What is the maximum setting for a nontime delay fuse used to provide branch-circuit, short-circuit, and ground-fault protection for a 3-phase, 25 hp, 460 volt motor?

Where exposed to the weather, raceways enclosing service-entrance conductors shall be suitable for use in wet locations and _____________.

What is the minimum required height of the clear working space in front of a motor control center that is 7 ft. tall?

A clearly labeled emergency shutoff shall be installed at a point not less than ________ away from a hot tub.

What minimum size EMT is required to accommodate the following conductors if the raceway will be 24 in. or less in length?
4 – 250 kcmil, THWN
1 – 1/0 AWG, THWN

Boxes that enclose devices or utilization equipment supplied by 12 or 10 AWG conductors shall have an internal depth of not less than ____________.

What is the minimum calculated branch circuit load for 6 – 120 volt, 20 ampere rated duplex receptacle outlets installed in an office building?

Any room or location, within a health care facility, in which flammable anesthetics are stored shall be considered to be a _____________ location from floor to ceiling.

Where conductors carrying alternating current are installed in ferrous metal enclosures or ferrous metal raceways, they shall be arranged so as to avoid heating the surrounding ferrous metal by ________________.

A marina has 2 piers that are 60 ft. in length each. There are 8 boat slips on each side of each pier and each slip is equipped with a 30 ampere, 120 volt receptacle that provides shore power for boats. What minimum size 120/240 volt service is required for these receptacles?

Where a roof has a slope of not less than 4 in. in 12 in., communications cables shall have a vertical clearance of not less than ___________ from all points of roofs above which they pass.

Underground cable and conductors installed under a building shall be ___________.

Overhead conductors for festoon lighting shall not be smaller than ___________ unless the conductors are supported by messenger wires.

When using the optional method of service load calculations for a dwelling unit, what load would be added into the calculation for an electric clothes dryer with a nameplate rating of 4,200 watts?

Disconnecting means for hermetic refrigerant motor-compressors shall have an ampere rating not less than _________ of the nameplate rated-load current or branch-circuit selection current, whichever is greater.

For other than industrial establishments where conditions of maintenance and supervision ensure that only qualified persons service the installation, solid dielectric insulated conductors operating above ____________ volts in permanent installation shall be shielded.

Cords used for the connection of lighting accessories for use with office furnishings shall not exceed ________ in length.

What is the approximate resistance of a 3/0 AWG uncoated copper conductor that is 1,000 ft. in length?

What is the minimum calculated service load for 14 – 4,800 watt electric clothes dryers installed in an apartment complex?

What is the minimum volume of a metal 3 in. x 2 in. x 2 in. device box?

Outlets for heavy-duty lampholders shall be calculated at a minimum of _______________.

Which of the following statements is/are true regarding the use of snap switches rated 347 volts ac?
I. The ampere rating of the switches shall not be less than 30 amperes.
II. The switches are not allowed to control inductive loads.

The electromotive force that pushes 1 ampere of current through a resistance of 1 ohm is known as _______________.

When portable ladders are used to access an upper landing surface, the ladder side rails shall extend at least ______________ above the upper landing surface to which the ladder is used to gain access.

Safety nets shall be provided when workplaces are more than _____________ above the ground or water surface, or other surfaces where the use of ladders, scaffolds, catch platforms, temporary floors, safety lines, or safety belts is impractical.