May is Electrical Safety Month. How well do you know the standards and regulations that keep you safe on the job? To access resources and informational videos related to consumer and workplace electrical safety developed by the Electrical Safety Foundation International, visit ESFI’s website at esfi.org.
Created by: Wesley L. Wheeler
1. Using a(n) ________ is a common method for protecting against electrical shock in bathrooms, outside and on kitchen countertops.
A. Arc-fault circuit interrupter
B. Surge-protective device
C. Groundfault circuit interrupter
D. Current-limiting fuse
2. Swimming in a marina is dangerous due to electrical voltage gradients that can be developed by vessels using onboard generators or connected to shore-based power electrical feeds.
3. Listed, labeled or certified equipment shall be installed and used in accordance with the ________ included in the listing, labeling or certification.
4. The minimum working distance required when there are exposed live parts less than 600 volts (V) on one side and no live or ground parts on the other side is ________ feet.
5. Generally, live parts of electric equipment operating at 50V or more shall be guarded against accidental contact by cabinets or other forms of enclosures or by elevation of ________ feet or more above the floor or other working surface and so installed as to exclude unqualified people.
6. What is the first step in a proper, simple lockout/tagout procedure?
A. Determine all possible sources of electric supply
B. Disconnect and de-energize
C. Apply locks and tags
D. Notify affected personnel
7. Extension cords used on construction sites can be fastened with staples, hung from nails or suspended by wire.
8. When can control circuits be used as the primary means to lockout an electrical circuit?
A. It depends on the equipment
B. It is always permitted
C. It is never permitted
D. When performed by a competent person
9. According to OSHA, after Aug. 13, 2007, open conductors, open multiconductor cables and service-drop conductors greater than 150V and less than 300V to ground over residential property and driveways shall have ________ feet of clearance from ground.
10. Rubber protective gloves used for protection against electrical shock exposure to 480V shall be Class ________ at a minimum.