APPRENTICE LINEMAN YEAR 3 EXAM
QUESTIONS AND ANSWERS
Select the three common types of URD Systems - Correct Answers -Double Feed,
Radial Feed, and Loop Feed
True or False: A URD system is usually connected to the overhead primary distribution
lines at a cable or riser pole. - Correct Answers -True
True or False: Customers using three-phase equipment on a URD system must be
powered by a set of three-phase conductors separate from the rest of the URD. -
Correct Answers -False
True or False: A loop feed system can be converted into an open loop system by
opening any switching point of the system. - Correct Answers -True
True or False: An open loop system is the same as two radial feed systems that have
the capability to be joined. - Correct Answers -True
A _____________ protects a URD system from over-voltages. - Correct Answers -
Surge Arrestor
A pad-mounted switch that connects a URD system to an underground feeder cable is
called a - Correct Answers -Transclosure
Select the types of equipment often found on cable poles. - Correct Answers -Surge
protectors, pothead, disconnect switches, and fuses.
True or False: Dead-front transformers are fully insulated and can be switched by a
lineman using rubber gloves. - Correct Answers -False
Select the three types of transformer installations in URD systems. - Correct Answers -
Direct-buried, pad-mounted, subsurface.
True or False: Tap holes are used to energize and de-energize transformers - Correct
Answers -False
True or False: URD cable is often made of softer alloys then overhead cable. - Correct
Answers -True
,One a large customer of three-phase power is associated with a URD system, the
system may be fed directly from a ___________ through an underground feeder. -
Correct Answers -Substation
What are the functions of a pothead? - Correct Answers -Terminate the URD cable
insulation, Provide the connection between overhead cable and URD cable
True or False: URD cable can be installed in the same trench with other types of cable
and utilities. - Correct Answers -True
When a URD cable must go under a building, a parking lot, or a street, it is often
installed in _________ to make replacing the cable easier. - Correct Answers -Conduit
Before opening a pad-mounted transformer, a Lineman should perform a __________
to make sure all equipment appears safe. - Correct Answers -Visual Inspection
True or False: during a transformer inspection, a lineman uses a system diagram to tag
all unmarked cables. - Correct Answers -False
True or False: at a pad-mounted switch, a lineman checks the position of each switch
against the system diagram and returns each switch to the correct position. - Correct
Answers -False
__________ allow several different cables to be connected at one point. - Correct
Answers -Terminal Strips
Which of the following can be a valuable source of information during troubleshooting? -
Correct Answers -The troubleman's experience, customers and eyewitnesses, and a
dispatcher
True or False: if only one customer loses power, while other surrounding customers
have normal service, troubleshooting should begin by checking the main feeder. -
Correct Answers -False
Which of the following is NOT a method of locating a problem? - Correct Answers -
Documenting
True or False: troubleshooting ends as soon as a problem is located. - Correct Answers
-False
True or False: patrolling is scheduled only when specific problems have been reported
on a line. - Correct Answers -False
A Troubleman should always treat lines and equipment as if they are _____________. -
Correct Answers -Energized
, Problems on overhead distribution lines can be related to - Correct Answers -Hardware,
wires, poles, equipment
True or False: safety is an important part of troubleshooting - Correct Answers -True
Which of the following can be used by a Troubleman to establish his location? - Correct
Answers -Pole identification numbers, street addresses, landmarks
The dispatcher may provide a Troubleman with clearance, instructions, and other
information. - Correct Answers -True
A common troubleshooting safety practices verifying information by - Correct Answers -
Reading all information back to the dispatcher, writing down the dispatchers instructions
True or False: before performing any work on on a line, a Troubleman should know
what the results of the work will be - Correct Answers -True
A line may be sectionalized by opening - Correct Answers -A gang-operated air switch,
a fused cutout, a recloser
True or False: cutting a jumper is a way of sectionalizing a line - Correct Answers -True
A line break is usually installed when - Correct Answers -There is no convenient switch
to open, there is no convenient place to remove a hot tap or cut a jumper
Using the following illustration, if trouble on the line causes a substation circuit breaker
to open, one logical place to begin patrolling for the problem is - Correct Answers -
Between the circuit breaker and the first switch
Using the following illustration, if a portion of the sectionalized primary line is re-
energized, and remains energized then - Correct Answers -That section may have no
problem
True or False: phase-to-ground voltage is tested by connecting both voltage tester
probes to the ground terminal - Correct Answers -False
If two customers are serviced by the same distribution transformer, and both are without
service, the problem is likely to be - Correct Answers -In the secondary main, the
transformer, or before the transformer
With the transformer fuse intact, a no voltage output reading at a distribution
transformer could indicate - Correct Answers -A problem somewhere in the source
circuit, a problem somewhere in the transformer
QUESTIONS AND ANSWERS
Select the three common types of URD Systems - Correct Answers -Double Feed,
Radial Feed, and Loop Feed
True or False: A URD system is usually connected to the overhead primary distribution
lines at a cable or riser pole. - Correct Answers -True
True or False: Customers using three-phase equipment on a URD system must be
powered by a set of three-phase conductors separate from the rest of the URD. -
Correct Answers -False
True or False: A loop feed system can be converted into an open loop system by
opening any switching point of the system. - Correct Answers -True
True or False: An open loop system is the same as two radial feed systems that have
the capability to be joined. - Correct Answers -True
A _____________ protects a URD system from over-voltages. - Correct Answers -
Surge Arrestor
A pad-mounted switch that connects a URD system to an underground feeder cable is
called a - Correct Answers -Transclosure
Select the types of equipment often found on cable poles. - Correct Answers -Surge
protectors, pothead, disconnect switches, and fuses.
