Question 91
What is the primary purpose of a ground-fault circuit interrupter (GFCI) device on a 120 V receptacle?
Question 92
A nonmetallic-sheathed cable marked '12-2 with ground' contains which of the following?
Question 93
Which of the following best describes a neutral (grounded) conductor in a single-phase 120/240 V system?
Question 94
In a residential bathroom, why is a GFCI-protected receptacle required near the sink?
Question 95
On a standard 120 V duplex receptacle in the US, which terminal should the ungrounded (hot) conductor be connected to?
Question 96
What is the main purpose of an equipment grounding conductor?
Question 97
What is the primary purpose of a ground-fault circuit interrupter (GFCI) on a 120 V receptacle circuit?
Question 98
What is the primary function of the neutral conductor in a 120/240 V single-phase residential service?
Question 99
An equipment grounding conductor is required in a metal raceway feeding receptacles. What is its primary function?
Question 100
In a grid-tied photovoltaic (PV) system, what is one important requirement for the AC disconnect that isolates the PV from the utility?
Question 101
Which device protects a motor from short circuits and ground faults?