Deck 6: General Provisions

Question 1

____ in exterior walls are not counted as wall space.

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

Answer 1

A

Question 2

A general-purpose branch circuit may feed ____.

A) lights only
B) receptacles only
C) lights, receptacles, or both
D) neither lights nor receptacles

Answer 2

C

Question 3

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

Answer 3

B

Question 4

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 5

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 6

____ receptacles are identified by the letters "TR."

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

Question 7

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 8

If the overcurrent protection 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 9

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 10

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 ____.

A) 50 pounds (23 kg)
B) 65 pounds (29 kg)
C) 70 pounds (32 kg)
D) 100 pounds (45 kg)

Question 11

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 12

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

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

Question 13

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

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

Question 14

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 15

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

A) 6 in.(150 mm)
B) 8 in.(200 mm)
C) 12 in.(300 mm)
D) 18 in.(450 mm)

Question 16

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 17

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 18

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 of
D) functioning to de-energize

Question 19

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 20

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.(1.4 m)
B) 5 ft, 7 in.(1.7 m)
C) 6 ft, 7 in.(2.0 m)
D) 8 ft, 7 in.(2.6 m)

Question 21

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

Question 22

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 23

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

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

Question 24

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 25

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