IEC 3A TEST BANK QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY PASSED

IEC 3A TEST BANK QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY PASSED When an isolated ground receptacle is installed in a metal box, a(n) ___ equipment grounding conductor is required for connection to the metal box. Select one: ate copper ized ated - 2020 NEC: 250.96(B) The correct answer is: separate The equipment grounding conductor is permitted to be run separately from the circuit conductors when ___. Select one: lled in industrial establishments only equipment grounding conductor has the same insulation as the circuit conductors c.a nongrounded-type receptacle is replaced branch circuit is less than 30 amperes - 2020 NEC: 250.130(C) The correct answer is: a nongrounded-type receptacle is replaced Which of the following receptacles are required to be GFCI protected? I. where installed in a patient's room in a hospital II. where installed on the exterior wall (outdoors) of an elementary schoolIII. where installed adjacent to (2 feet away from) a sink in a bar - 2020 NEC: 210.8(B)(4) | 2020 NEC: 210.8(B)(5) The correct answer is: II & III only Which of the following receptacles are required to be GFCI protected?I. where installed outside on the exterior wall of a restaurantII. where installed on the wall at 18" AFF (NOT above a countertop) in the kitchen at a restaurantIII. where installed on the exterior wall (outdoors) of an elementary school Select one: a.II only b.I, II & III c.I only d.II & III only e.III only - 2020 NEC: 210.8(B) The correct answer is: I, II & III Type MC cable is available with two grounding conductors. One of these is green and the second one is green with ___ stripes. Select one: w of these - The correct answer is: yellow Ground-fault circuit interrupters are designed to trip at current levels above ___. Select one: a.10 mA b.6 A c.6 mA d.20 A e.4 A - 2020 NEC: 100_Ground-Fault Circuit Interrupter I-Note The correct answer is: 6 mA Although protected with a GFCI breaker, a person could still feel a shock. Select one: a.True b.False - The correct answer is: True Equipment grounding conductors installed in raceways for isolated ground receptacles are required to ___. Select one: continuous, without joints or splices copper insulated green insulation without stripes of these - 2020 NEC: 250.96(B) The correct answer is: be insulated Two 20-amp, 120-volt GFCI breakers are installed in spaces 8 & 10 in a 120/240-volt 1Ø, 3-wire panel. These two circuits will be installed in one conduit. You must install at least ___ neutral(s) in the conduit. Select one: a.1 b.2 c.3 d.0 - The correct answer is: 2 A conduit system of PVC and RMC was installed in the slab between the bottom of the panel and a metal switch box in the wall. A 15-amp branch circuit (including a "hot," a neutral, an EGC, and an isolated grounding conductor) was installed in the PVC/RMC. The receptacle shown here was connected and installed in the metal switch box and a stainless steel cover was installed on the receptacle.Figure 309.71 Refer to Figure 309.71. Using a voltmeter on the energized receptacle, your meter would indicate ___ volts, if the leads were connected between point C and the metal cover. - The correct answer is: 120 A conduit system of PVC and RMC was installed in the slab between the bottom of the panel and a metal switch box in the wall. A 15-amp branch circuit (including a "hot," a neutral, an EGC, and an isolated grounding conductor) was installed in the PVC/RMC. The receptacle shown here was connected and installed in the metal switch box and a stainless steel cover was installed on the receptacle.Figure 309.71 Refer to Figure 309.71. Using a voltmeter on the energized receptacle, your meter would indicate ___ volts if the leads were connected between points A and C. - The correct answer is: 120 Refer to Figure 308.22. Only one EGC will be installed in the EMT between the panel and the metal pull box. Splices will be made at the ground bar in the pull box to drop an EGC to each load. Does the NEC® require the insulated ground bar to be connected to the metal pull box? Select one: a.Yes b.No - 2020 NEC: 250.148(C) The correct answer is: Yes A separate water piping bonding jumper ___ required where the metal frame of a building or structure is used as the grounding electrode for a separately derived system and is bonded to the metal water piping in the area served by the separately derived system. Select one: not be be - 2020 NEC: 250.104(D)(1) Exc 2 The correct answer is: shall not be Where used in a corrosive environment at a wastewater treatment plant, ___ equipment bonding jumpers are permitted.I. aluminum II. copper Select one: a.I only b.II only r I or - 2020 NEC: 250.102(A) The correct answer is: II only For Figure 309.73, a meter would indicate ___ ohms between points B and C. Select one: a.∞ (or OL on a digital meter) b.0 - The correct answer is: 0 For Figure 309.73, a meter would indicate ___ ohms between points A and C. Select one: a.∞ (or OL on a digital meter) b.0 - The correct answer is: ∞ (or OL on a digital meter) Which of these box-receptacle combinations require(s) the installation of a grounding jumper (pigtail) from the receptacle to the box? All boxes and conduits are metal. Separate EGCs were NOT installed with these circuits.I. a receptacle installed on a surface-mounted "bell" box where both washers were removed from the receptacle mounting screwsII. a self-grounding receptacle mounted on a switch box that is set back in the sheetrock wall not more than 1/ 4 inch where the washer was removed from the receptacle mounting screwsIII. a receptacle on a surface-mounted handy box where both washers were removed from the receptacle mounting screws Select one: a.I only b.I, II & III c.I & III only d.II only of these - 2020 NEC: 250.146 The correct answer is: none of these To apply the exception to NEC® 250.140, the existing wiring method to a 120/240-volt range can be ___.I. 8-2 with ground Type NM cableII. 8-3 (without ground) Type NM cableIII. 8-3 Type SE cable (all three conductors insulated) Select one: a.III only b.II or III only c.I or II only d.I, II or III - 2020 NEC: 250.140 Exc The correct answer is: II or III only Section ___ of the NEC® permits the equipment grounding conductor used as an isolated grounding conductor to pass through a metal box without being connected to the box. Select one: a.250.149 b.250.148 c.250.146 d.250.66 - 2020 NEC: 250.146(D) The correct answer is: 250.146 Four metal 4"-Square boxes with 1-gang metal plaster rings are roughed into a wall that will be covered with sheetrock. The plaster rings are 1/2" rise and the sheetrock is 5/8". Self-grounding 120-volt duplex receptacles are to be installed at each box. The home run is stubbed up out of the slab with PVC to hit the first box, and EMT is used to loop the other boxes together. The neutral, EGC, and ungrounded conductors are "pigtailed" in the first three boxes and are connected directly to the receptacle in the last box. Does the NEC® require the ground at the last box to be bonded to this box where the ground WAS bonded to the first box? Select one: a.Yes b.No - 2020 NEC: 250.148 The correct answer is: Yes