Deck 12: General Provisions

Question 1

Receptacles are calculated at ____ per strap.

A) 160 volt-amperes
B) 180 volt-amperes
C) 190 volt-amperes
D) 200 volt-amperes

Answer 1

B

Question 2

Individual moveable showcases can be connected by ____.

A) flexible cord to permanently installed receptacles
B) permanent wiring (contained in a raceway) to a junction box
C) rigid wiring to permanently installed receptacles
D) flexible cord to a power strip

Answer 2

A

Question 3

Wall switch-controlled lighting outlets are not required in commercial occupancies, except for ____ containing equipment that requires servicing.

A) attic and underfloor spaces
B) show window areas
C) store room spaces
D) kitchen areas

Answer 3

A

Question 4

Where a branch circuit supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum branch-circuit conductor size shall have an allowable ampacity not less than the noncontinuous load plus ____ of the continuous load.

A) the minimum
B) the maximum
C) the average
D) 125%

Question 5

The disconnecting means for a sign in a commercial or industrial building must be ____ or outline lighting system that it controls.

A) within 10 ft of the sign
B) on the main feeder line to the sign
C) generally accessible to the sign
D) within sight of the sign

Question 6

Sign and outline lighting outlets must be calculated at a minimum of ____ per required branch circuit.

A) 1000 volt-amperes
B) 1100 volt-amperes
C) 1200 volt-amperes
D) 1500 volt-amperes

Question 7

____ applies to the wall placement provisions for commercial occupancies.

A) The 6-ft rule
B) The 8-ft rule
C) The 12-ft rule
D) No rule (the 6-ft provisions applies to dwelling units only)

Question 8

One of two methods for calculating show window branch-circuit loads is to multiply each receptacle by ____ volt-amperes.

A) 90
B) 120
C) 180
D) 200

Question 9

____ receptacles are permitted on a 15-ampere overcurrent protective device.

A) Four
B) Five
C) Ten
D) Twelve

Question 10

The supply circuit's calculated load for lighting units that have ballasts or transformers is based on the ____, not on the lamps' total wattage.

A) calculated continuous load
B) total ampere ratings of such units
C) the ampere rating of the ballast
D) the ampere rating on the nameplate

Question 11

A continuous load is defined as a load ____.

A) having the maximum level of current sustained for three hours or more
B) having the maximum level of current sustained for two hours or more
C) on any general purpose receptacle
D) on any dedicated receptacle

Question 12

Branch circuits shall be rated in accordance with the maximum permitted ampere rating or setting of the ____.

A) overcurrent device
B)  load
C) receptacle
D) conductor

Question 13

GFCI protection for personnel is required in bathroom receptacles that are ____.

A) 112-volt, single-phase, 15- and 20-ampere
B) 125-volt, single-phase, 15- and 20-ampere
C) 125-volt, dual-phase, 15- and 20-ampere
D) 125-volt, single-phase, 20- and 25-ampere

Question 14

For circuits supplying loads consisting of motor-operated utilization equipment (fastened in place with a motor larger than 1.8 hp) in combination with other loads, the total calculated load must be based on ____% of the largest motor load plus the sum of the other loads.

A) 50
B) 75
C) 100
D) 125

Question 15

The minimum number of branch circuits is determined from ____ load and the size (or rating) of the circuits used.

A) the average daily
B) the maximum
C) 125% of the maximum
D) the total computed

Question 16

In cord-connected showcases, the secondary circuit(s) of each electric-discharge lighting ballast is (are) ____.

A) connected to a wall receptacle
B) limited to the adjacent branch circuit
C) not limited to any number of showcases
D) limited to one showcase

Question 17

Where appliances are unlikely to be used simultaneously, each ____ or fraction thereof (of separate and continuous length) shall be considered one outlet of not less than 180 volt-amperes.

A) 5 ft
B) 6 ft
C) 8 ft
D) 12 ft

Question 18

When considering receptacle volt-ampere rating, a single piece of equipment (consisting of four or more receptacles) must be calculated at not less than ____ volt-amperes per receptacle.

A) 40
B) 80
C) 90
D) 120

Question 19

Receptacles, connectors, and attachment plugs for showcases must be of a listed grounding type, rated ____.

A) 10 or 15 amperes
B) 10 or 20 amperes
C) 15 or 20 amperes
D) 20 or 25 amperes

Question 20

Show-window branch-circuit loads must be calculated either by (a) the unit load per outlet as required by other provisions of 220.14 or (b) at ____ volt-amperes per linear foot.

A) 90
B) 120
C) 180
D) 200

Question 21

Heavy-duty lighting track is identified for use exceeding ____ amperes.

A) 10
B) 20
C) 30
D) 40

Question 22

A recessed luminaire not identified for contact with insulation shall have all recessed parts spaced at least ____ from combustible materials.

A) 0.5 inches
B) 1.25 inches
C) 1.50 inches
D) 1.75 inches

Question 23

A ballast in a fluorescent exit luminaire shall ____.

A) have GFCI protection
B) have thermal protection
C) not have thermal protection
D) not have GFCI protection

Question 24

A 3-phase, 4-wire, wye-connected power system supplying nonlinear loads may necessitate a design allowing for the possibility of ____ on the neutral conductor.

A) transient arching
B) low harmonic neutral currents
C) excessive heat
D) high harmonic neutral currents

Question 25

The ____ for the controlled lighting circuit shall be provided at the location where switches control lighting loads that are supplied by a grounded general-purpose branch circuit.

A) junction box
B) panel box
C) terminal lead
D) grounded circuit conductor