Apprentice Lineman Year 3 UPDATED ACTUAL Questions And CORRECT Answers

Apprentice Lineman Year 3 UPDATED
ACTUAL Questions And CORRECT
Answers
Select the three common types of URD Systems - CORRECT 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. - CORRECT 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. - CORRECT 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. - CORRECT ANSWER - True


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



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


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



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

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


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


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



What are the functions of a pothead? - CORRECT 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. - CORRECT 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. - CORRECT ANSWER - Conduit


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


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


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


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



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


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


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


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



Problems on overhead distribution lines can be related to - CORRECT ANSWER -
Hardware, wires, poles, equipment


True or False: safety is an important part of troubleshooting - CORRECT ANSWER -
True