New Mexico CID Residential Electrical Inspector Examination

Per NEC 2020 110.26(A)(1) Condition 1, what is the minimum working-space depth in front of a 120/240-volt dwelling panelboard with exposed live parts on one side and no live or grounded parts on the other side?

• A24 inches
• B30 inches
• C36 inches
• D42 inches

Per NEC 2020 110.26(A)(2), the width of the working space in front of a dwelling panelboard shall be the width of the equipment or which minimum, whichever is greater?

• A30 inches
• B36 inches
• C48 inches
• D24 inches

Per NEC 2020 110.26(A)(3), what is the minimum height of the working space in front of indoor service equipment that is less than 6½ feet tall?

• A5 feet
• B6 feet
• C6 feet 6 inches
• D8 feet

Per NEC 2020 110.26(E)(1)(a), indoor dedicated equipment space above a panelboard extends from the floor to a height of 6 feet above the equipment or to which other limit, whichever is lower?

• AThe structural ceiling
• BThe bottom of any sprinkler piping
• C8 feet above the finished floor
• DThe finished ceiling gypsum

Unless the equipment is listed and marked for 75°C terminations, NEC 2020 110.14(C)(1) generally requires conductor ampacity for circuits rated 100 amperes or less to be based on which temperature column?

• A60°C
• B75°C
• C90°C
• D110°C

Per NEC 2020 Article 100, which statement best matches the definition of readily accessible?

• ACapable of being reached quickly without tools other than keys, climbing over or under, o…
• BLocated anywhere inside the dwelling if a portable ladder is available
• CLocated in an attic if the scuttle is within 6 feet of a hallway
• DCapable of being reached only after removing a locked panel cover with tools

Per NEC 2020 110.12(A), unused openings in boxes, raceways, and cabinets, other than those intended for the operation of equipment, shall be which of the following?

• ALeft open if they are smaller than ½ inch
• BCovered with tape
• CEffectively closed
• DFilled with expanding foam

Per NEC 2020 110.3(B), listed or labeled equipment shall be installed and used in accordance with which of the following?

• AAny instructions included in the listing or labeling
• BOnly the manufacturer’s marketing brochure
• CThe newest NEC edition, even if that edition is not adopted
• DThe inspector’s field preference

Per NEC 2020 110.26(D), illumination shall be provided for indoor working spaces about which of the following?

• AService equipment, switchboards, switchgear, panelboards, or motor control centers
• BOnly panelboards located in bedrooms
• COnly outdoor meter sockets
• DOnly services rated 400 amperes or more

Per NEC 2020 110.2, conductors and equipment required or permitted by the Code shall be acceptable only if they are which of the following?

• AApproved
• BImported
• CField-fabricated by the installer
• DPainted to match the finish

Per NEC 2020 110.24, field marking of service equipment with the available fault current is required for which of the following?

• AService equipment in other than dwelling units
• BOnly 15- and 20-ampere branch-circuit panelboards
• COnly communications equipment racks
• DAll dwelling-unit services

Per NEC 2020 300.4(A)(1), where a cable or raceway is installed through bored holes in wood members, the edge of the hole shall be at least which distance from the nearest edge of the wood member unless a listed steel plate is used?

• A¾ inch
• B1 inch
• C1¼ inches
• D2 inches

Per NEC 2020 110.14(A), terminals for more than one conductor and terminals used to connect aluminum shall be which of the following?

• AIdentified for the purpose
• BLimited to 14 AWG copper only
• CFilled with ordinary household silicone
• DPermitted on any listed breaker by default

A 120/240-volt dwelling panel has exposed live parts on one side and grounded metal parts on the other side of the working space. Per NEC 2020 Table 110.26(A)(1), which condition and minimum depth apply?

• ACondition 2, 3½ feet
• BCondition 3, 4 feet
• CCondition 1, 4 feet
• DCondition 1, 3 feet

Per NEC 2020 230.79(C), the service disconnecting means for a one-family dwelling shall have a rating of not less than which of the following?

• A100 amperes, 3-wire
• B150 amperes, 3-wire
• C200 amperes, 3-wire
• D60 amperes, 3-wire

Per NEC 2020 210.11(C)(1), a dwelling unit shall be provided with how many 20-ampere small-appliance branch circuits?

