4: Avoiding Electrocution Hazards

Your co-worker Boston is about to place a plug into a wall receptacle with his hand on the plug. Should you stop Boston?

• Yes, because you should never place your hand on the plug while you plug it into a wall receptacle.

• Yes, because you should always plug it into an extension cord, not a wall receptacle.

• No, Boston is using a safe method of plugging in the cord.

Yvonne is having an electrician come to her site to work on a piece of machinery. As an employer, what does she need to ensure before the electrician begins work on the equipment?

• Lockout and tagout the equipment's electrical circuit(s)

• Purchase liability insurance for the equipment

• Confiscate the keys to the machinery

• Install a GFCI or an AEGCP for the equipment's electrical circuit(s)

Some overhead power lines have a protective covering that protects them from exposure to the elements. Does this covering also protect you, the worker, from electrocution?

• Yes

• No

Which of the following are electrical hazards? Select all that apply.

• Shock

• Explosions

• Burns

• Fire

• Arc Flash

A worker standing on a freshly mopped floor is adjusting products on a metal shelf with which there is a bare wire in contact. Which hazard is present?

• Contracting overhead power lines

• Contacting energized sources

• Using extension or flexible cords improperly

Which of these does OSHA require employers to construct and install to minimize electrocution hazards? Select all that apply

• Lighting found throughout the building

• Appliances such as freezers or refrigerators

• Switches used with generators

• Controls on equipment and machinery in the workplace

How does a GFCI protect you?

• It detects when there is any current leakage and cuts off the electrical flow.

• It alerts you when there is any current leakage

• It can cut off the electrical flow when you push the reset button.

Is using a three-prong plug with a missing ground post safe or unsafe?

• Safe

• Unsafe

Is it safe or unsafe to pull on a cord to remove plug from a wall receptacle?

• Safe

• Unsafe