Editor March 14, 2026 NEC 600-695 NEC Quizzes Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 0% Article 600-695 Part03 This quiz consists of 50 carefully selected questions covering NEC Articles 600 through 695, which provide essential guidelines for special equipment (Article 600) and specific applications. These sections of the National Electrical Code focus on the safety, installation, and operation of equipment like electric signs (Article 600), elevators (Article 620), electric vehicle power transfer systems (Article 625), information technology equipment (Article 645), sensitive electronic equipment (Article 647), and critical systems like solar photovoltaic systems (Article 690) and fire pumps (Article 695). The randomly generated questions ensure a thorough assessment of your understanding, reinforcing key principles related to special equipment requirements, disconnect means, grounding and bonding for specific technologies, overcurrent protection, and the integration of these specialized systems into the building electrical infrastructure. Some topics may reappear in different contexts to strengthen comprehension and application. Your feedback is invaluable! If you notice any discrepancies or have suggestions for improvement, please report them. Your insights help maintain the accuracy and effectiveness of this learning tool. The article addresses lifting equipment powered by electricity. 1 / 52 What is the scope of NEC Article 610 (610.1)? a. Covers only manual hoists. b. Includes temporary lifting equipment. c. Covers electrical installations for cranes, hoists, monorail hoists, and runways. d. Applies to conveyor belts and elevators. Incorrect. The scope specifically includes electrical installations for cranes and hoists. Correct! The article covers electrical installations for cranes, hoists, and related systems. Article 610 focuses on the electrical equipment and wiring used with cranes, hoists, and monorail hoists, along with their associated runways. The voltage must match standard distribution systems. 2 / 52 What is the required nominal system voltage for electrified truck parking spaces (626.4(B))? a. 120, 120/240, 208Y/120, 240, or 480Y/277 volts. b. Any voltage depending on the truck's requirements. c. 240 volts only. d. Up to 600 volts. Incorrect. Only specified nominal system voltages are permitted. Correct! Standard nominal system voltages ensure compatibility and safety. NEC specifies standard nominal system voltages for electrified truck parking spaces to ensure compatibility and safety. Adequate clearance ensures safety during maintenance. 3 / 52 What clearance is required for controls that may need servicing while energized (610.57)? a. At least 2 feet in all directions. b. At least 2.5 feet in the direction of access. c. No clearance is required if servicing is done by qualified personnel. d. Clearance is required only for controls over 50 amps. Incorrect. The required clearance is 2.5 feet in the direction of access. Correct! The minimum clearance is 2.5 feet for energized control servicing. A minimum of 2.5 feet of clearance is required in the direction of access to allow safe servicing of energized controls. Coordination ensures continuity in multi-elevator systems. 4 / 52 What is the selective coordination requirement for overcurrent devices (620.62)? a. Devices must operate independently. b. Selective coordination is not required in elevators. c. Only applies to single-car installations. d. Devices must coordinate to prevent unnecessary power interruptions. Incorrect. Selective coordination ensures uninterrupted power for unaffected elevators. Correct! Coordination prevents unnecessary interruptions. Selective coordination allows unaffected systems to remain operational during a fault, critical in multi-elevator scenarios. Adequate permanent lighting is crucial for safe maintenance. 5 / 52 What is the requirement for illumination in elevator machine rooms (620.23(A))? a. Lighting can be temporary and portable. b. A permanent lighting fixture must provide at least 19 foot-candles (200 lux) at the floor. c. Illumination is required only near access points. d. Illumination must be provided only during maintenance activities. Incorrect. Permanent lighting providing 19 foot-candles is required. Correct! Permanent lighting with at least 19 foot-candles is necessary. Elevator machine rooms must have permanent lighting fixtures providing at least 19 foot-candles (200 lux) to ensure safety during maintenance and inspections. Think about the manufacturing process and structure of ribbon silicon in PV modules. 6 / 52 Ribbon silicon provides no definite shape for a PV module a. True b. False Incorrect. Ribbon silicon does provide a definite shape for a PV module. Correct! Ribbon silicon does provide a definite shape for a PV module. Ribbon silicon does provide a definite shape for a PV module. Ribbon silicon refers to a type of silicon that is drawn into thin, flat ribbons rather than being cut from cylindrical ingots. This manufacturing process allows for more efficient use of silicon material and results in a definite shape that can be utilized in the construction of PV modules. These ribbons are then assembled into solar cells and modules with defined shapes and sizes. Traveling cables face mechanical stress during operation. 