electricity second half

Question 1

They automatically open circuit if unsafe current is detected.

Answer 1

electric protective devices

Question 2

Fuses

Answer 2

melt

Question 3

breakers

Answer 3

flip

Question 4

GFCIs

Answer 4

Isolate the load

Question 5

GFCI cuts electricity off __ of a second if a ground fault is detected.

Answer 5

1/40th

Question 6

GFCI’S should be used on all _____, or have an assured equipment grounding conductor program.

Answer 6

120-volt, single phase, 15-20 ampere receptacles

Question 7

Tripping GFCI’s are designed to trip at____.

Answer 7

4-6 milliamps

Question 8

GFCI’s are not required on permanent power ________.

Answer 8

unless tool used with extension cord

Question 9

GFCI’S or ____ are required for all temporary power during construcution.

Answer 9

assured equipment grounding conductor program

Question 10

If a GFCI detects as imbalance as small as ___ it reacts as fast as ___ of a second.

Answer 10

1. 5 milliamps

2. 1/30th of a second

Question 11

GFCI is useless if ground prong is____.

Answer 11

missing

Question 12

GFCI required on generators ____ or greater.

Answer 12

5 kW or 5,000 watts

Question 13

GFCI can be built in or added as a ____.

Answer 13

pig tail

Question 14

All cord sets, recptacles and any equipment connected by cord shall be ______.

Answer 14

Inspected before each days use

Question 15

Must be kept onsite.

Answer 15

Written program

Question 16

What is covered by assured grounding?

Answer 16

electric tools/power tools. Cords, plugs, receptacles not part of the building.

Question 17

Assured Grounding test records are kept by_____.

Answer 17

color coding, other means, written log.

Question 18

electrical equipment must be inspected____.

Answer 18

before insulation and to make sure it is suitable for it’s intended use.

Question 19

Listed, labeled, or certified equipment must be used _____.

Answer 19

Per manufacturer’s instructions

Question 20

All circuit breakers must be_____.

Answer 20

labeled

Question 21

Access to live parts 50+ volts must be protected by ___ or ___.

Answer 21

restricted areas or physical locations

Question 22

Accessible by only qualified persons. For example a room or a partition, screened area, balcony, platform.

Answer 22

restricted areas

Question 23

Elevated 8 feet or more above the floor or working surface.

Answer 23

Physical locations

Question 24

Specific written procedures adopted by the employer.

Answer 24

Assured Equipment Grounding Program (AEGP)

Question 25

AEGP must be ___.

Answer 25

kept onsite

Question 26

Who must implement an AGEP?

Answer 26

competent person

Question 27

What is the coverage for Assured grounding?

Answer 27

Equipment connected by plug and cord. all cords, plugs, and receptacles and power tools.

Question 28

Assured grounding test records are kept how?

Answer 28

by color coding, and other means, and by written log

Question 29

Electrical equipment must be.....

Answer 29

1. Inspected bfore insallation | 2. Suitable for the intended use.

Question 30

Listed, labeled, and certified equipment ______.

Answer 30

to be used per manufacturer's instructions

Question 31

All ___ must be labeled.

Answer 31

circuit breakers

Question 32

electrical rooms must be____.

Answer 32

marked

Question 33

must use splicing devices designed for that purpose (wire nuts) or by brazing, welding, or soldering.

Answer 33

splicing conductors

Question 34

manufacturer's information must be legible. What must be provided?

Answer 34

Manufacturer's name, trade mark, voltage, current, and wattage.

Question 35

Must have access and "elbow room". Access must be maintained around all electrical equipment. Work spaces clearances are a minimum of ____ in front of elec. equip.

Answer 35

3 ft squared

Question 36

Controls on equipment must be _____.

Answer 36

lock out/tagged out

Question 37

How do you prevent energizing circuits?

Answer 37

Circuits that are de-engerized must be taggedout/lockedout.

Question 38

What must be done to live wires?

Answer 38

Insulation

Question 39

Use words that have ____ and are marked for ______.

Answer 39

three prongs and that are marked for hard or extra hard usage.

Question 40

Use only cords, connection devices, and fittings equipped with _____.

Answer 40

strain relief

Question 41

removed cords by____.

Answer 41

pulling on plugs

Question 42

A low-resistence path from a tool to the earth to disperse unwanted current.

Answer 42

grounding

Question 43

Energy flows through the ground wire and not you! To the ground protecting you from electrical shock, injury or death.

Answer 43

When a short occurs

Question 44

What is the most frequent osha violation?

Answer 44

Missing ground on extension cord

Question 45

This situation can cause arching and a fire in the area where the overload exists. Even inside a wall.

Answer 45

Overloading circuits

Question 46

They automatically open circuit if unsafe current is detected-they "shut off" electricity.

Answer 46

Electric circuit protective devices.