• AAt least two
• BAt least three
• COne 15-ampere circuit is sufficient
• DAt least one

Per NEC 2020 210.11(C)(2), the laundry receptacle outlet(s) required by 210.52(F) shall be supplied by which of the following?

• AAt least one additional 20-ampere branch circuit with no other outlets
• BEither of the two small-appliance branch circuits
• CThe bathroom 20-ampere circuit
• DA 15-ampere general-purpose lighting circuit

Per NEC 2020 210.11(C)(3), bathroom receptacle outlets required by 210.52(D) shall be supplied by at least one 20-ampere branch circuit. That circuit is permitted to supply only which additional loads, if any, in a single bathroom?

• AReceptacle outlets in other rooms on the same floor
• BThe required outdoor receptacle
• COther equipment within the same bathroom
• DKitchen countertop receptacles

Per NEC 2020 210.11(C)(4), attached garages and detached garages with electric power shall be provided with at least one 120-volt, 20-ampere branch circuit that supplies which of the following?

• AThe receptacle outlets required by 210.52(G)(1) and no other outlets, except as permitted
• BThe laundry and garage receptacles together
• CAny combination of dwelling general-purpose receptacles
• DOnly the garage lighting outlets

Per NEC 2020 210.52(A)(1), receptacle outlets in dwelling habitable rooms shall be installed so that no point measured horizontally along the floor line of any wall space is more than which distance from a receptacle outlet?

• A12 feet
• B4 feet
• C6 feet
• D8 feet

Per NEC 2020 210.52(C)(1), receptacle outlets shall be installed so that no point along the wall line of a kitchen countertop is more than which distance from a receptacle outlet in that space?

• A48 inches
• B12 inches
• C24 inches
• D36 inches

Per NEC 2020 210.8(A), GFCI protection for personnel is required for 125-volt through 250-volt dwelling receptacles supplied by single-phase branch circuits rated 150 volts or less to ground in which of the following locations?

• AClosets and hallways only
• BBedrooms only
• CBathrooms, garages, outdoors, crawl spaces, basements, kitchens, and laundry areas, among…
• DLiving rooms only if they contain a wet bar

Per NEC 2020 210.12(A), AFCI protection is required for 120-volt, single-phase, 15- and 20-ampere dwelling branch circuits supplying outlets or devices in which of the following?

• AKitchens, family rooms, dining rooms, living rooms, bedrooms, closets, hallways, and laun…
• BBathrooms, garages, and outdoors only
• COnly bedrooms
• DOnly unfinished basements

Using the NEC 2020 220.82 optional method, what is the calculated service load for a 1,500 sq ft one-family dwelling with two small-appliance circuits, one laundry circuit, an 8,000 VA range, a 5,000 VA dryer, a 4,500 VA water heater, a 1,200 VA dishwasher, and 4,000 VA of air conditioning (no electric heat)?

• A21,080 VA (87.8 A at 240 V), so a 100-ampere service meets the calculated load
• B27,700 VA (115.4 A at 240 V), so a 125-ampere service is the minimum
• C31,700 VA (132.1 A at 240 V), so a 150-ampere service is the minimum
• D15,000 VA (62.5 A at 240 V), so a 60-ampere service is permitted

Using the NEC 2020 standard method, what is the general lighting demand for an 1,800 sq ft dwelling after applying Table 220.42? Include two small-appliance circuits and one laundry circuit at 1,500 VA each.

• A5,415 VA
• B9,900 VA
• C3,000 VA
• D7,425 VA

Per NEC 2020 Table 220.55 Column C, the feeder or service demand for one household electric range rated 12 kW or less is which of the following?

• A3 kW
• BThe full 12 kW nameplate
• C8 kW
• D5 kW

Per NEC 2020 220.54, the load for a household electric clothes dryer in a dwelling-unit feeder or service calculation shall be the nameplate rating or which minimum, whichever is larger?

• A3,000 VA
• B4,000 VA
• C5,000 watts
• D8,000 watts

Per NEC 2020 220.61(B), the feeder or service neutral load for a household electric range, wall-mounted oven, counter-mounted cooking unit, or electric dryer may be calculated at which percentage of the ungrounded-conductor demand?

• A100 percent
• B50 percent
• C70 percent
• D83 percent

Per NEC 2020 230.85, for one- and two-family dwelling units all service conductors shall terminate in a disconnecting means installed in which location?

