Second Year Iec Final Exam Questions & Answers 2024.

Twenty-five feet of bare 4 AWG copper that is laid in the grade beam within a poured building slab ______ permitted to be used as a grounding electrode for a separately derived system or service. I/IN {Ans: is}The Ampacity of each conductor of a 8/3 AWG multiconductor Type W flexible cable used to supply fastened-in-plalce utilization equipment is ______ amps. See NEC T. 400.4 for available sizes. One of the conductors is an EGC and all conductors have a 75C insulation rating. {Ans: 65}The smallest circuit breaker that can be installed in a panel is ____ amp. The circuit supplies power to a 240-volt, single-phase, 5.8 KW, 50-gallon water heater. {Ans: 30}40C = ____ F {Ans: 104}Transformers power ratings can be in ______. -i. VA -ii. MVA -iii. KVA {Ans: any of these}Article 220 required that each single or multiple receptacle on a single strap be calculated at ______ VA {Ans: 180}Which of the following is an example of a bare conductor? - a 12 awg THHN copper wire - the bare ground wire contained within romex (NM cable) sheathing -the bare aluminum wire twisted with triplex {Ans: the bare aluminum wire twisted