IEC First Year Exam Study Guide Questions with Verified Solutions

IEC First Year Exam Study Guide Questions with Verified Solutions ___ can be described as the point of demarcation between where the serving utility ends and the premises wiring begins. Service Point A 12/3 cable is installed from a 120/240-V, 1Ø panel and feeds a split-wired duplex receptacle. One "hot" is connected to a 20A breaker in panel space 1. The second "hot" is connected to a 20A breaker in space 3. A 16-amp load is connected to the upper receptacle and a 14-amp load is connected to the lower receptacle. Which of the following will happen if the neutral is removed from the receptacle? Because a higher voltage will be applied, 120-volt equipment could be destroyed. a 20-amp, 120-volt duplex convenience receptacle near a pool shall be located so that it is ___ feet or more from the inside edge of the swimming pool 6' A breaker panel is permitted to be located ___ in an electrical room in a school in a bathroom in a restaurant A disconnecting means (or means of disconnect) for a swimming pool circulation pump must be installed ___ at least 5' from the inside of the pool, readily accessible, so that it is visible from the pump A short length of EMT is run between two panels. The ampacity values for the conductors in this EMT need not be derated, as long as the length of the EMT does not exceed ___. 24 in. an equipment grounding conductor (EGC) is the conductor that is ___ installed with the branch circuit conductors in a conduit or cable run An extension ladder should extend ___ feet above the top of the building and be secured. 3ft. Article ___ in the NEC ® covers grounding and bonding of electrical systems. 250 Article ___ of the NEC ® is the article that gives requirements for swimming pool installations. 680 circuits 7 and 9 share neutral. this is a multi-wire branch circuit. if ckt 7 is drawing 13 amps and ckt 9 will draw 16 amps, how much current is flowing in the neutral 3 eleven #12, five #10, and six #6 THHN/THWN conductors will be installed in a run of EMT. The smallest trade size EMT you can use is 1 1/4in For a 100-Amp, 120/240-V, 3W commercial service, ___ AWG copper THHN/THWN conductors are the smallest permitted for the ungrounded conductors. 3 For a 125-amp, 120/240-V, 3W residential service, ____ AWG copper THHN/THWN conductors are the smallest permitted for the underground conductors 2 for purposes of calculating a residential service, the general-purpose lighting load is calculated at ___ per sq. ft. of area 3 volt-amperes