When multiple rod, pipe, or plate grounding electrodes are installed, they must be spaced not less than _________ apart.

What is the maximum rating allowed for the overcurrent protective device for an appliance rated 12.2 amperes if the overcurrent protection rating is not marked on the appliance?

An electric water heater is supplied by 10 AWG, XHHW aluminum conductors. What is the maximum rating allowed for the overcurrent device protecting this circuit?

Transformers and electronic power supplies for electric signs shall have a secondary circuit current rating of not more than __________.

Which of the following statements is/are true regarding radio and television equipment?
I. Each conductor of a lead-in from an outdoor antenna shall be provided with a listed antenna discharge unit.
II. Aluminum alloy lead-in conductors for antenna systems are allowed.

A fuse or an overcurrent trip unit of a circuit breaker shall be connected in ____________ with each ____________ conductor.

Electrical nonmetallic tubing shall be allowed within spaces of a church with a finish rating if the raceway is installed concealed within walls, floors, and ceilings that provide a thermal barrier of material that has at least a ____________ finish rating.

The conductors in Type IGS cable shall be ___________.

A dwelling unit has an attached 2 car garage and a detached 3 car garage. How many total receptacle outlets are required in these garages?

What is the minimum calculated service neutral load for a 12 kW electric range installed in a dwelling unit?

What is the maximum rating for the separate overload protection of a 7 ½ motor with a nameplate rating of 36.4 amperes and a marked service factor of 1.15?

Ground rings used as a grounding electrode shall consist of at least 20 ft. of bare copper conductor not smaller than ____________.

Class 1 power-limited circuits shall be supplied from a source that has a rated output of not more than ____________.

A continuous load is a load where the maximum current is expected to continue for _________ or more.

Branch circuit conductors installed within ___________ of a ballast shall have an insulation temperature rating not lower than 90° C.

Where only Class 1 circuit conductors are installed in a raceway, ampacity adjustment factors shall apply only if ______________.

What is the approximate area of an aluminum 750 kcmil, THWN conductor?

The work space about electrical switchgear shall be clear and extend from the grade, floor, or platform to a height of _________ or the height of the equipment, whichever is greater.

Overcurrent protection for branch circuits supplying continuous loads shall be not less than the noncontinuous load plus __________ of the continuous load.

The most common nominal cell voltage for a nickel-cadmium type battery is __________ per cell.

The nameplate of an arc welder must provide all of the following information except for ___________.

A bank has an 800 amp service installed that is supplied with 2 sets of 500 kcmil copper ungrounded service entrance conductors connected in parallel. What minimum size copper grounding electrode conductor is required for the sole connection to the concrete-encased electrode?

Schedule 80 refers to ________________.

Lifelines used in rock-scaling operations must be minimum of ____________ wire core manila rope when used in areas where the rope will be subjected to cutting or abrasion.

All pulling and tensioning equipment for use with overhead power lines shall be ________________.