Exam 4: Cables

Holes must be bored so that the edge of the hole is at least ____.

A widely accepted practice is to identify 3-phase ungrounded (hot) conductors as ____ in 208/120 volt, 4-wire, wye-connected systems.

Cables not installed on the face do not require ____.

Electrical installation openings that penetrate into or through fire-resistant-rated structures must be ____.

A cable assembly's ____ conductor can be used as a switch loop (leg) in single-pole, three-way, and four-way switch installations, even though it is an ungrounded (hot) conductor.

Protection is required for cables located within 6 ft (measured both vertically and horizontally) of the ____.

Nonmetallic-sheathed cable passing through holes in metal framing must be protected by ____ covering all metal edges

Type AC cable must have a bending radius at least ____ times the diameter of the cable.

Ducts used to transport dust, loose stock, or flammable vapors shall not contain ____ of any type.

A key provision found in most of the cable articles states that the cable must not be installed where subject to ____.

Cables running horizontally (or diagonally) are considered supported and secured when passing through a(n) ____.

Exposed runs of Type AC cable installed on the underside of joists must be supported at ____.

Type AC cable shall have a(n) ____.

Cable installed under a building must be ____ unless the wiring method is Type MC or Type MI cable that is identified for direct burial.

Generally, ungrounded (hot) conductors can be any color except ____.

Cables entering or exiting conduit used for support or protection against physical damage require fittings on the conduit ends to prevent ____.

Cover measurement commences at the top surface of any direct burial wiring method and ends at the ____ of the finished grade's top surface.