STC EIT 260 Midterm Test Questions Solved Correctly Latest Update 2025 Graded A+

STC EIT 260 Midterm Test Questions Solved Correctly Latest Update 2025 Graded A+ The purpose of electrical symbols on plans is ____. - Answers to graphically represent electrical products and systems The National Electrical Code is a minimum ____ standard. - Answers Safety The meaning of approved is ____. - Answers acceptable to the authority having jurisdiction Article 100 Def. As defined in Article 100, a dwelling unit has the following feature(s): ____. - Answers permanent provisions for living, sleeping, cooking, and sanitation Article 100 Def. Devices are equipment whose primary function is to carry current, not ____. - Answers utilize electric energy Article 100 Def. The NEC requires that a(n) ____ be installed at each conductor splice connection point. - Answers box or conduit body NEC 300.15 In order that the connections inside an outlet box remain accessible, the NEC requires that a surface extension from an outlet box cover be made using ____. - Answers flexible conduit NEC 314.22 Exception Unused knockouts in boxes, spaces for ____________________ in a panel, meter socket enclosures, and all other similar equipment must be effectively closed. - Answers circuit breakers NEC 110.12(A) & 408.7 Where noncombustible surface material is used on walls or ceilings, outlet boxes must be mounted so that they will be set back not more than ____ from the face of the surface material. - Answers 1/4 in. NEC 314.20 All of the following are included when calculating the usable area of a dwelling to compute the required lighting load, except for ____. - Answers crawl space NEC 220.12 The 20-ampere appliance circuits required by NEC are permitted to serve no other loads, except for - Answers clock outlets and receptacles that are installed to plug in the cords of gas-fired ranges, ovens, or counter-mounted cooking units NEC 210.52(B)(2) Exception 1 and 2 NEC Article 210 provides ____ guidelines for locating receptacle outlets in residences. - Answers mandatory Article 210 Wall receptacles in a habitable room must be placed so they are no further than ____ feet from any point along the wall. - Answers 6 ft. NEC 210.52(A)(1) A continuous load shall not exceed ____ of the rating of the branch circuit - Answers 80% The smallest wire size for which overcurrent protection is specified in the Code is ____. - Answers 14 AWG NEC 210.24, Table 210.24, and 240.3(D)(3) The NEC requires that conductors 8 AWG and larger must be ____ when installed in a raceway. - Answers Stranded NEC 310.106(C) Branch circuit conductors shall have an ampacity ____ the maximum to be served. - Answers not less than NEC 210.19(A) The rating of a branch circuit is determined by its ____. - Answers overcurrent protective device (fuse or circuit-breaker) The total rating of utilization equipment fastened in place, other than luminaires (lighting fixtures), shall not exceed ____ percent of the branch-circuit ampere rating, where lighting units, cord and plug connected utilization equipment not fastened in place, or both, are also supplied - Answers 50% NEC 210.23(A)(2) Table 310.15(B)(2)(a) gives allowable ampacities of copper conductors with various types of insulation. When conductors will be used in ambient temperatures exceeding 30°C (86°F), the ____ for the table must be applied. - Answers correction factors Article 210 applies to branch circuits, but branch-circuit calculations are covered in ____. - Answers Article 220 Under certain circumstances, the grounded (neutral) conductors of a residential service ____ permitted to be sized smaller than the phase conductors. - Answers are NEC 215.2(A)(2) and NEC 230.42(C) The ampacity of Type NM cable shall be in accordance with ____ conductor temperature rating - Answers 60°C (140°F) NEC 334.80