• AOnly at the serving utility transformer
• BAny readily accessible indoor location
• CA readily accessible outdoor location
• DThe attic above the service panel

Per NEC 2020 230.67, all services supplying dwelling units shall be provided with a surge protective device that is which Type, and where shall it be located?

• AAny TVSS strip plugged into a kitchen receptacle
• BType 3 only, anywhere on a branch circuit
• CType 1 or Type 2, integral with or immediately adjacent to the service equipment
• DType 4 only, at the meter socket

Per NEC 2020 210.52(H), a dwelling hallway of which length or more shall have at least one receptacle outlet?

• A6 feet
• B8 feet
• C10 feet
• D12 feet

Per NEC 2020 210.52(C)(2), before New Mexico’s amendment, the number of receptacle outlets required for an island countertop or work surface is based on which of the following?

• AOne receptacle for the first 9 sq ft or fraction thereof, plus one for every additional 1…
• BOne receptacle for every 2 linear feet of island
• CNo receptacles are permitted on islands
• DOne receptacle only if the island contains a sink

Per NEC 2020 210.70(A)(1), at least one wall-switch-controlled lighting outlet shall be installed in which dwelling rooms?

• AEvery habitable room, kitchen, and bathroom
• BGarages only
• CAttics used solely for storage
• DCrawl spaces with no equipment

Per NEC 2020 Table 310.12, if no adjustment or correction factors apply, what is the minimum conductor size permitted for a 200-ampere, 120/240-volt, single-phase dwelling service that supplies the entire dwelling load?

• A3 AWG copper or 1 AWG aluminum
• B1 AWG copper or 2/0 AWG aluminum
• C2/0 AWG copper or 4/0 AWG aluminum
• D4/0 AWG copper or 250 kcmil aluminum

Per NEC 2020 240.4(D), unless specifically permitted in 240.4(E) or (G), the overcurrent protection shall not exceed 15 amperes for 14 AWG copper, 20 amperes for 12 AWG copper, and which rating for 10 AWG copper?

• A40 amperes
• B25 amperes
• C30 amperes
• D35 amperes

Which of the following is a standard ampere rating listed in NEC 2020 240.6(A)?

• A55 amperes
• B65 amperes
• C70 amperes
• D85 amperes

Per NEC 2020 240.4(B), the next higher standard overcurrent device rating is permitted when all of the stated conditions are met and the overcurrent device rating does not exceed which value?

• A100 amperes
• B400 amperes
• C800 amperes
• D1200 amperes

Per NEC 2020 240.21(B)(1), a 10-foot feeder tap is permitted only if, among other conditions, the tap conductors have an ampacity not less than the load and not less than which percentage of the rating of the overcurrent device protecting the feeder?

• A10 percent
• B25 percent
• C50 percent
• D83 percent

Per NEC 2020 240.24(E), overcurrent devices shall not be located in which rooms of a dwelling unit or guest suite of a hotel or motel?

• ALaundry rooms
• BKitchens
• CBathrooms
• DBedrooms

Per NEC 2020 210.20(A) and 215.3, the overcurrent device for a continuous load shall have a rating of not less than which of the following?

• A150 percent of the continuous load
• B100 percent of the continuous load
• C125 percent of the continuous load plus 100 percent of the noncontinuous load
• D80 percent of the continuous load

A 10 AWG copper THHN conductor in a dwelling feeder raceway has a Table 310.16 75°C ampacity of 35 amperes. Unless 240.4(E) or (G) applies, what is the maximum standard overcurrent device permitted?

• A30 amperes
• B35 amperes
• C40 amperes
• D50 amperes

Per NEC 2020 240.24(D), overcurrent devices shall not be located near easily ignitable material, such as in which of the following?

• AClothes closets
• BKitchens
• CAttached garages
• DUnfinished basements

Per NEC 2020 250.52(A)(5), a rod electrode shall be not less than which length?

• A4 feet
• B6 feet
• C8 feet
• D10 feet

Per NEC 2020 250.53(A)(2), a single rod, pipe, or plate electrode shall be supplemented by an additional electrode unless which condition is met?

• AThe utility provides a grounded service conductor
• BThe service is 100 amperes or less
• CA single electrode has a resistance to earth of 25 ohms or less
• DThe building is wood-frame

Per NEC 2020 250.53(A)(3), a supplemental rod, pipe, or plate electrode shall be spaced not less than which distance from the first electrode?

• A8 feet
• B10 feet
• C3 feet
• D6 feet