Energy Release Hazards

Select the types of incident hazards associated with electrical energy.

• Burns

• Electrical Shock

• Explosions

• Fires

Match the following electrical current with the common item/tool.

• 9-Volt battery

• 1-9.9 amps

• Small electric radio

• 10 amps or above

• Shop vac, circular saw

• 0.006-0.02 amps

• Christmas tree bulb

• 0.05-0.9 amps

• Electric drill or reciprocating saw

• 0.005 amps

Grounding occurs when an electrical current is connected to what?

• The ground

• An outlet

• A tool

• A transformer

In a three-wire grounding system, the third wire is connected to what?

• The ground

• The power source

• The wall

• The tool

What is the best way to stop the current from someone who is being shocked?

• Shut off power source

• Hit them with a wooden board

• Pull them away with your hands

• Spray them with fire extinguisher

What protects workers from unexpected releases of energy?

• Lockout/Tagout

• Lock/Tag

• Insulation

• Grounding

In non-emergency situations, who may remove a lock from an energized source?

• The person who applied it

• A supervisor

• The safety manager

• The general contractor

What else must be applied to an energy source for safety?

• Tag that says "Danger"

• Disconnect

• De-energizer

• Switch

What is the primary reason for grounding electrical appliances?

• To improve their efficiency

• To protect against electrical overloads

• To prevent electric shocks

• To reduce power consumption

What material is a good conductor of electricity?

• Plastic

• Wood

• Metal

• Glass