Explain the purpose of the metal strap that runs through or behind a receptacle or switch.
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Q20: A GFCI device provides protection against _.
A)
Q21: GFCI receptacles should be tested at least
Q22: A(n) _ switch is used to control
Q23: A duplex receptacle that is wired so
Q24: If a device box has been installed
Q26: The metal frame that a receptacle or
Q27: The preferred method for connecting a circuit
Q28: To GFCI-protect receptacles that are downstream from
Q29: A(n) _ is a familiar type of
Q30: The NEC defines a(n) _ as a
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