7 / 52 What protection is required for traveling cables between elevator cars and hoistways (620.24)? a. They can be left unprotected if they are insulated. b. Protection is required only for outdoor installations. c. Traveling cables require no additional protection. d. They must be protected against mechanical damage. Incorrect. Protection against mechanical damage is mandatory for traveling cables. Correct! Traveling cables must be protected against mechanical damage. Traveling cables must be adequately protected against mechanical damage due to their constant movement during elevator operation Marking provides critical safety information. 8 / 52 What is the required marking for disconnecting means in elevators (620.51(D))? a. No marking is required. b. Must indicate fault current and include recalibration dates. c. Marking is optional for disconnects under 300 volts. d. Requires only the operating voltage. Incorrect. Comprehensive marking requirements must be met. Correct! Marking must indicate fault current and recalibration details. Disconnecting means must display fault current levels, recalibration dates, and be durable to ensure safety and compliance. High voltage circuits require additional labeling and precautions. 9 / 52 What is the voltage limitation for power circuits under Article 620 (620.3(A))? a. No limitation if labeled properly. b. 1000 volts for branch circuits and feeders. c. Limited to 300 volts. d. Restricted to 480 volts for motors. Incorrect. The voltage limit for these circuits is 1000 volts. Correct! 1000 volts is the maximum voltage allowed. Power circuits in elevators, escalators, and other systems must not exceed 1000 volts, with additional warning labels for voltages exceeding 600 volts. This exemption simplifies installations in constrained spaces. 10 / 52 How must auxiliary gutters in machine rooms be installed (620.35)? a. They require additional grounding. b. They must not exceed 10 feet in length. c. Auxiliary gutters are not allowed in machine rooms. d. They are exempt from length and conductor limits. Incorrect. Auxiliary gutters are exempt from these restrictions. Correct! Length and conductor limits do not apply to auxiliary gutters in machine rooms. Auxiliary gutters used in machine rooms are not subject to length restrictions or conductor limits under Article 366. Safety standards ensure that all conductors can be quickly disconnected. 11 / 52 What type of disconnecting means is required for escalators (620.51(B))? a. Disconnecting means are not required for escalators. b. An externally operable switch that disconnects all ungrounded conductors. c. A remote switch located outside the building. d. A circuit breaker accessible only to maintenance personnel. Incorrect. A disconnecting means that operates all ungrounded conductors is mandatory. Correct! The disconnecting means must isolate all ungrounded conductors. Escalators must have an externally operable switch that can disconnect all ungrounded conductors to ensure quick and safe power isolation. This article focuses on modular systems used in office setups. 12 / 52 What does NEC Article 605 primarily cover (605.1)? a. Electrical systems in all office spaces. b. Temporary lighting for office renovations. c. Electrical equipment, lighting accessories, and wiring systems installed in office furnishings. d. Freestanding furniture like chairs and tables. Incorrect. This article specifically addresses systems within office furnishing Correct! Article 605 focuses on electrical systems within office furnishings. Article 605 governs the installation and use of electrical equipment, wiring systems, and lighting accessories integrated within office furnishings, excluding standalone furniture not connected to a system. Both AC and DC systems share the same voltage limit under this article. 13 / 52 What voltages are specified for EV charging systems (625.4)? a. Up to 1000 volts for both AC and DC systems. b. No voltage limitations are specified. c. Limited to 480 volts for fast charging. d. Up to 600 volts for AC systems and 750 volts for DC systems. Incorrect. The maximum voltage specified is 1000 volts for AC and DC. Correct! The maximum allowable voltage is 1000 volts. NEC Article 625 allows for nominal voltages of up to 1000 volts AC or DC for supplying EV charging equipment. Listing ensures that the equipment meets safety standards. 