Which of the following cable types is an acceptable substitute for a Type CL3R cable?

Where a dc system consists of a 3-wire balancer set with overcurrent protection, the grounding electrode conductor shall not be smaller than _____________.

Fixed ladders in a manhole intended for personnel entry shall _______________.

Type NMC cable is not allowed to be used in which of the following applications?

How many 15 ampere branch circuits are required for the lighting of a 16 ft. x 70 ft. mobile home?

What is the approximate area of a 4/0 AWG, XHHW, compact aluminum conductor?

A transformer has a primary to secondary voltage ratio of 600:20. If the current in the primary is 60 amps, what is the current in the secondary?

What is the allowable ampacity of each conductor where 12 current-carrying, 3/0 AWG, THW, copper conductors are installed in a raceway?

In every bedroom of a dwelling unit, receptacle outlets shall be installed so that no point measured horizontally along the floor line of any wall space is more than _____________ from a receptacle outlet.

The 2008 National Electrical Code refers to the intermittent operation of equipment in which the load conditions are regularly recurrent as __________________.

Exposed live parts of motors and controllers operating at __________ or more between terminals shall be guarded against accidental contact.

The momentary rating of X-ray equipment is a rating based on an operating interval that does not exceed ___________.

A section of 1 in. liquidtight flexible metal conduit that is not over 6 ft. in length may be used as an equipment grounding conductor for circuits rated not over _____________.

A disconnecting means shall be provided within sight of and within __________ of the operator’s station of an amusement ride at a fair.

Plate type grounding electrodes shall expose not less than ____________ of surface to exterior soil.

Where electrical switchgear operates at a nominal voltage to ground of 7,200 volts, the depth of the working space in the direction of live parts shall not be less than _______________ if a concrete wall is located on the other side of the working space.

Type PVC conduit is allowed within Class I, Division 1 hazardous locations when encased in a concrete envelope a minimum of 2 in. thick and provided with not less than ________ of cover measured from the top of the conduit to grade.

Raceways shall be used only as a means of support for other raceways, cables, or nonelectrical equipment where ______________.

Which of the following service conductors would be considered outside of a building where installed _______________.

What is the full-load current of a 1-phase, 230 volt, 5 hp motor?

What minimum size THWN copper conductors are required for use as service conductors for a dwelling unit supplied with a single-phase, 120/240 volt, 225 amp service?

The ampacity of the conductors from the generator terminals to the first distribution device containing overcurrent protection shall not be less than ________ of the nameplate current rating of the generator.

A building or other structure shall be supplied by only one service unless the additional service supplies _______________.

Derating factors are not required to be applied for conductors installed in sheet metallic auxiliary gutters where the number of current-carrying conductors is _______ or less.

In general applications, Class 3 conductors must be separated by at least _________ from power conductors.