STC EIT 260 Midterm LATEST VERSION 2025 Guaranteed pass!
The purpose of electrical symbols on plans is ____. - (ANSWER)to graphically represent
electrical products and systems
The National Electrical Code is a minimum ____ standard. - (ANSWER)Safety
The meaning of approved is ____. - (ANSWER)acceptable to the authority having jurisdiction
Article 100 Def.
As defined in Article 100, a dwelling unit has the following feature(s): ____. -
(ANSWER)permanent provisions for living, sleeping, cooking, and sanitation Article 100 Def.
Devices are equipment whose primary function is to carry current, not ____. - (ANSWER)utilize
electric energy Article 100 Def.
The NEC requires that a(n) ____ be installed at each conductor splice connection point. -
(ANSWER)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 ____. - (ANSWER)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. - (ANSWER)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. -
(ANSWER)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 ____. - (ANSWER)crawl space NEC 220.12
The 20-ampere appliance circuits required by NEC are permitted to serve no other loads, except
for - (ANSWER)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. -
(ANSWER)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. - (ANSWER)6 ft. NEC 210.52(A)(1)
Page 1 of 5
, A continuous load shall not exceed ____ of the rating of the branch circuit - (ANSWER)80%
The smallest wire size for which overcurrent protection is specified in the Code is ____. -
(ANSWER)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.
- (ANSWER)Stranded NEC 310.106(C)
Branch circuit conductors shall have an ampacity ____ the maximum to be served. -
(ANSWER)not less than NEC 210.19(A)
The rating of a branch circuit is determined by its ____. - (ANSWER)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 -
(ANSWER)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. - (ANSWER)correction factors
Article 210 applies to branch circuits, but branch-circuit calculations are covered in ____. -
(ANSWER)Article 220
Under certain circumstances, the grounded (neutral) conductors of a residential service ____
permitted to be sized smaller than the phase conductors. - (ANSWER)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 -
(ANSWER)60°C (140°F) NEC 334.80
When using individual conductors in raceway, all of the following colors of insulation are
permitted for the grounded conductor (neutral), except for ____. - (ANSWER)green with three
white stripes NEC 200.7(A)
Phase conductors 6 AWG and smaller ____ permitted to be re-identified as equipment ground
conductors using green paint, tape, or other effective means. - (ANSWER)Are Not NEC
210.5(B), NEC 250.119 and NEC 310.110(B)
The NEC requires that switching be done only in ____ conductors. - (ANSWER)ungrounded
NEC 404.2(A)
To avoid inductive heating in metallic raceways, the NEC requires that ____. - (ANSWER)all
circuit conductors be run in the same raceway NEC 300.3(B)
Page 2 of 5
The purpose of electrical symbols on plans is ____. - (ANSWER)to graphically represent
electrical products and systems
The National Electrical Code is a minimum ____ standard. - (ANSWER)Safety
The meaning of approved is ____. - (ANSWER)acceptable to the authority having jurisdiction
Article 100 Def.
As defined in Article 100, a dwelling unit has the following feature(s): ____. -
(ANSWER)permanent provisions for living, sleeping, cooking, and sanitation Article 100 Def.
Devices are equipment whose primary function is to carry current, not ____. - (ANSWER)utilize
electric energy Article 100 Def.
The NEC requires that a(n) ____ be installed at each conductor splice connection point. -
(ANSWER)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 ____. - (ANSWER)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. - (ANSWER)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. -
(ANSWER)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 ____. - (ANSWER)crawl space NEC 220.12
The 20-ampere appliance circuits required by NEC are permitted to serve no other loads, except
for - (ANSWER)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. -
(ANSWER)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. - (ANSWER)6 ft. NEC 210.52(A)(1)
Page 1 of 5
, A continuous load shall not exceed ____ of the rating of the branch circuit - (ANSWER)80%
The smallest wire size for which overcurrent protection is specified in the Code is ____. -
(ANSWER)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.
- (ANSWER)Stranded NEC 310.106(C)
Branch circuit conductors shall have an ampacity ____ the maximum to be served. -
(ANSWER)not less than NEC 210.19(A)
The rating of a branch circuit is determined by its ____. - (ANSWER)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 -
(ANSWER)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. - (ANSWER)correction factors
Article 210 applies to branch circuits, but branch-circuit calculations are covered in ____. -
(ANSWER)Article 220
Under certain circumstances, the grounded (neutral) conductors of a residential service ____
permitted to be sized smaller than the phase conductors. - (ANSWER)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 -
(ANSWER)60°C (140°F) NEC 334.80
When using individual conductors in raceway, all of the following colors of insulation are
permitted for the grounded conductor (neutral), except for ____. - (ANSWER)green with three
white stripes NEC 200.7(A)
Phase conductors 6 AWG and smaller ____ permitted to be re-identified as equipment ground
conductors using green paint, tape, or other effective means. - (ANSWER)Are Not NEC
210.5(B), NEC 250.119 and NEC 310.110(B)
The NEC requires that switching be done only in ____ conductors. - (ANSWER)ungrounded
NEC 404.2(A)
To avoid inductive heating in metallic raceways, the NEC requires that ____. - (ANSWER)all
circuit conductors be run in the same raceway NEC 300.3(B)
Page 2 of 5
