Electrical Safety

Under strict safety guidelines, which of the following should be used to discharge capacitors before working on de-energized circuits?

• A test instrument
• A hot stick
• A phasing tester
• A safety shorting probe

What color tags are on the rubber gloves with the highest level of protection?

• black
• red
• orange
• yellow

For safety, assume that any facility constructed before 1980 contains?

• asbestos
• confined spaces
• GFCIs
• PCBs

Which of the following voltages is considered low voltage?

• 500V or less
• 600V or less
• 700V or less
• 800V or less

Insulating gloves must be inspected by the user?

• before each use
• weekly
• monthly
• yearly

Class 1 rubber gloves have a maximum AC use voltage of?

• 1,000V
• 7,500V
• 17,000V
• 26,500V

The normal beating of a heart can be upset by an electrical current as small as?

• 1mA
• 30mA
• 75mA
• 1,000mA

Which factor determines the outcome of an electrical shock?

• The amount of current
• Which phase is involved
• The raceway system
• The size of the electrical equipment being used

A live-dead-live test is conducted in order to?

• disconnect switches and fuses
• verify the test instrument operation
• make sure the capacitors are discharged
• verify that a circuit is de-energized

OSHA requires you to be evaluated by a physician to ensure that you are physically fit to use which of the following types of protective equipment?

• Chemical goggles
• Filter mask
• Respirator
• Chemical apron