Which of the following would be an example of a material that may cause an area to be classified as a Class III location?

What is the total resistance of a circuit containing 2 – 20 ohm resistors wired in parallel?

Overcurrent devices shall be readily accessible and shall be installed so that the center of the grip of the operating handle of the switch or circuit breaker is not more than ____________ above the floor or working platform.

Cord-and-plug connected vending machines, manufactured after January 1, 2005, shall include a ground-fault circuit interrupter as an integral part of the attachment plug or be located within _________ of the attachment plug.

Adjustment factors for more than 3 current-carrying conductors installed in a raceway only apply when the raceway exceeds __________ in length.

Color coding shall be permitted to identify intrinsically safe conductors where they are colored ____________ and no other conductors are identified in the same manner.

What is the maximum number of 250 kcmil, XHHW conductors allowed in a 3 in. flexible metal conduit that is over 24 in. long?

Which of the following statements regarding cable trays is/are true?
I. Cable tray systems shall not be permitted to support service-entrance conductors.
II. Conductors other than service-entrance conductors shall be permitted to be installed in a cable tray with service-entrance conductors provided a solid fixed barrier is installed to maintain separation.

What is the minimum calculated branch circuit load for the lighting of a 6,700 ft.² church?

A metallic raceway that is intended to be mounted to the surface of or suspended from a structure, with associated accessories for the installation of electrical conductors and cables is called a ____________.

Where independent support wires are used to support cables and raceways above suspended ceilings, the support wires _________________.

A location in which flammable gases or vapors are or may be present in the air in quantities sufficient to produce explosive or ignitable mixtures is classified as a ____________ location.

Outside feeder conductors on poles shall have a separation of not less than _____________ where not placed on racks or brackets.

Type SJ flexible cable is listed for ___________.

A disconnecting means of adequate capacity for at least _________ of the input required for the momentary rating or 100% of the input required for the long-time rating of X-ray equipment, whichever is greater, shall be provided in the supply circuit.

Cables and conductors for which of the following systems are allowed to be attached to a service mast?

Which of the following statements is/are true regarding grounded conductors?
I. Each grounded conductor shall terminate within a panelboard in an individual terminal.
II. Grounded conductors of circuits with parallel conductors shall be permitted to terminate in a single terminal within a panelboard if the terminal is identified for the application.

What is the minimum calculated feeder neutral load for a 4,350 watt electric clothes dryer installed in a dwelling unit?

What is the allowable ampacity of a 10 AWG, THHN, copper conductor?

Evaluate the following statement: All conductors of a multiwire circuit shall originate from the same panelboard.

Openings around penetrations of optical fiber cables through fire-resistant-rated walls shall be __________ using approved methods to maintain the fire resistance rating.

How many 10 AWG conductors are allowed in a 4 in. x 1 ½ in. metal square box?

When a generator set driven by a prime mover is used as back-up power supply for an emergency system, a time-delay feature permitting a ____________ setting shall be provided to avoid retransfer in case of short-time reestablishment of the normal source.

What is required before a conduit body is allowed to contain a splice?

Type GTO cable shall have a minimum temperature rating of ____________.