14 / 52 What is required for EVSE equipment concerning safety listings (625.6)? a. All EVSE must be listed for charging, power export, or bidirectional current flow. b. Equipment must only be listed if used outdoors. c. Listing is required only for DC fast chargers. d. No listing is required for portable equipment. Incorrect. Listing is required for all EVSE, regardless of use or portability. Correct! All EVSE must be listed for their intended purp All EVSE must be listed for their intended function, whether for charging, power export, or bidirectional current flow, ensuring compliance with safety requirements. Flexibility and protection are critical for motor connections. 15 / 52 How must conductors be protected in flexible connections to motors (610.11(C))? a. Supported by contact wires. b. Placed in flexible metal conduit, liquidtight flexible conduit, or nonmetallic raceways. c. Left exposed for flexibility. d. Installed in raceways only. Incorrect. Conductors must be placed in appropriate flexible conduits or raceways. Correct! Flexible conduits or raceways are required for motor connections. Flexible conductors must be installed in conduits or raceways that ensure both flexibility and protection against mechanical damage. Ventilation depends on the type of batteries and charging equipment. 16 / 52 What ventilation is required for EVSE in enclosed spaces (625.52)? a. Only garages with more than one EV require ventilation. b. Passive ventilation is sufficient for all enclosed spaces. c. No ventilation is needed for modern EV batteries. d. Mechanical ventilation is required if the equipment specifies it. Incorrect. Ventilation depends on equipment and battery specifications. Correct! Mechanical ventilation is required if specified by the manufacturer. Mechanical ventilation is required for enclosed spaces if specified by the EVSE manufacturer to prevent ignitable hydrogen gas mixtures. GFCI protection ensures personnel safety in wet conditions. 17 / 52 How must portable signs in wet locations be equipped (600.10(C))? a. Portable signs are not permitted in wet locations. b. Must use hard-service cords and include a GFCI device within 12 inches of the plug. c. Can use any cord if protected by a circuit breaker. d. Must use cords rated for damp locations. Incorrect. Hard-service cords and GFCI devices are required. Correct! These features ensure safety for portable signs in wet locations. Portable signs in wet locations must use hard-service cords and have a GFCI device integrated within 12 inches of the attachment plug to prevent shock hazards. This article addresses lifting and transport equipment powered by electricity. 18 / 52 What is the scope of NEC Article 620 (620.1)? a. Covers electrical installations for escalators and conveyor belts. b. Covers electrical installations for elevators, dumbwaiters, escalators, moving walks, platform lifts, and stairway chairlifts. c. Applies to mechanical systems only. d. Includes industrial conveyor systems. Incorrect. This article is specific to lifting and transport equipment, not conveyors. Correct! It covers electrical installations for elevators and similar systems. Article 620 applies to the electrical equipment and wiring for a range of vertical and horizontal transportation systems. Conductor fill limits ensure heat dissipation. 19 / 52 What is the maximum conductor fill allowed in raceways (620.33)? a. Fill is not limited in raceways. b. 40% c. 50% d. 60% Incorrect. The conductor fill limit for raceways is 40%. Correct! The limit is 40% of the raceway’s cross-sectional area. The conductor fill in raceways must not exceed 40% to allow for proper heat dissipation and system reliability. This requirement ensures safety during lightning events. 20 / 52 What is the purpose of lightning protection bonding for elevator rails (620.37(B))? a. To serve as the primary grounding conductor. b. To equalize potential and prevent side flashes. c. Bonding is optional for elevator rails. d. To replace other grounding methods. Incorrect. Bonding is mandatory to equalize potential and prevent hazards. Correct! Bonding ensures safe potential equalization. Bonding prevents dangerous potential differences that could cause side flashes during a lightning strike. Length restrictions ensure manageability and safety. 21 / 52 What is the maximum allowed cord length for parking space supply equipment (626.25(B)(3))? a. 20 feet. b. 30 feet in all cases. c. 25 feet unless a cable management system is used. d. No limit is specified. Incorrect. The maximum cord length is 25 feet unless a management system is used. Correct! The cord length limit is 25 feet without a management system Cord length is limited to 25 feet unless a cable management system is in place to prevent tripping hazards and strain on connectors. EVSE safety depends on protection against electric shock hazards. 22 / 52 What personnel protection is required for all EVSE (625.22)? a. No protection required for systems under 60 volts. b. A listed personnel protection system for electric shock prevention. c. Optional protection for bidirectional systems. d. Standard GFCI devices for all connections. Incorrect. Personnel protection is mandatory for all EVSE. Correct! A listed system must protect against electric shock. All EVSE must include a listed personnel protection system to guard against electric shock during use. This article focuses on systems pre-manufactured for ease of installation. 