Electrical

Question 1

OSHA

Answer 1

Occupational Safety and Health Administration - it guarantees safe and healthy working conditions on the Jobsite through research, information, and training. Employers must provide safety training for employees when working with/around hazards.

Question 2

MOL

Answer 2

Ministry of Labor - Enforces legally mandated Jobsite regulations.

Question 3

IHSA

Answer 3

Infrastructure Health and Safety Association - Provides training and resources to lower the risk of safety hazards on job sites and maintains a record of workplace injuries.

Question 4

WSIB

Answer 4

Workplace Safety and Insurance Board - Provides support for employee injury or illness on the job site by covering their lost earnings and health care.

Question 5

ESA

Answer 5

Electrical Safety Authority - Provides enforcement and administration of regulars in electrical safety, inspections, investigations and licensing.

Question 6

AHJ

Answer 6

Authority Having Jurisdiction - Electrical Safety Authority

Question 7

LOTO

Answer 7

Lock Out Tag Out - Ensuring that no power is going through the circuit that is being worked on by locking the power lever with a clasp and a padlock on it. Each padlock has a number and its keys are only given to one person. The tag has the company name, date, and padlock number on it.

Question 8

WHMIS

Answer 8

Workplace Hazardous Material Information System - A federal system used to communicate hazards associated with the use of materials. Consists of hazard classification, cautionary labeling, Safety Data Sheets (SDS), and education/training programs.

Question 9

Scaffold Regulations

Answer 9

Employers must provide scaffold training for employees. Fall arrest and toe boards must be used when working above 10 feet. The work area must be clear of debris and hazards (snow, ice). Must be 10 feet away from energized powerlines. Ladders or stairs must be used to climb a scaffold. They must be able to hold 4 times the intended weight. If scaffolds are

Question 9

Scaffold Regulations

Answer 9

Employers must provide scaffold training for employees.
It must be on a flat surface. Fall arrest and toe boards must be used when working above 10 feet.
The work area must be clear of debris and hazards (snow, ice).
Must be 10 feet away from energized powerlines.
Ladders or stairs must be used to climb a scaffold.
They must be able to hold 4 times the intended weight.
If scaffolds are more than 3 frames high it has to be either tied to the structure or outriggers must be used.

Question 10

Step Ladder Regulations

Answer 10

When around energized equipment non-conductive ladders must be used.
Inspect the ladder for any missing, loose, or cracked parts, do not use them if any are present.
If the ladder has spreaders make sure they are extended all the way.
Do not use a step ladder light a straight ladder.
The top cap is not for standing on a step ladder.
Do not leave materials on the top cap of a step ladder.

Question 11

Straight Ladder Regulations

Answer 11

Inspect the ladder for any missing, loose, or cracked parts, do not use them if any are present.
Place the ladder at an angle of 1/4 the Hight of the structure it is against out and the ladder must be at least 3 feet above the top structure.
Secure the ladder by either tying it down or having someone hold it.
Face the ladder and use both hands when climbing.
Do not carry tools in your hand when climbing a ladder.

Question 12

3 Contact Rule

Answer 12

All ways have at least three points of contact when on a ladder - 2 feet and 1 hand.

Question 13

Fire Classifications

Answer 13

A - Combustion of ordinary materials like wood or paper.
B - Combustion of flammable liquids like gasoline
C - Electrical fire
D - Combustion with heavy metals

Question 14

Types of Fire Extinguishers

Answer 14

Pressurized Water - Class A fire
Carbon Dioxide - Class B, C fire
Dry Chemical - Class A, B, C fire
Foam - Class D fire

Question 15

PASS

Answer 15

Acronym for the deployment of a fire extinguisher
Pull
Aim
Squeeze
Sweep

Question 16

Current

Answer 16

Movement of electrical charge

Question 17

Voltage

Answer 17

Measure of electrical force

Question 18

Amperage

Answer 18

Strength of an electric current

Question 19

Milliampere

Answer 19

1/1000 or an ampere

Question 20

Defibrillation

Answer 20

The use of an electrical current to help the heart return to a normal rhythm.

Question 21

Electrical DO’s

Answer 21

Wear proper PPE
Install all wiring according to the Electrical Code
Work with a buddy
Follow safe practices
Use good judgment when giving and receiving instructions
Always turn off the electrical power and LOTO
Assume all electrical equipment to be energized
Clean up all wiring debris and keep the area clean

Question 22

Electrical DONT’s

Answer 22

Cut off the grounding prong
Defeat the purpose of any safety device
Fool around on the job
Consume drugs and alcohol
Talk unnecessarily

Question 23

Grounding

Answer 23

Provides a low resistance path for fault current to flow to the ground.

Question 24

AFCI

Answer 24

Arc Flash Current Interrupter - Detects when a current is flowing in the wrong path and breaks the circuit to protect the electrical components.

Question 25

GFCI

Answer 25

Ground Fault Current Interrupter - Detects a leakage of current to the ground and breaks the circuit to protect people from getting shocked.

Question 26

Electrical Shock

Answer 26

The shock is received when current passes through the body. But the severity of the shock depends on the path and amount of current going through the body and the amount of time the body is in the circuit. The body will go into ventricular fibrillation (rapid, ineffective heartbeat) if it is exposed to

Question 27

How is an electrical shock received?

Answer 27

When two wires have different potential differences (volts) current will flow if they are connected.
In most household wiring the black wire is 110 volts relative to the ground and the white wire is 0 volts because they are connected to the ground. If you are in contact with an energized black wire and a white wire the current will pass through you resulting in a shock. You can also receive a shock when you are not in contact with the ground. If you contact both wires in a 240-volt cable you will be shocked and possibly electrocuted.