What is the efficiency of a 15 horsepower, 3-phase, 230 volt motor connected to a watthour meter reading 10,630 watts?

Only live-line tools having a manufacturer’s certification to withstand a minimum test of ___________ per foot of length for ______________ when the tool is made of wood shall be used.

No more than ____________ gallons of flammable liquids shall be stored in a room outside of an approved storage cabinet.

What is the 40% area of a 1 ½ in. x 1 ½ in. strut-type channel raceway?

A location protected from weather and not subject to saturation with water or other liquids but subject to moderate degrees of moisture is referred to by the N.E.C. as a ________________.

What is the minimum total calculated service load for a 1,000 watt dishwasher, a 4,500 watt water heater, a 1,800 watt garage door opener, and a 750 watt garbage disposal installed in a dwelling unit?

Which of the following statements is/are true regarding motor controllers?
I. A motor controller shall open all conductors to the motor.
II. A controller with a straight voltage rating shall not be permitted to be applied in a circuit with a slash rating.

Transformer secondary conductors for field installed neon tubing, rated 1,000 volts or less, shall not be smaller than __________.

When possible, a separation of at least ________ shall be maintained between communications cables on buildings and lightning conductors.

What is the maximum number of 10 AWG, THWN conductors allowed in a section of ¾ in. EMT that is 19 in. long?

What is the allowable ampacity of a 14 AWG, Type SJ flexible cable when 2 of the conductors are current-carrying?

Overhead service conductors operating at 240 volts passing over residential property and driveways shall have a vertical clearance above grade of not less than _____________.

Which of the following statements is/are true regarding equipotential planes in agriculture buildings?
I. Equipotential planes shall not be connected to the electrical grounding system.
II. The bonding conductor used in an equipotential plane shall not be smaller than 6 AWG.

Cable trays shall include fittings or other suitable means for _______________.

All metal underground water piping in direct contact with the earth for _________ or more and electrically continuous to the points of connection to the grounding electrode conductor shall be used as a grounding electrode.

Rigid stems longer than 12 in. used to suspend pendant luminaires installed within Class I, Division 2 hazardous locations shall be braced against lateral displacement at a level not more than ____________ above the lower end of the stem.

Motors associated with swimming pools shall be permitted to employ cord-and-plug connections utilizing flexible cords not longer than ___________.

What is the maximum rating allowed for the overcurrent protective device for a single-phase, 240 volt, 4,500 watt, water heater?

When more than one driving machine disconnecting means for an elevator is supplied by a single feeder, the overcurrent protective devices in each disconnecting means shall be selectively coordinated with __________________.

How many 300 kcmil, XHHW aluminum conductors are allowed in a ladder cable tray with an interior width of 16 in.?

Foyers in dwelling units that are not part of a hallway and that have an area that is greater than _____________ shall have a receptacle located in each wall space 3 feet more in width.

What is the minimum calculated feeder load for 200 duplex receptacle outlets installed in a retail store?

For a portable motor rated __________ or less, the controller shall be permitted to be an attachment plug and receptacle or cord connector.

Isolated metal parts associated with a permanently installed swimming pool that are not over __________ in any dimension and do not penetrate into the pool structure more than 1 in. shall not require bonding.

An enclosure that contains a luminaire and is supported by entering raceways shall be supported by __________ conduit(s) threaded wrenchtight into the enclosure or hub(s).