23 / 52 What does NEC Article 604 primarily cover (604.1)? a. Temporary lighting systems for construction sites. b. Permanent wiring installations in commercial buildings. c. Only residential wiring methods for modular homes. d. Field-installed wiring using off-site manufactured subassemblies for branch, control, signaling, and communication circuits. Incorrect. Article 604 specifically addresses manufactured wiring systems for various circuit types. Correct! This article focuses on manufactured subassemblies for multiple circuit types. Article 604 governs field-installed wiring using off-site manufactured subassemblies for branch circuits, remote-control, signaling, and communication circuits in accessible areas. Continuous loads require additional protection for safe operation. 24 / 52 What is the overcurrent protection requirement for EVSE (625.41)? a. Rated at not less than 125% of the maximum continuous load. b. No overcurrent protection is specified. c. Protection is required only for continuous loads. d. Must be rated at 100% of the equipment’s maximum load. Incorrect. The overcurrent protection must account for continuous loads at 125%. Correct! Protection must be rated at 125% of the continuous load. Overcurrent protection devices for EVSE must be rated at not less than 125% of the maximum continuous load to ensure safe operation and compliance. The size depends on the spacing of supports. 25 / 52 What conductor size is required for contact conductors spaced 30 feet apart (610.14(D))? a. Any size is acceptable if securely fastened. b. 4 AWG. c. 6 AWG. d. 8 AWG. Incorrect. The correct conductor size for 30-foot spacing is 6 AWG. Correct! 6 AWG is the required size for 30-foot spaced contact conductors. Contact conductors spaced 30 feet apart must have a minimum size of 6 AWG to ensure mechanical strength and proper electrical capacity. Cable management systems allow for extended lengths. 26 / 52 What is the maximum cord length for EVSE without a cable management system (625.17(C))? a. 25 feet. b. No maximum is specified. c. 15 feet. d. 10 feet. Incorrect. The maximum allowable length without a cable management system is 25 feet. Correct! 25 feet is the maximum length allowed without a cable management system. The total usable length for EVSE cords and cables cannot exceed 25 feet unless equipped with a cable management system. Luminaire wiring is restricted to specific cord types and lengths for safety. 27 / 52 What type of wiring is permitted in manufactured wiring systems for luminaires (604.100(A)(3))? a. Listed flexible cords with minimum 12 AWG conductors, not exceeding 6 feet in length. b. Hard-service cords of any length. c. Any type of flexible cord not exceeding 12 AWG. d. Flexible cords of any size if the luminaire is listed. Incorrect. Specific size and length requirements apply to flexible cords for luminaires. Correct! The cords must meet specific requirements for size and length. Flexible cords suitable for hard usage, with a minimum size of 12 AWG and a maximum length of 6 feet, are allowed to connect luminaires to manufactured wiring systems. Lighting and ventilation circuits have specific protection requirements. 28 / 52 What is required for branch circuits supplying car lighting and ventilation (620.22)? a. They can share circuits with the elevator motor. b. Branch circuits for lighting are not required. c. Circuit protection is optional for low-power devices. d. They must be on separate circuits and protected by overcurrent devices. Incorrect. Separate circuits and overcurrent protection are required. Correct! Independent circuits with overcurrent protection are necessary. Branch circuits for lighting and ventilation must be independent, and overcurrent devices should be installed to prevent circuit overloads. Safety in maintenance and operation requires a reliable disconnection system. 29 / 52 What are the requirements for runway contact conductor disconnecting means (610.31)? a. Disconnects are not required for small hoists. b. Only the phase conductors must be disconnectable. c. The disconnecting means must open all ungrounded conductors simultaneously and be operable from the ground. d. Must be lockable but do not need to be in view of the runway conductors. Incorrect. All ungrounded conductors must be disconnectable simultaneously. Correct! The disconnect must open all ungrounded conductors and be ground-operable. Disconnecting means for runway contact conductors must simultaneously open all ungrounded conductors, be lockable in the open position, and be operable from ground level. Flexible connections may affect the required clearance. 