The correction factor for a 60° C rated conductor installed in an ambient temperature of 107° F is ___________.

Which of the following remedies would not be permissible to stop objectionable current over an electrical system?

What is the minimum total calculated service load for a 1,000 watt dishwasher, a 4,500 watt water heater, and a 750 watt garbage disposal installed in a dwelling unit?

What is the approximate resistance of a 12 AWG, stranded, uncoated copper conductor that is 274 ft. in length?

A conduit contains 2 sets of 3-phase, 4-wire circuits. The circuits are wired using 8 AWG, THWN, copper conductors and are feeding fluorescent lighting loads. What is the allowable ampacity of each conductor in this raceway?

Which of the following statements regarding motor controller enclosures is/are true?
I. Where 1 wire per terminal is used, the minimum wire bending space at the terminals is 6 in. if the conductors are 1/0 AWG.
II. Where provisions for 2 or more wires per terminals exist, the minimum wire-bending space shall be in accordance with the requirements of Article 312.

Which of the following statements about service equipment is/are true?
I. Service equipment rated 1,000 volts or less shall be marked to identify it as being suitable for use as service equipment.
II. Individual meter socket enclosures shall not be considered service equipment.

Fixed lighting located over lanes through which vehicles are commonly driven in a commercial garage shall be located not less than ____________ above floor level, unless of the totally enclosed type.

Feeder conductors for two or more branch circuits supplying X-ray units shall have an ampacity of not less than 100% of the momentary demand rating of the two largest X-ray apparatus plus __________ of the momentary ratings of other X-ray apparatus.

What is the minimum calculated service load for 1 – 8 ½ kW electric cooktop and 2 – 5 kW electric ovens installed in a dwelling unit, if all 3 of the appliances are located in the same room and supplied by the same branch circuit?

Nonmetallic auxiliary gutters shall be supported and secured at intervals not to exceed __________ and at each end or joint, unless listed for other support intervals.

480/277 volt overhead service conductors passing over commercial areas not subject to tuck traffic shall have a vertical clearance above grade of not less than _____________.

Where angle or U pulls are made, the distance between each raceway entry inside of a box or conduit body and the opposite wall shall not be less than __________ times the trade size of the largest raceway in a row, when the raceway contains 4 AWG or larger conductors.

Service equipment in ________________ shall be legibly marked in the field with the maximum available fault-current.
I. dwelling units
II. commercial and industrial occupancies

Snap switches rated 20 amperes or less directly connected to aluminum conductors shall be listed and marked ___________.

Overload protection for a 3-phase, 40 hp, 460 volt motor, with a nameplate rating of 50.3 amperes has been selected in accordance with N.E.C. requirements but the motor will not start. What is the maximum setting for the separate overload device if the motor has a marked service factor of 1.15?

The wiring space of enclosure for switches or overcurrent devices shall be permitted for conductors feeding through the cabinet to other enclosures where the total of all conductors installed at any cross section of the wiring space does not exceed ____________ of the cross-sectional area of that space.

Portable structures at a carnival shall be maintained not less than __________ in any direction from overhead conductors operating at 600 volts or less, except for the conductors supplying the portable structure.

Which of the following is not allowed to be marked on a CL2P cable?

Conductors in pull boxes or junction boxes having any dimension over ___________, shall be cabled or racked up in an approved manner.

Where separate services or feeders supply a building and are required to be connected to a grounding electrode(s), ________________ shall be used.

What is the maximum setting for an inverse time circuit breaker used to provide branch-circuit, short-circuit, and ground-fault protection for a 3-phase, 15 hp, 208 volt motor?

The total opposition to the flow of current in an ac circuit is called ___________.

Regulations for crane hoist signals can be found in the ___________.

Testing of a lineman’s safety strap or lanyard shall be conducted by attaching a _______________ canvas bag of sand to one end and attaching the other end to a rigid support.