Test 3-2

Question 1

The IBEW electrical construction industry is known as the ? Industry.

Answer 1

C) strikeless

Question 2

The ? System is used when an informed neutral party analyze the conditions and through persuasion bring the parties together.

Answer 2

C) mediation

Question 3

Labor, peace and better conditions for all Can be a result when ? Is exercise in negotiation.

Answer 3

C) Goodfaith

Question 4

Bodily injury is a result of the current level and ?.

Answer 4

C) Duration of the current flow

Question 5

Body current will flow inside the body when ?.

Answer 5

D) Voltage punctures the skin

Question 6

Low levels of current flowing through the body for an extended period of time can result in ?.

Answer 6

A) Fibrillation

Question 7

If the voltage and resistance of a circuit is known what formula can be use to find current flow. ?

Answer 7

A) v/r=I

Question 8

The primary characteristics of a ? Circuit is that it has multiple paths of current flow.

Answer 8

B) Parallel

Question 9

?

Answer 9

?

Question 10

worker making contact with 4160 volts and with a body resistance of 700 ohms will have __?__ amperes of current passing through his or her body.(Round-up)

Answer 10

C) 9

Question 11

Most historical approaches to personal protective grounds were__?__.

Answer 11

B) not effective

Question 12

12. When using separate grounding connections to earth__?__

Answer 12

B) current will still flow through the workers body

Question 13

he great myth about grounding is a connection to earth __?__

Answer 13

B) is a connection to 0 volts.

Question 14

14. An equipotential zone works by placing a ? In parallel with the worker.

Answer 14

C) low resistive shun

Question 15

?

Answer 15

D) voltage

Question 16

The equipotential zone ground cable in a ? When it’s part of the bracket scheme.

Answer 16

C) personal protective jumper

Question 17

When an electrical worker is working in a equipotential zone a Pole ground ?

Answer 17

A) Has little effect on current that passes through his/her body.

Question 18

A ground should be sized to carry ? Current as long as the circuit is energized.

Answer 18

C) fault

Question 19

A ? Provides stress relief for grounding cable.

Answer 19

A) cable ferrule

Question 20

In placement of grounds , Knowledge of a ? helps the worker understand his/her place in the Circuitry.

Answer 20

A) Basic circuits

Question 21

If grounds are_?_ the safety of worker is in jeopardy.

Answer 21

A) installed in the incorrect order

Question 22

The first step when installing grounds is to ?

Answer 22

D) Test the line for the absence of voltage.

Question 23

A low resistance source path is the ?

Answer 23

A) neutral conductor

Question 24

When ? flows through a conductor a voltage drop across the conductor develops.

Answer 24

B) current

Question 25

Under fault conditions as a worker gets closer to the connection point where the ground rod is driven a difference of potential will occur between the workers and _?_

Answer 25

A) Feet/Feet

Question 26

One way for a worker to protect himself is to create an equipotential zone using a_?_

Answer 26

D) portable ground mat

Question 27

The voltage drops across the earth decreases about _?_ For every 2 - 3 feet away from the earth connection point.

Answer 27

D) 50%

Question 28

A de-energized and insulated line may be charged with _?_Without current flow.

Answer 28

C) induced voltage

Question 29

During accidental energization of equipment _?_ Fault current will flow.

Answer 29

a) large

Question 30

A _?_ can be induced by wind.

Answer 30

a) static charge

Question 31

Induce current accidents are common because of the use of _?_

Answer 31

d) multiple grounds

Question 32

A driven ground rod may help a ___ but provides _?_ For the workers around the truck

Answer 32

c) no protection

Question 33

During Maintanance work a _?_ ground between the truck, the line and a driven ground rod should be used.

Answer 33

a) common

Question 34

The _?_ Of the worker is the key to safety.

Answer 34

B) focus

Question 35

When the worker contacts the conductor for splicing, the _?_ No longer offers protection.

Answer 35

C) portable ground mat

Question 36

By using a ground mat, a _?_ can be created around pad – Mount switches and transformers

Answer 36

C) equipotential zone

Question 37

A good rule for URD work is: Do not depend on __?__.

Answer 37

a) __existing cable tagging b) __ What you can't see c) __ what you think you know d)_x_ all the above

Question 38

Large fault current levels in substations require (s).

Answer 38

b) large clamps and cables

Question 39

major construction ___ ____ _____

Answer 39

a) higher fault current levels

Question 40

Close spacing between energize conductors and de-energized equipment creates

Answer 40

c) induced voltages and currents

Question 41

Personal protective grounding during construction activities become hazardous on the worksite because_?_

Answer 41

A) __more workers are present B)__ more vehicles increase C) __workers are often working near energized lines D)_x_ all the above

Question 42

While working around vehicles and equipment, grounding mats are preferred over rubber gloves and insulating items because _?_.

Answer 42

D) the voltage can exceed the rating of insulating items.

Question 43

The touch potential hazard increases around a _?_ That become energized.

Answer 43

a) __ pole b) __ tower c) __ vehicle d) _x_ all the above

Question 44

The type of soil and _?_ influences the resistance of the earth.

Answer 44

a) moisture content of the soil

Question 45

The earth's ground Resistance increases when _?_

Answer 45

a) the moisture in the earth decreases

Question 46

The national electrical code require that a ground rod shouldnt have less than_?_ ohms resistive

Answer 46

c) 25

Question 47

Lightning Can be_?_Of volts.

Answer 47

c) millions

Question 48

The _?_ Housing of a lightning arrestor reduces the damaging effects in case of a failure.

Answer 48

d) polymer

Question 49

The metal-oxide arrestor does not have _?_ between the valves.

Answer 49

a) gaps

Question 50

A dead front lightning arrestor is used in_?_

Answer 50

C) Underground distribution