Lesson 10

Question 1

Everyone, except qualified employees, must stay at least ? from apparatus energized up to 50,000 volts.

Select one:

a. 4’
b. 6’
c. 8’
d. 10’

Answer 1

d. 10’

Question 2

A qualified worker must be trained and have the ability to recognize ? .

Select one:

a. energized parts
b. grounded lines
c. hazardous situations
d. various protective devices

Answer 2

a. energized parts

Question 3

A qualified individual understands that all conductors must be ? .

Select one:

a. considered energized until proven to be otherwise
b. grounded before testing for voltage
c. tested for continuity before energizing
d. tested twice to verify voltage

Answer 3

a. considered energized until proven to be otherwise

Question 4

The normal operating voltage of electrical equipment must be determined by workers   ?  .
Select one:
a. before work begins 
b. from previous knowledge 
c. when it is convenient to do so 
d. while work is in progress

Answer 4

a. before work begins

Question 5

Objects that are (insulated) from ground are ? .

Select one:

a. conductive and can be expected to be energized
b. considered grounded
c. protected from an overvoltage event
d. safe to handle

Answer 5

a. conductive and can be expected to be energized

Question 6

Conductors are the part of an electrical system that carries electrical current.

Select one:
True
False

Answer 6

True

Question 7

Electrical circuits may be in a(n) ? configuration.

Select one:

a. conductive
b. inductive or capacitive
c. transformation
d. wye or delta

Answer 7

d. wye or delta

Question 8

The neutral conductors are normally connected to the ? .

Select one:

a. ground
b. guy wires
c. insulators
d. lightning arresters

Answer 8

a. ground

Question 9

The parts of an electrical system used to isolate conductive (energized) material from other parts are called ? .

Select one:

a. grounded devices
b. insulators
c. protective devices
d. stand offs

Answer 9

b. insulators

Question 10

The operating voltage of an insulator can be determined by the ? , its length, or its height.

Select one:

a. insulators’ material make-up
b. number of layers (skirts)
c. pin type
d. support design

Answer 10

b. number of layers (skirts)

Question 11

The piece of equipment used to step the voltage up or down in an electrical system is called a ? .

Select one:

a. capacitor
b. regulator
c. transformer
d. transmission line

Answer 11

c. transformer

Question 12

When a voltage condition occurs that is higher than the designed voltage for the system, a(n) ? becomes a path to ground.

Select one:

a. arrester
b. capacitor
c. switching station
d. transformer

Answer 12

a. arrester

Question 13

Guy wires cannot become energized because they are tied to rods in the earth.
Select one:

True
False

Answer 13

False

Question 14

The connection point between an underground cable and an overhead conductor is normally made through a ? .

Select one:

a. capacitor
b. pothead
c. splice
d. transit point

Answer 14

b. pothead

Question 15

Ways to determine the actual operating voltage of a power line include asking an authorized company representative, observing nameplate information, and ? .

Select one:

a. checking the size of insulators
b. fuzzing the line
c. tracing the line back to the substation
d. using test instruments

Answer 15

d. using test instruments

Question 16

The approach distance to a 12,000-volt line phase-to-phase is ? .

Select one:

a. 2’ 2”
b. 2’ 7”
c. 2’ 10”
d. 3’ 6”

Answer 16

a. 2’ 2”

Question 17

The electrical factor distance and human factor distance are also called the ? .

Select one:

a. design factor difference
b. minimum approach distance
c. minimum insulator factor
d. nominal factor distance

Answer 17

b. minimum approach distance

Question 18

The term nominal voltage means the ? .

Select one:

a. average voltage on a circuit
b. highest voltage a circuit carries
c. lowest voltage a circuit normally carries
d. normal operating voltage

Answer 18

d. normal operating voltage

Question 19

A Qualified Electrical Worker must be ? .

Select one:

a. able to determine the nominal voltage of exposed live parts
b. part of a random drug/alcohol testing program
c. physically fit for the job
d. trained by the IBEW

Answer 19

a. able to determine the nominal voltage of exposed live parts

Question 20

Most electrical conductors are made of copper, aluminum, or ? in older systems.

Select one:

a. brass
b. nickel
c. silver
d. steel

Answer 20

d. steel

Question 21

The device used to automatically raise or lower the primary voltage of a line to ensure its optimal voltage range is a ? .

Select one:

a. breaker
b. recloser
c. regulator
d. transformer

Answer 21

c. regulator

Question 22

A capacitor stores electrical energy.

Select one:
True
False

Answer 22

True

Question 23

Insulators installed in guy wires are intended to protect ? .

Select one:

a. a climber from making a ground contact
b. people and equipment on the ground
c. the ground rod from electrolysis
d. the pole or structure from becoming energized

Answer 23

b. people and equipment on the ground