Electrical nonmetallic tubing shall be securely fastened at intervals not exceeding ____________.

Which of the following statements is/are true regarding photovoltaic system disconnecting means?
I. Each PV system disconnecting means shall be suitable for use as service equipment.
II. Each PV system disconnecting means shall consist of not more than 2 switches or circuit breakers.

Pipe or conduit used as a grounding electrode shall not be smaller than trade size ___________.

In which of the following occupancy types would a panelboard, rated not over 200 amperes, be permitted in a space where the height of the working space is 6 feet?

Isolated grounding type receptacle outlets shall be identified by a(n) ______________ on the face of the receptacle.

Exposed, normally non-current carrying metal parts of fixed equipment supplied by or enclosing conductors or components that are likely to become energized shall be connected to an equipment grounding conductor where within ________ vertically of ground or grounded metal objects and subject to contact by persons.

Which of the following statements is/are true regarding lighting track?
I. Heavy-duty lighting track is lighting track identified for use exceeding 30 amperes.
II. Each fitting attached to a heavy-duty lighting track shall have individual overcurrent protection.

The calculated load of a feeder or service supplying electrified truck parking spaces shall not be less than __________ per space.

What is the minimum calculated feeder load for the lighting of 180 motel rooms that measure 22 ft. x 18 ft. each?

Lampholders installed over highly combustible material shall be ____________________.

The identification of terminals to which a grounded conductor is to be connected shall be substantially _____________ in color.

How many multiconductor cables are allowed in a ladder cable tray with an interior width of 9 in. if all of the conductors are smaller than 4/0 AWG and the cross-sectional area of each cable is 0.1855 in.²?

The residual voltage of a capacitor, rated 600 volts or less, shall be reduced to 50 volts, nominal, or less within _______ after the capacitor is disconnected from the source of supply.

4 AWG copper conductors in vertical raceways shall be supported at intervals not to exceed ____________.

Shielded conductors operating at over 600 volts shall not be bent to a radius less than ________ the overall diameter of the cable during or after installation.

Each patient bed location in a general care area of a health care facility shall be provided with a minimum of __________ receptacles.

Overhead spans for open individual conductors used for outside feeders operating at 600 volts or less shall not be smaller than _____________ for spans longer than 50 ft. unless supported by a messenger wire.

For emergency systems, current supply shall be such that, in the event of failure of the normal supply to, or within, the building or group of buildings concerned, emergency lighting, emergency power, or both shall be available within the time required for the application but not to exceed _____________.

Wood braces used to support outlet boxes must have a cross section not less than _____________.

When calculating service loads, the first 20 kVA of lighting load for a hotel shall be calculated at _________.

Not less than __________ of free nonheating lead of electric space-heating cable shall be within the junction box used for connection to the cable.

Which of the following statements about solidly grounded neutral systems, rated over 1,000 volts is/are true?
I. Solidly grounded neutral systems shall be permitted to be either single point grounded or multigrounded neutral.
II. The minimum insulation level for neutral conductors of solidly grounded systems shall be 1,000 volts.

A disconnecting means shall be provided within ___________ of each receptacle that provides shore power to boats at a marina.

A 4 in. rigid metal conduit contains 4 – 500 kcmil, XHHW conductors. What percentage filled is this conduit?

Which of the following could be used to control the speed of a motor?