30 / 52 What is the minimum working clearance required around electrical equipment in hoistways (620.5)? a. 3 feet in all directions. b. 1 foot of clearance is sufficient. c. No clearance is required if equipment is fixed. d. Clearance requirements depend on flexible equipment positioning. Incorrect. Clearance requirements depend on the flexibility of equipment connections. Correct! Flexible positioning can satisfy clearance requirements. Flexible leads allow repositioning of equipment to meet clearance requirements under specific conditions. This article deals with external electrical systems for trucks at parking spaces. 31 / 52 What is the primary scope of NEC Article 626 (626.1)? a. Covers electrical equipment and conductors external to trucks for connecting nonpropulsion elements to a supply b. Covers only truck-mounted equipment. c. Applies only to refrigerated units in warehouses. d. Covers all equipment related to truck propulsion. Incorrect. The article specifically addresses external systems for truck parking spaces. Correct! The scope covers external power supply systems for trucks. Article 626 governs electrical systems external to trucks that supply power to nonpropulsion elements, such as refrigeration units and heating systems, while parked. Listing ensures safety and compatibility. 32 / 52 What is required for signal systems in elevators (620.41)? a. Wireless systems are permitted without restrictions. b. Signal systems must be hard-wired only. c. Signals do not require listing if used indoors. d. Signal systems must comply with Article 725 and be listed. Incorrect. Signal systems must be listed and follow Article 725. Correct! Listing and compliance with Article 725 are required. Signal systems must be listed and comply with the requirements of Article 725 to ensure safety and proper operation in elevator installations. Accessibility ensures quick disconnection during emergencies. 33 / 52 How must disconnects for platform lifts be located (620.53)? a. Within sight of the lift and accessible without obstructions. b. Within sight of the lift or enclosed in a locked cabinet. c. No specific location requirements exist for disconnects. d. In any location if labeled properly. Incorrect. Disconnects must be accessible and within sight of the lift. Correct! The disconnect must be within sight and unobstructed. Disconnects for platform lifts must be within sight of the lift and easily accessible to ensure safety and efficient operation. Listing ensures components meet safety and performance standards. 34 / 52 What are the listing requirements for manufactured wiring systems (604.6)? a. Listing is only needed for systems installed outdoors. b. No listing is required if components are factory-made. c. All manufactured wiring systems and associated components must be listed. d. Listing is only required for flexible cords used in the system. Incorrect. All components of manufactured wiring systems require listing for safety compliance. Correct! Listing is mandatory for all manufactured wiring systems and components. Manufactured wiring systems and their components must be listed to comply with safety standards like ANSI/UL 183. The cord type must handle exposure to various environmental conditions. 35 / 52 What type of cord is permitted for portable EVSE (625.17(A))? a. Hard-service cord, junior hard-service cord, or portable power cable listed for oil, damp, and wet locations b. Only cables listed for outdoor use. c. Any cord listed for damp locations. d. Flexible cords without specific listing. Incorrect. The cord must meet specific listing requirements for durability and safety. Correct! The cord must be listed for hard service and environmental exposure. Portable EVSE cords must be hard-service or junior hard-service cords, or portable power cables listed for oil resistance and suitability in damp and wet locations. Specific requirements ensure safety and compatibility for freestanding furnishings. 36 / 52 How must freestanding office furnishings be connected to the building’s electrical system (605.9)? a. Using any available receptacle with no restrictions. b. By a hard-wired connection only. c. By a flexible cord and plug, meeting specific conditions such as a maximum length of 2 feet and a separate circuit. d. By a single flexible cord and plug, no longer than 10 feet. Incorrect. Freestanding furnishings must follow specific cord and circuit requirements. Correct! Flexible cords and separate circuits are required for freestanding furnishings. Freestanding office furnishings may be connected using a flexible cord and plug, provided the cord is no longer than 2 feet, the receptacle is on a separate circuit serving only the furnishing, and other conditions are met. This ensures adequate power for truck systems. 37 / 52 What is the minimum calculated load per parking space for feeder/service load calculations (626.11(A))? a. 11 kVA. b. 20 kVA. c. 10 kVA. d. 15 kVA. Incorrect. The minimum load is specified as 11 kVA per space. Correct! 