Deck 6: General Provisions

Question 1

At least ____ wall switch-controlled lighting outlet shall be installed in every habitable room of a dwelling.

A) one
B) two
C) three
D) four

Answer 1

A

Question 2

A general-purpose branch circuit may feed ____.

A) lights
B) receptacles
C) lights, receptacles, or both
D) other branches

Answer 2

C

Question 3

Outlet boxes or outlet box systems used as the sole support of a ceiling-suspended fan shall not support ceiling-suspended (paddle) fans that weigh more than ____ pounds.

A) 50
B) 65
C) 70
D) 100

Answer 3

C

Question 4

To calculate the minimum number of 20-ampere branch circuits required in a dwelling, you should multiply the dwelling square footage by 3 volt-amperes to obtain total volt-amperes, divide by 120 volts to obtain the total amperes, and finally, ____.

A) multiply by 20 and round up to obtain the number of circuits
B) divide by 20 and round down to obtain the number of circuits
C) divide by 20 and round up to obtain the number of circuits
D) multiply by 20 and round down to obtain the number of circuits

Question 5

To calculate the minimum number of 15-ampere branch circuits required in a dwelling, you should multiply the dwelling square footage by 3 volt-amperes to obtain total volt-amperes, divide by 120 volts to obtain the total amperes, and finally, ____.

A) divide by 15 and round up to obtain the number of circuits
B) multiply by 15 and round up to obtain the number of circuits
C) divide by 15 and round down to obtain the total number of circuits
D) multiply by 15 and round up to obtain the total number of circuits

Question 6

____ in exterior walls are not counted as wall space.

A) Sliding panels
B) Floor-to-ceiling windows
C) Corners
D) Paneling

Question 7

An arc-fault circuit interrupter (AFCI) provides protection from the effects of arc faults by ____ the circuit when an arc fault is detected.

A) sending an alert to a bluetooth detector for
B) redirecting energy to an alternate pathway for
C) disabling the main electrical branch line
D) functioning to de-energize

Question 8

A single receptacle installed on a branch circuit with no other device or outlet shall have an ampere rating ____ of that circuit.

A) not more than the rating
B) not less than 150% of the rating
C) not more than 150% of the rating
D) not less than the rating

Question 9

To find the minimum circuit ampacity, ____.

A) divide the wattage by the voltage to find amperage and multiply the amperage by 150%
B) multiply the wattage by the voltage to find amperage and divide the amperage by 125%
C) divide the wattage by the voltage to find amperage and multiply the amperage by 125%
D) multiply the wattage by the voltage to find amperage and divide the amperage by 150%

Question 10

The arrangement of grounding connections shall be such that the disconnection or removal of a device fed from the box will not interfere with the ____.

A) total wall space
B) total load
C) raceway continuity
D) grounding continuity

Question 11

The most common wiring type installed in one-family dwellings is ____.

A) metallic-sheathed cable
B) nonmetallic-sheathed cable
C) unsheathed metallic cable
D) fiber-optic cable

Question 12

At least ____ inches of free conductor shall be left at each outlet, junction, and switch point.

A) 6
B) 8
C) 12
D) 18

Question 13

If supplied by an individual branch circuit, the rating of a cord- and attachment plug-connected room air conditioner can be no more than ____ of the circuit's ampere rating.

A) 50%
B) 75%
C) 80%
D) 90%

Question 14

____ determines the minimum number of receptacles in a given dwelling.

A) Total load
B) Wall space
C) Total branching
D) Available grounding

Question 15

Required branch circuits include ____ circuits.

A) small appliance, laundry, and bathroom
B) HVAC, appliance, and alarm system
C) alarm system, bathroom, and telecom
D) appliance, laundry, and media system

Question 16

If the overprotection rating for an appliance is not marked and the appliance is rated over 13.3 amperes, the overcurrent protection shall not exceed ____% of the rated current.

A) 50
B) 75
C) 100
D) 150

Question 17

____ receptacles are identified by the letters "TR."

A) Transmission-recovery
B) Tamper-resistant
C) Transient surge resistors
D) Tower recovery

Question 18

All switches shall be located so that they may be operated from a readily accessible place, not more than ___ from the floor to the center of the switch operating handle.

A) 4 ft., 7 in.
B) 5 ft., 7 in.
C) 6 ft., 7 in.
D) 8 ft., 7 in.

Question 19

A split-wire receptacle receiving power from a single source (one breaker or one fuse) is ____.

A) a multiwire receptacle
B) not a multiwire receptacle
C) a continuous circuit
D) a branched circuit

Question 20

Electrical blueprints (floor plans) ____ on a one-family dwelling.

A) may be optional
B) are mandatory
C) are recommended
D) are governed by local law

Question 21

A ____ receptacle outlet shall be installed at an accessible location for the servicing of heating, air-conditioning, and refrigeration equipment.

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

Question 22

One-family dwellings require at least _____ installed at the front and back of the dwelling.

A) one receptacle outlet
B) two receptacle outlets
C) three receptacle outlets
D) four receptacle outlets

Question 23

A ____ in a cable can be used as an ungrounded conductor when supplying power to a switch, but not as a return conductor from the switch to the outlet.

A) yellow conductor
B) red conductor
C) white conductor
D) black conductor

Question 24

An outdoor receptacle, in a location protected from the weather or in other damp locations, requires ____ when the receptacle is covered.

A) no additional enclosure for the receptacle that is weatherproof
B) a water-resistant enclosure
C) specific placement under a suitable overhang
D) an enclosure for the receptacle that is weatherproof

Question 25

Outdoor luminaires and associated equipment ____.

A) cannot be supported by trees
B) and overhead conductor spans can be supported by trees
C) can be supported by trees
D) can be supported by free standing poles if grounded for lightening