Practice test missed 3
Rigid metal conduit (RMC) shall be securely fastened within _____ ft of each outlet box, junction box, device box, cabinet, conduit body, or other conduit termination.
3
Where Type LFNC conduit is installed in lengths exceeding _____ ft, the conduit shall be securely fastened at intervals not exceeding 3 ft and within 12 in. on each side of every outlet box, junction box, cabinet, or fitting.
6 ft
Where raceways or cables are exposed to direct sunlight on or above rooftops and where the distance above the roof to the bottom of the raceway is less than _____ in., a temperature adder of 60°F shall be added to the outdoor temperature to determine the applicable ambient temperature for application of the correction factors in Table 310.15(B)(1) or Table 310.15(B)(2).
7/8"
Where installed in raceways, conductors _____ AWG and larger shall be stranded, unless specifically permitted or required elsewhere in the NEC.
8
Where a luminaire stud or hickey is present in the box, _____ allowance in accordance with Table 314.16(B) shall be made for each type of fitting, based on the largest conductor present in the box.
A single volume
The electric utility grounds the primary and secondary neutral conductor to the earth at multiple locations for the purpose of reducing the _____ of the return current path.
Ac resistance
A motor can be provided with combined overcurrent protection using a single protective device to provide branch-circuit _____ protection where the rating of the device provides the overload protection specified in 430.32.
All of these : short circuit / ground fault/ motor overload
Article 404 covers all _____ used as switches operating at 1,000V and below, unless specifically referenced elsewhere in this Code for higher voltages
All of these: switches/ circuit breakers/ switching devices
Where corrosion protection is necessary for ferrous metal equipment and the conduit is threaded in the field, the threads shall be coated with a(an) _____ electrically conductive, corrosion-resistant compound.
Approved
Ground-fault protection devices protect equipment from damaging ground-fault currents by opening all ungrounded conductors of the faulted circuit. This device will also protect persons.
False
Type UF cable can be used in commercial garages.
False
When replacing automatically controlled receptacles, if automatic control is no longer required, the receptacle and any associated receptacles marked in accordance with 406.3(E) shall be replaced with a receptacle and faceplate marked in accordance with 406.3(E).
False
Where equipment grounding is required, a separate equipment grounding conductor shall be installed in the Type PVC conduit except where the _____ is used to ground equipment as permitted in 250.142.
Grounded connector
Smooth-sheath Type MC cable with an external diameter not greater than 3/4 in. shall have a bending radius not less than _____ times the external diameter of the cable.
Ten
A multiwire circuit is a circuit consisting of two or more ungrounded conductors (hot wires) that have a potential difference between them, and having an equal difference of potential between each ungrounded conductor and the grounded (neutral) conductor.
True
Nonlocking 15A and 20A, 125V and 250V receptacles installed in damp locations shall be listed as _____.
Weather resistant
_____ drainage openings not smaller than 1/8 in. and not larger than 1/4 in. in diameter shall be permitted to be installed in the field in boxes or conduit bodies listed for use in damp or wet locations.
approved
If a motor disconnecting means is a motor-circuit switch, it shall be rated in _____.
horsepower
Bends in LFNC shall be made so that the conduit will not be damaged and the internal diameter of the conduit will not be effectively reduced. Bends can be made _____.
manually without auxiliary equipment
Mechanical continuity of raceways, cable armors, and cable sheaths as required by 300.12 does not apply to _____.
short sections of raceways used for support or protection of cable assemblies
