Test Review

Question 1

What are the three hazards of electricity?

Answer 1

Electrical shock, arc flash, and arc blast

Question 2

What office is responsible for generating warning labels?

Answer 2

Plant Asset Management Office (PAMO)

Question 3

Who is responsible for giving us PPE?

Answer 3

Branch chief and supervisor

Question 4

What type of face shield should you wear?

Answer 4

Face shield with an Arc Thermal Protective Valve (ATPV)

Question 5

What does FR stand for?

Answer 5

Flame Resistant

Question 6

What are test instruments rated for?

Answer 6

The circuits and equipment to which they will be connected.

Question 7

Where can an unqualified worker go?

Answer 7

Limited boundary if they are continuously escorted by a qualified worker.

Question 8

What work is permitted on live circuits?

Answer 8

Troubleshooting and testing

Question 9

An electrical JHA should be held when?

Answer 9

• Before the start of each work day and each new job
• If worksite conditions change
• If personnel assigned to the job change

Question 10

How do we treat exposed electrical equipment?

Answer 10

Treat it as if energized until tested and proven to be de-energized by a qualified person.

Question 11

When are protective grounds needed?

Answer 11

When working on conductors or equipment that is normally energized at 600 volts or greater before the equipment is considered de-energized.

Question 12

Once you are issued gloves, how should you treat them?

Answer 12

They must be properly handled and stored, carefully inspected before use, and periodically proof tested.

Question 13

What do you do if rubber gloves and/or equipment has no verifiable expiration date?

Answer 13

They must be retested before being used

Question 14

Is jewelry or metal on the body allowed during switching?

Answer 14

No

Question 15

What is an arc flash?

Answer 15

The result of an inadvertent electrical fault, either phase-to-phase or phase-to-ground.

Question 16

What is an arc flash boundary?

Answer 16

The distance from exposed live parts within which a person wearing natural fiber clothing could receive a second-degree burn if an electrical arc were to occur.

Question 17

What is considered energized equipment?

Answer 17

Anything that has live parts energized at 50 volts or greater.

Question 18

What are the Hazard Risk Categories and what are the Max Arc-Flash Hazards for each?

Answer 18

HRC cal/cm^2

0              1.2
1                 4
2                8
3              25
4              40

Question 19

How often do rubber blankets have to be tested?

Answer 19

Before first use and every 12 months thereafter.

Question 20

When do rubber insulated gloves need to be tested?

Answer 20

Before first issue and every 6 months thereafter.

Question 21

What is the NFPA 70E?

Answer 21

An electrical safety standard that addresses electrical safety requirements for employee workplaces that are necessary for the practical safeguarding of employees in their pursuit of gainful employment

Question 22

How hot can an arc flash be and what kind of injuries can arc flash cause?

Answer 22

Arc flash can produce heat four times the surface temperature of the sun at which fatal burns can occur. Serious burns and fatalities are not uncommon at a distance of 10 feet.

Question 23

What are the electrical shock hazard effects of current on the body?

Answer 23

Can’t Let Go
10 mA

Ventricular Fibrillation
100 mA for 3 seconds
200 mA for 1 second

Heart Failure
500 mA

Organ Burn and Cell Breakdown
1500 mA

Question 24

When should leather gloves be used and why?

Answer 24

They should be worn over rubber insulating gloves to provide the mechanical protection needed against cuts, abrasions and punctures.

Question 25

What are the first two classifications of electrical protective gloves and what are their max ratings?

Answer 25

Class 00 - max rating of 500 volts AC

Class 0 - max rating of 1000 volts AC

Question 26

What is the purpose of ST-19?

Answer 26

To enhance safe working conditions established by OP-2 general operating procedures.