2-5-13

Question 1

One-reason rubber gloves must be worn when conducting an inspection of an underground system during an outage is because __?__.

Answer 1

back feed may exist

Question 2

Animals never burrow into pad mounted transformers or switchgear.

Answer 2

false

Question 3

Test reclosing of a switch or fuse when an underground fault has taken place as a method of locating a fault should be a(n) __?__ procedure.

Answer 3

authorized

Question 4

In order to get half of the customers back on when troubleshooting an underground radial feed system, the elbows at the __?__ of the system are placed in standoff position and the cutout feeding the section of the system is closed in.

Answer 4

center point

Question 5

When a fault exists on an underground system but you have power up to a standoff elbow, you can leave the exit cable on standoff and energize the transformer by hand, while wearing rubber gloves.

Answer 5

false

Question 6

A device that points the way to the general area of a fault on an underground system is a(n) __?__.

Answer 6

fault circuit indicator

Question 7

A fault-circuit indicator is designed to activate a signal at a preset over-voltage level

Answer 7

false

Question 8

Your first stop when responding to an outage on an underground system should be at the __?__.

Answer 8

take off

Question 9

According to this lesson, you should not reenergize an underground system at the riser pole and try it one time as you might with an overhead system because of public accessibility to equipment.

Answer 9

true

Question 10

While waiting for help to arrive with an outage on an underground system, a __?__ inspection can be carried out.

Answer 10

drive through

Question 11

One critical element when troubleshooting an underground system is having up-to-date maps.

Answer 11

true

Question 12

Two things to look for when doing an underground system drive through inspection is damage to equipment and evidence of a(n) __?__

Answer 12

dig in

Question 13

One reason for a cable to fault may be that it has been in the ground a long time.

Answer 13

true

Question 14

Cable treeing is mainly caused by water containing __?__ being in contact with the cable over a long period of time.

Answer 14

contaminats

Question 15

When drain tapes or wires corrode, the __?__ current will arc across the gap and cause the insulation to fail.

Answer 15

charging

Question 16

To keep rocks from being pushed into an underground cable by the pressure of the backfill, the cable should lay on __?__ of sand and the same depth of sand cover it.

Answer 16

4”

Question 17

Sidewall pressure damage to a cable is a concern during installation operations.

Answer 17

true

Question 18

A __?__ is used to verify that the cable to be worked on is the correct one by putting a direct ground on it.

Answer 18

grounding spike

Question 19

Rubber gloves must be worn when working with underground cable until it is proven deenergized and grounded.

Answer 19

true

Question 20

The number one cause of power cable failure over which a Lineman has control over is __?__ during terminating, splicing, or installation.

Answer 20

poor workmanship