A 20 ft. extension ladder is leaned against the side of a building. How far away from the base of the building should the foot of the extension ladder be?

Property and equipment are sometimes referred to as ____________ and are not normally consumed in the operation of a business.

When a company discovers an error on a previously filed Form 941, the company must _____________.

What is the power consumed by a 15 kW, 1-phase, 240 volt heater connected to a 1-phase, 208 volt circuit?

All hoistway entrance bars and gates shall be painted with _________________.

Completed I-9 forms must be kept on file by employers for at least ______________ after the date of hire or for one year after the date employment ends, whichever is later.

When determining the spacing of receptacle outlets in a dwelling unit, a wall space is considered any space ____________ or more in width and unbroken along the floor line by doorways and similar openings, fireplaces, stationary appliances, and fixed cabinets that do not have countertops or similar work surfaces.

Transformers and electronic power supplies for electric signs shall be permitted in attics provided there is an access door at least ___________ in size.

Feeder conductors supplying 6 elevators are allowed to have a demand factor of _________ applied.

In land areas subject to tidal fluctuation, the electrical datum plane is a horizontal plane __________ above the highest tide level for the area occurring under normal circumstances.

Nonmetallic surface extensions shall be secured in place by approved means at intervals not exceeding _________.

When a separate overload relay is used to provide overload protection for a hermetic refrigerant motor-compressor, the device shall be set to trip at not more than ___________ of the motor-compressor rated-load current.

A 1 ½ in. rigid metal conduit that is 36 ft. in length contains 4 – 8 AWG, THHN conductors. How many 6 AWG, RHW conductors, without an outer covering, can be added?

Each electric space-heating cable shall be marked with the identifying name or identification symbol, catalog number, and ratings in __________.
I. volts and watts
II. volts and amperes

Ground-fault protection of equipment shall be provided for solidly grounded wye electric services of more than 150 volts phase to ground but not exceeding 1,000 volts phase-to-phase for each service disconnect rated _______________ or more.

The residual voltage of a capacitor, rated over 1,000 volts, shall be reduced to 50 volts, nominal, or less within _______ after the capacitor is disconnected from the source of supply.

In which of the following electrical circuits is it prohibited from reducing the capacity of the neutral conductor?

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, 10 hp, 230-volt wound-rotor motor?

What is the allowable ampacity of each conductor where 8 current-carrying, 1/0 AWG, RHW, copper conductors are installed in a raceway?

What minimum size THW copper conductors are required for the 1-phase supply conductors of a phase converter that supplies variable loads if the nameplate input load is 23 amps?

Which of the following statements is/are true regarding emergency systems?
I. Batteries used to supply emergency illumination shall have a capacity to supply and maintain the total load at not less than 87 ½% of the nominal battery voltage for a period of at least 1 ½ hours.
II. Branch circuits serving emergency lighting circuits shall not be part of a multiwire branch circuit.

The overhead conductors between the serving utility and the service point is referred to by the N.E.C. as the _______________.

Splices and taps within a metal wireway shall not fill the wireway to more than __________ of its area at that point.

Which of the following statements regarding manufactured wiring systems is/are true?
I. Manufactured wiring systems shall not be permitted for use in ducts or plenums.
II. Receptacles used with manufactured wiring systems shall be of the locking type.

Where nonmetallic sheathed cable is used with a nonmetallic outlet box, the sheath of the cable must extend not less than ___________ inside the box and beyond any cable clamp.