polyethylene
\.EPR=_________
Ethylene, Propylene, Rubber
Questions And Verified Answers ||
TopScorers
\.The difference in a 3 wire & 4 wire distribution circuit is?
the Neutral wire
\.What is the formula for power
P=IE
E=IR
\.Transmission voltage is generally _________ to _________.
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.
16", 3" on each side of the pole
\.What are the component parts of a distribution system?
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?
Increased power carrying capacity, better voltage regulation
\.The total flow of current from a generating plant may be as large as __________ amps.
20,000
\.How many Amps does a 120 volt, 60 watt incandescent bulb draw?
,.5 amps, P=IxE I=P/E 60/120=.5
\.Thury system was generators connected in ______ to transmit ________ amps at max
voltage of _______ volts?
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.
1.66 (this means that aluminum is only 2/3 as conductive as copper)
\.Splices should not be installed ________ ft from a tie wire or armor rod.
1 ft (12")
\.Bolted connections may be used when?
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?
10 ft
\.The head of a hydraulic operated tool weighs approximately ________ lbs.
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.
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.
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?
40 ft from joining point
\.During CPR, do chest compressions circulate the same amount of blood as the heart does
normally?
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?
3 ft alleys
6 ft residential <40 ft
12 ft industrial >40 ft
\,What does MOV stand for?
Metal Oxide Varistor
\.DC Transmission was initiated in ______ during the year _______
Germany, 1883
\.What device changes AC to DC?
Commutator (the process is called commutation)
\.The Maximum use voltage for class 3 gloves is _______ volts
26,500 volts
\.The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft _______, 45
and 50 ft _______
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'
True
\.Which 2 voltage types on Transmission lines require a corona shield?
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.
Low
\.XLPE=______
Cross linked polyethylene
\.EPR=_________
Ethylene, Propylene, Rubber