11 kVA is the minimum calculated load per parking space. The calculated load for each parking space must be at least 11 kVA to support nonpropulsion electrical loads, including HVAC and refrigeration systems. Consider the process that describes how a PV cell generates voltage when exposed to sunlight. 38 / 52 The voltage production in a PV cell is called the Photovoltaic Effect a. True b. False Incorrect. The voltage production in a PV cell is indeed called the Photovoltaic Effect. Correct! The voltage production in a PV cell is called the Photovoltaic Effect. The voltage production in a photovoltaic (PV) cell is known as the Photovoltaic Effect. This effect occurs when light photons are absorbed by the semiconductor material in the PV cell, which excites electrons and creates an electric current. The photovoltaic effect is the underlying physical mechanism that allows solar cells to convert sunlight into electrical energy, making it a crucial concept in understanding PV technology. Grounding ensures an effective fault current path. 39 / 52 How must exposed non-current-carrying metal parts of cranes and hoists be grounded (610.61)? a. By using the crane’s frame as the grounding conductor. b. By bonding all parts to the equipment grounding conductor of the branch circuit. c. No bonding is required for moving parts. d. Only bonded if connected to moving parts. Incorrect. Bonding all parts to the grounding conductor is mandatory. Correct! All parts must be bonded to the equipment grounding conductor. All exposed non-current-carrying metal parts of cranes and hoists must be bonded to the equipment grounding conductor to ensure safety. The cords must withstand harsh environmental conditions. 40 / 52 What type of power cords are required for truck parking space supply equipment (626.25(B))? a. Any cords suitable for indoor use. b. Extra-hard usage cords rated 600 volts, resistant to temperature extremes, wet locations, and chemicals. c. Flexible cords without specific ratings. d. Cords rated for dry conditions only. Incorrect. Only extra-hard usage cords rated for specific conditions are permitted. Correct! These cords meet the durability and safety standards required. Power cords must be extra-hard usage, rated for 600 volts, and suitable for wet and harsh conditions to ensure durability and safety. GFCI protection reduces the risk of electrical shock. 41 / 52 What GFCI protection is required for receptacles in pits, hoistways, and cars (620.6(A))? a. Required only for outdoor installations. b. No protection is required. c. Class A GFCI protection is required for all receptacles. d. Protection is optional if maintenance personnel are qualified. Incorrect. GFCI protection is mandatory for safety. Correct! Class A GFCI protection is required for these receptacles. All 125-volt, single-phase, 15- and 20-ampere receptacles must have Class A GFCI protection to safeguard personnel. The length must balance flexibility and safety. 42 / 52 What is the maximum cord length allowed for cord-and-plug connections on lighting accessories in office furnishings (605.6(B)(1))? a. 12 feet. b. 6 feet. c. Cord length is not specified. d. 9 feet. Incorrect. The maximum length for cords is 9 feet. Correct! The maximum cord length is 9 feet. Cord-and-plug connections for lighting accessories in office furnishings must not exceed 9 feet to ensure manageability and safety. Control circuits must adhere to specific voltage limits for safety. 43 / 52 What voltage limitations apply to control circuits (620.41(B))? a. 300 volts maximum. b. Voltage limitations depend on the type of control equipment. c. 480 volts if labeled properly. d. Limited to 600 volts nominal. Incorrect. The voltage limit for control circuits is 600 volts nominal Correct! Control circuits are limited to 600 volts nominal. Control circuits in elevator systems must not exceed 600 volts nominal, ensuring compliance with safety standards. Disconnecting means ensure safety and accessibility during maintenance. 44 / 52 What type of disconnecting means is required for EVSE rated above 60 amps or 150 volts to ground (625.43)? a. Must be located inside the EVSE enclosure. b. Readily accessible, lockable in the open position, and marked with its location if remote. c. Optional for residential installations. d. Not required if the equipment is permanently wired. Incorrect. The disconnecting means must meet specific accessibility and safety criteria. Correct! Disconnecting means must be accessible and lockable. A readily accessible disconnecting means, lockable in the open position and marked if remote, is required for EVSE rated above 60 amps or 150 volts to ground. Wiring must be protected against physical damage. 45 / 52 What wiring methods are permitted in elevator hoistways (620.21(A))? a. Only rigid metal conduits are allowed. b. Conduits, flexible cables, or listed equipment components protected from damage. c. Unrestricted wiring methods. d. Only liquidtight conduits are allowed. Incorrect. Several wiring methods are permitted when protected from damage. Correct! Various protected wiring methods are allowed. A range of wiring methods, including flexible conduits and cables, is permitted if they are properly protected. Emergency systems ensure accessibility during power outages. 