Apprentice Lineman Year 3 Exam
Complete Questions And Verified
Answers
\.Select the three common types of URD Systems - Answer- 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. - Answer- 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. - Answer- False
\.True or False: A loop feed system can be converted into an open loop system by opening any
switching point of the system. - Answer- True
\.True or False: An open loop system is the same as two radial feed systems that have the
capability to be joined. - Answer- True
\.A _____________ protects a URD system from over-voltages. - Answer- Surge Arrestor
\.A pad-mounted switch that connects a URD system to an underground feeder cable is called a
- Answer- Transclosure
,\.Select the types of equipment often found on cable poles. - Answer- 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. - Answer- False
\.Select the three types of transformer installations in URD systems. - Answer- Direct-buried,
pad-mounted, subsurface.
\.True or False: Tap holes are used to energize and de-energize transformers - Answer- False
\.True or False: URD cable is often made of softer alloys then overhead cable. - Answer- 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. - Answer- Substation
\.What are the functions of a pothead? - Answer- 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. - Answer- 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. - Answer- Conduit
\.Before opening a pad-mounted transformer, a Lineman should perform a __________ to make
sure all equipment appears safe. - Answer- Visual Inspection
, \.True or False: during a transformer inspection, a lineman uses a system diagram to tag all
unmarked cables. - Answer- 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. - Answer- False
\.__________ allow several different cables to be connected at one point. - Answer- Terminal
Strips
\.Which of the following can be a valuable source of information during troubleshooting? -
Answer- 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. - Answer- False
\.Which of the following is NOT a method of locating a problem? - Answer- Documenting
\.True or False: troubleshooting ends as soon as a problem is located. - Answer- False
\.True or False: patrolling is scheduled only when specific problems have been reported on a
line. - Answer- False
\.A Troubleman should always treat lines and equipment as if they are _____________. -
Answer- Energized
\.Problems on overhead distribution lines can be related to - Answer- Hardware, wires, poles,
equipment
Complete Questions And Verified
Answers
\.Select the three common types of URD Systems - Answer- 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. - Answer- 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. - Answer- False
\.True or False: A loop feed system can be converted into an open loop system by opening any
switching point of the system. - Answer- True
\.True or False: An open loop system is the same as two radial feed systems that have the
capability to be joined. - Answer- True
\.A _____________ protects a URD system from over-voltages. - Answer- Surge Arrestor
\.A pad-mounted switch that connects a URD system to an underground feeder cable is called a
- Answer- Transclosure
,\.Select the types of equipment often found on cable poles. - Answer- 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. - Answer- False
\.Select the three types of transformer installations in URD systems. - Answer- Direct-buried,
pad-mounted, subsurface.
\.True or False: Tap holes are used to energize and de-energize transformers - Answer- False
\.True or False: URD cable is often made of softer alloys then overhead cable. - Answer- 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. - Answer- Substation
\.What are the functions of a pothead? - Answer- 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. - Answer- 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. - Answer- Conduit
\.Before opening a pad-mounted transformer, a Lineman should perform a __________ to make
sure all equipment appears safe. - Answer- Visual Inspection
, \.True or False: during a transformer inspection, a lineman uses a system diagram to tag all
unmarked cables. - Answer- 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. - Answer- False
\.__________ allow several different cables to be connected at one point. - Answer- Terminal
Strips
\.Which of the following can be a valuable source of information during troubleshooting? -
Answer- 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. - Answer- False
\.Which of the following is NOT a method of locating a problem? - Answer- Documenting
\.True or False: troubleshooting ends as soon as a problem is located. - Answer- False
\.True or False: patrolling is scheduled only when specific problems have been reported on a
line. - Answer- False
\.A Troubleman should always treat lines and equipment as if they are _____________. -
Answer- Energized
\.Problems on overhead distribution lines can be related to - Answer- Hardware, wires, poles,
equipment
