Exam 9: General Nec Requirements for Rough-In Wiring

Conductors used in residential wiring can be copper, aluminum, or copper-clad aluminum.

The fixed glass section of a sliding glass door unit is counted as regular wall space when determining receptacle placement in a room.

Type __________ cable should be used when running a cable underground to an outside pole light.

When Type NM or Type UF cables are used, the outside sheathing of the cable must extend at least 1/4 inch (6 mm) inside the box and beyond any cable clamp.

An electrical box must be installed at each conductor splice point, outlet point, switch point, junction point, or termination point where the wiring method is conduit or cable.

Receptacles that are installed to meet NEC Section 210.52 placement requirements are not permitted to be more than __________ feet above the floor.

A short piece of metal raceway is used to provide protection to a cable assembly.According to the NEC, this is permitted even though the metal raceway is not mechanically continuous.

When device boxes are installed in walls or ceilings with a combustible surface such as wood, the edge of the boxes must __________ the finished surface.

Sheetrock, a popular building material used to finish off walls and ceilings in residential and commercial construction, is also referred to as wallboard.

Where the opening to an outlet, junction, or switch point box is less than 8 inches in any dimension, each conductor must be long enough to extend at least __________ outside the opening.

In each attached garage, receptacle outlets must be located so that there is at least _____ receptacle outlet in each vehicle bay and not located more than _____ above the floor.

Explain the NEC requirements for outdoor receptacle placement at a one family dwelling.

Individual wall spaces of __________ feet or more in width are considered usable for the location of a lamp or appliance, and a receptacle outlet is required.

A receptacle outlet controlled by a wall switch is permitted to serve as a lighting outlet in kitchens.

A minimum of _________ communications outlet must be installed in all newly constructed dwelling units.

Boxes for floor receptacles must be specifically listed for that purpose and no other box type can be used in a floor installation.

Describe how a 4 AWG or larger wire is identified as a grounded conductor.

At least ____________________ inches of free conductor, measured from the point in the box where it emerges from its raceway or cable sheath, must be left at each outlet, junction, or switch point for the connection of luminaires or devices.

Section 300.20(A) requires conductors carrying alternating current and installed in ferrous (iron) metal boxes to be arranged to avoid heating the surrounding metal by magnetic induction.

Where one or more lighting outlet(s) are installed for interior stairways, there must be a wall switch to control the lighting outlet(s) at each floor level and landing, where the stairway between floor levels has __________ risers or more.