ELEC CODE 3 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026

ELEC CODE 3 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026 Electric signs and metal equipment of outline lighting systems other than the portable and double insulated types shall be grounded by connecting them to the ____ of the supplying branch circuit or feeder. - Answers Equipment grounding conductor The equipment grounding conductor for an electric sign or outline lighting system must be a wire type. True or false? - Answers False. It can be. Where a 30 amp branch circuit for field installed skeleton neon tubing is installed using PVC conduit, what is the minimum size copper equipment grounding conductor required for grounding metal parts associated with this installation? - Answers 10 AWG What is the minimum size bonding conductor required for bonding metal parts associated with the high-voltage secondary circuit for a neon sign or outline lighting system? - Answers 14 AWG copper Bonding connections for metal parts of signs and outline lighting systems are permitted to be made using sheet metal screws. True or false? - Answers False. They are not permitted. Where an auxiliary grounding electrode is installed for an electric sign on a pole, it shall be in addition to the required equipment grounding conductor with the branch circuit supplying the sign. True or false? - Answers True The bonding conductor used for bonding metal parts or dead metal of signs an outline lighting systems together and to the branch circuit equipment grounding conductor shall not be smaller than... - Answers 14 AWG copper A distance of at least blank must be maintained from a nonmetallic conduit containing a high-voltage circuit operating at 100 Hz or less. - Answers One and a half inches A distance of at least _____ must be maintained from a nonmetallic conduit containing a high-voltage circuit operating at above 100 Hz. - Answers One and three-quarter inches Remote parts of a §or outline lighting system supplied by class two power supply are required to be bonded to an equipment grounding conductor of the branch circuit supplying the system. True or false? - Answers False. They are not required. The NEC requires all exposed non current carrying metal parts of ___ to be grounded and bonded. Choices: cranes, mono rail hoists, any associated pendant controls for cranes, all of the above. - Answers All of the above And equipment grounding conductor for a crane shall only be a copper insulated wire sized at not less than 10 AWG . True or false? - Answers False A trolley frame and bridge are not considered grounded through the bridge and trolley wheels and tracks; a separate _____ is required around the wheel to track contact. Choices: equipment grounding conductor, grounding electrode conductor, system bonding jumper, bonding jumper. - Answers Bonding jumper Information technology equipment is required to be grounded by the connection to an equipment grounding conductor of the branch circuit, or be double insulated. True or false? - Answers True The specific grounding and bonding requirements for an information technology room are located in which article of the NEC? Choices: article 250, 200, 100, 645 - Answers Article 645 A signal reference structure installed in information technology room is required to be connected to a _____. Voice is: grounding electrode, equipment grounding conductor, neutral conductor, grounding electrode conductor. - Answers Equipment grounding conductor Equipment and receptacles for sensitive electronic equipment must be grounded by any EGC run with the supply circuit conductors and terminated on the equipment grounding terminal boss of the paddleboard that is marked...______. - Answers Technical equipment ground For sensitive electronic equipment the ungrounded conductors have a voltage of 120 V between them, and from each ungrounded conductor to the neutral of such systems, the voltage is____. - Answers 60 v All receptacles use with systems covered in article 647 must have me configurations and must be identified for use with this type of system. True or false? - Answers True Any electrical equipment located with in this many feet of the inside walls of a swimming pool or other specified body of water must be grounded. - Answers 5 feet Equipment associated with pools and similar installations is generally required to be connected to an insulated copper equipment grounding conductor. True or false? - Answers true Through wall lighting assemblies and wet dry or no niche luminaires are required to be connected to an insulated copper equipment grounding conductor installed with the circuit conductors sized according to table 250.122, but no smaller then ____? - Answers 12 AWG Wet niche luminaires that are supplied by a flexible cord or cable shall have all their exposed noncurrent carrying metal parts grounded by a _____ equipment grounding conductor that is an integral part of the cord or cable. - Answers Insulated copper The components identified in 680.26B shall be connected to a bonding grid with a ____ conductor, insulated, covered or bare, not smaller than 8 awg. - Answers Solid copper The national electrical code clarifies that the bonding required for the swimming pool must be installed to reduce voltage gradients in the pool area as described in article 680. True or false? - Answers True A solid copper bonding conductor no smaller than _____ must be run from the pool bonding grid system to the double insulated pool pump motor location for connection to any replacement motor that is not a double insulated type. - Answers 8 awg Bonding for an indoor spa or hot tub has to be accomplished by which of the following methods? Choices: interconnected fittings or threaded metal piping, metal to metal contact on common framing, solid copper conductor size 8 AWG or larger, any of the above. - Answers Any of the above The bonding conductor for a hydromassage bathtub shall not be smaller than ____ solid copper - Answers Eight AWG Which of the following metal parts of therapeutic tubs are required to be bonded together? Choices: any metal fittings within or attached to the tub structure, any metal parts of electrical equipment associated with the tub water circulating system including pump motors, any metal sheathed cables and raceways and metal piping that are within 5 feet of the inside walls of the tub and not separated from the tub by a permanent barrier, all of the above. - Answers All of the above Regardless of the photovoltaic system voltage, all equipment, metal frames, module frames, and conductor enclosures must be grounded in accordance with 250.134 and 250.136 A. True or false? - Answers True The size of the equipment grounding conductor for PV source and output circuits must be in accordance with 690.45 A or B and the general rule is to size the EGC with PV output or source circuits using ___. - Answers Table 250.122 The equipment grounding conductor for PV output or source circuits can be no smaller than eight AWG copper. True or false? - Answers False, 14 AWG For PV systems that are standalone units, the grounding electrode system has to meet the provisions in part eight of article 250, and the DC system grounding electrode conductor is required to be as large as the largest output conductor supplied by the PV system, or at least ____ whichever is larger. - Answers 8 AWG Photovoltaic DC systems that are grounded have to be connected to a grounding electrode system in accordance with _______, and for ungrounded DC systems, the grounding electrode requirements of 250.169 apply. - Answers 250.166