APPRENTICE LINEMAN YEAR 3 EXAM 2025/2026 QUESTIONS AND ANSWERS 100% PASS

APPRENTICE LINEMAN YEAR 3 EXAM
2025/2026 QUESTIONS AND ANSWERS
100% PASS




Select the three common types of URD Systems - ANS 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. - ANS 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. - ANS False


True or False: A loop feed system can be converted into an open loop system by opening any
switching point of the system. - ANS True


True or False: An open loop system is the same as two radial feed systems that have the
capability to be joined. - ANS True



A _____________ protects a URD system from over-voltages. - ANS Surge Arrestor




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,A pad-mounted switch that connects a URD system to an underground feeder cable is called a -
ANS Transclosure



Select the types of equipment often found on cable poles. - ANS 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. - ANS False



Select the three types of transformer installations in URD systems. - ANS Direct-buried, pad-
mounted, subsurface.



True or False: Tap holes are used to energize and de-energize transformers - ANS False



True or False: URD cable is often made of softer alloys then overhead cable. - ANS 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. - ANS Substation



What are the functions of a pothead? - ANS 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. - ANS 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. - ANS Conduit




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, Before opening a pad-mounted transformer, a Lineman should perform a __________ to make
sure all equipment appears safe. - ANS Visual Inspection


True or False: during a transformer inspection, a lineman uses a system diagram to tag all
unmarked cables. - ANS 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. - ANS False



__________ allow several different cables to be connected at one point. - ANS Terminal
Strips


Which of the following can be a valuable source of information during troubleshooting? -
ANS 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. - ANS False



Which of the following is NOT a method of locating a problem? - ANS Documenting



True or False: troubleshooting ends as soon as a problem is located. - ANS False


True or False: patrolling is scheduled only when specific problems have been reported on a line.
- ANS False


A Troubleman should always treat lines and equipment as if they are _____________. -
ANS Energized




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