Exam 18: Device Installation

On a 20-ampere rated branch circuit, which of the following types of receptacles may not be used?

When self-grounding receptacles are used with nonmetallic device boxes, there is no need to attach the circuit grounding conductor to the green screw on the receptacle.

A GFCI device provides protection against __________.

A __________ device operates by monitoring the current flow on both the ungrounded "hot" conductor and the grounded conductor.

A __________ switch would be used to control two lights from one location.

A __________ receptacle is one that has internal shutters that are closed behind the receptacle slots when there is no attachment plug inserted.The shutters open when a plug is inserted allowing the plug (and cord) to become energized.