True or False: Dead-front transformers are fully insulated and can be switched by a
lineman using rubber gloves. - Correct Answers -False
Select the three types of transformer installations in URD systems. - Correct Answers -
Direct-buried, pad-mounted, subsurface.
True or False: Tap holes are used to energize and de-energize transformers - Correct
Answers -False
True or False: URD cable is often made of softer alloys then overhead cable. - Correct
Answers -True
,One a large customer of three-phase power is associated with a URD system, the
system may be fed directly from a ___________ through an underground feeder. -
Correct Answers -Substation
What are the functions of a pothead? - Correct Answers -Terminate the URD cable
insulation, Provide the connection between overhead cable and URD cable
True or False: URD cable can be installed in the same trench with other types of cable
and utilities. - Correct Answers -True
When a URD cable must go under a building, a parking lot, or a street, it is often
installed in _________ to make replacing the cable easier. - Correct Answers -Conduit
Before opening a pad-mounted transformer, a Lineman should perform a __________
to make sure all equipment appears safe. - Correct Answers -Visual Inspection
True or False: during a transformer inspection, a lineman uses a system diagram to tag
all unmarked cables. - Correct Answers -False
True or False: at a pad-mounted switch, a lineman checks the position of each switch
against the system diagram and returns each switch to the correct position. - Correct
Answers -False
__________ allow several different cables to be connected at one point. - Correct
Answers -Terminal Strips
Which of the following can be a valuable source of information during troubleshooting? -
Correct Answers -The troubleman's experience, customers and eyewitnesses, and a
dispatcher
True or False: if only one customer loses power, while other surrounding customers
have normal service, troubleshooting should begin by checking the main feeder. -
Correct Answers -False
Which of the following is NOT a method of locating a problem? - Correct Answers -
Documenting
True or False: troubleshooting ends as soon as a problem is located. - Correct Answers
-False
True or False: patrolling is scheduled only when specific problems have been reported
on a line. - Correct Answers -False
A Troubleman should always treat lines and equipment as if they are _____________. -
Correct Answers -Energized
, Problems on overhead distribution lines can be related to - Correct Answers -Hardware,
wires, poles, equipment
True or False: safety is an important part of troubleshooting - Correct Answers -True
Which of the following can be used by a Troubleman to establish his location? - Correct
Answers -Pole identification numbers, street addresses, landmarks
The dispatcher may provide a Troubleman with clearance, instructions, and other
information. - Correct Answers -True
A common troubleshooting safety practices verifying information by - Correct Answers -
Reading all information back to the dispatcher, writing down the dispatchers instructions
True or False: before performing any work on on a line, a Troubleman should know
what the results of the work will be - Correct Answers -True
A line may be sectionalized by opening - Correct Answers -A gang-operated air switch,
a fused cutout, a recloser
True or False: cutting a jumper is a way of sectionalizing a line - Correct Answers -True
A line break is usually installed when - Correct Answers -There is no convenient switch
to open, there is no convenient place to remove a hot tap or cut a jumper
Using the following illustration, if trouble on the line causes a substation circuit breaker
to open, one logical place to begin patrolling for the problem is - Correct Answers -
Between the circuit breaker and the first switch
Using the following illustration, if a portion of the sectionalized primary line is re-
energized, and remains energized then - Correct Answers -That section may have no
problem
True or False: phase-to-ground voltage is tested by connecting both voltage tester
probes to the ground terminal - Correct Answers -False
If two customers are serviced by the same distribution transformer, and both are without
service, the problem is likely to be - Correct Answers -In the secondary main, the
transformer, or before the transformer
With the transformer fuse intact, a no voltage output reading at a distribution
transformer could indicate - Correct Answers -A problem somewhere in the source
circuit, a problem somewhere in the transformer