46 / 52 What requirements apply to emergency power systems for elevators (620.91)? a. Must operate only the lighting circuits. b. Can use portable generators without additional controls. c. Must provide power to at least one elevator for emergency use. d. Emergency power systems are optional. Incorrect. Emergency power must support at least one elevator. Correct! Emergency power is required for at least one elevator. Emergency power systems must be capable of powering at least one elevator to ensure accessibility during power outages, particularly in buildings with emergency access needs. Environmental conditions influence the choice of enclosures. 47 / 52 How must control panels for elevators be protected (620.55)? a. Enclosures are only required for outdoor installations. b. They must be housed in general-purpose enclosures. c. They must be installed in listed enclosures suitable for the environment. d. No special protection is needed for control panels. Incorrect. Listed enclosures appropriate for the environment are required. Correct! Control panels must be installed in listed enclosures. Elevator control panels must be housed in enclosures that are listed and suitable for the environmental conditions they are exposed to, ensuring safety and functionality. Grounding ensures safety for wireless power transfer systems. 48 / 52 What grounding requirements apply to wireless power transfer equipment (WPTE) (625.101)? a. Grounding is optional for all WPTE. b. The primary pad base plate must be nonferrous metal and connected to the equipment grounding conductor unless double insulated. c. Only required in outdoor locations. d. Grounding must meet general NEC Article 250 requirements only. Incorrect. Grounding or double insulation is mandatory for WPTE. Correct! Grounding is required unless the system is double-insulated. The primary pad base plate must be grounded unless the equipment employs a double-insulation system, ensuring safe operation in various environments. Disconnects ensure quick isolation for safety. 49 / 52 What disconnecting means is required for electrified truck parking spaces (626.22(D))? a. Disconnects are optional if circuit breakers are present. b. Required only for spaces serving refrigerated units. c. Must only be accessible to qualified personnel. d. Must be lockable in the open position and readily accessible. Incorrect. Disconnects are mandatory for accessibility and safety. Correct! Disconnects must be lockable and accessible. A disconnecting means must be installed at a readily accessible location, lockable in the open position, for each parking space. This article addresses the interface between EVs and premises wiring. 50 / 52 What is the primary scope of NEC Article 625 (625.1)? a. Covers all vehicles, including industrial forklifts. b. Focuses only on DC charging systems. c. Covers electrical conductors and equipment connecting EVs to premises wiring for charging and power export. d. Includes all electrical equipment within automotive vehicles. Incorrect. This article specifically covers EV charging and power transfer systems. Correct! It focuses on connecting EVs to premises wiring. Article 625 governs the electrical conductors and equipment connecting EVs to premises wiring, including bidirectional current flow and power export capabilities. GFCI protection minimizes the risk of electrical shock. 51 / 52 How must receptacles in electrified truck parking spaces be protected (626.24(D))? a. Protection is optional for outdoor receptacles. b. Receptacles must include GFCI protection for personnel. c. Protection is only required for spaces serving refrigerated units. d. Receptacles must be rated for 480 volts or less. Incorrect. GFCI protection is mandatory for all receptacles in these systems. Correct! GFCI protection is essential for personnel safety. All receptacles must be equipped with ground-fault circuit interrupter (GFCI) protection to ensure personnel safety. Grounding ensures a safe path for fault currents. 52 / 52 What grounding requirements apply to elevator car frames (620.82)? a. Bonding is required only in hazardous locations. b. Frames must be bonded per Article 250. c. Grounding is optional if other systems are bonded. d. No grounding is required. Incorrect. Bonding to Article 250 standards is mandatory. Correct! Grounding must comply with Article 250. Elevator car frames must be bonded to meet grounding requirements specified in Article 250. Your score is LinkedIn Facebook Twitter 0% Restart quiz Exit Rate & Review Thank you for taking the time to leave us a review! Your feedback is greatly appreciated and helps us improve our services. 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