Question 1

Skin effect and induction change the resistance in alternating-current (ac) circuits, therefore resistance of a conductor is ____.

Accepted Answer

A)  slightly lower in an ac circuit 
B)  reciprocally lower in a dc circuit 
C)  slightly higher in an ac circuit 
D)  reciprocally higher in a dc circuit 
A)  slightly lower in an ac circuit 
B)  reciprocally lower in a dc circuit 
C)  slightly higher in an ac circuit 
D)  reciprocally higher in a dc circuit C

Question 2

Service conductors supplying a building (or other structure) shall not ____.

Accepted Answer

A)  terminate in a panel 
B)  be enclosed in a six-gang enclosure 
C)  pass through the interior of another building 
D)  have less than two disconnects 
A)  terminate in a panel 
B)  be enclosed in a six-gang enclosure 
C)  pass through the interior of another building 
D)  have less than two disconnects C

Question 3

Kitchen receptacles not serving countertops (such as receptacles behind refrigerators) ____ unless they are installed within 6 ft of the outside edge of the sink.

Accepted Answer

A)  must be on a separate branch circuit 
B)  require a dual phase leader 
C)  do not require GFCI protection 
D)  are not counted towards total load 
A)  must be on a separate branch circuit 
B)  require a dual phase leader 
C)  do not require GFCI protection 
D)  are not counted towards total load C

Question 4

The maximum distance to any receptacle, measured horizontally along the wall line, is ____ in.

Accepted Answer

A)  6 
B)  12 
C)  18 
D)  24 
A)  6 
B)  12 
C)  18 
D)  24

Question 5

Each occupant must have ready access to ____ protecting the conductors supplying that occupancy.

Accepted Answer

A)  primary feeders 
B)  all overcurrent devices 
C)  panel boxes 
D)  service laterals 
A)  primary feeders 
B)  all overcurrent devices 
C)  panel boxes 
D)  service laterals

Question 6

The vertical clearance above roof level must be maintained for a distance of at least ____ ft from all edges of the roof.

Accepted Answer

A)  3 
B)  4 
C)  6 
D)  8 
A)  3 
B)  4 
C)  6 
D)  8

Question 7

All electric equipment must be ____ to allow ready and safe equipment operation and maintenance.

Accepted Answer

A)  externally grounded 
B)  surrounded by sufficient unobstructed space 
C)  enclosed within a metal cabinet 
D)  surrounded by at least 2 ft of ventilation space 
A)  externally grounded 
B)  surrounded by sufficient unobstructed space 
C)  enclosed within a metal cabinet 
D)  surrounded by at least 2 ft of ventilation space

Question 8

If the load requirements of a single-phase installation are greater than the serving agency normally supplies through one service, ____ are permitted.

Accepted Answer

A)  additional agencies 
B)  multiple branches 
C)  service disconnects 
D)  multiple services 
A)  additional agencies 
B)  multiple branches 
C)  service disconnects 
D)  multiple services

Question 9

A single-phase feeder (or branch circuit) conductor will have a total resistance ____ that of one conductor.

Accepted Answer

A)  half 
B)  twice 
C)  three times 
D)  four times 
A)  half 
B)  twice 
C)  three times 
D)  four times

Question 10

A drip loop's lowest point has a minimum vertical clearance of ____ ft.

Accepted Answer

A)  4 
B)  6 
C)  8 
D)  10 
A)  4 
B)  6 
C)  8 
D)  10

Question 11

The conductors and equipment that deliver energy from the electricity supply system to the wiring system of the premises are called the ____.

Accepted Answer

A)  main feeders 
B)  service 
C)  central lines 
D)  primary carriers 
A)  main feeders 
B)  service 
C)  central lines 
D)  primary carriers

Question 12

All 125-volt, single-phase, 15- and 20-ampere dwelling unit outdoor receptacles must have ____.

Accepted Answer

A)  separate circuit breakers 
B)  interior grounding 
C)  GFCI protection 
D)  exterior grounding 
A)  separate circuit breakers 
B)  interior grounding 
C)  GFCI protection 
D)  exterior grounding

Question 13

Dwelling-unit branch circuits shall supply only loads within, or associated only with, ____.

Accepted Answer

A)  dwellings in that vertical line 
B)  a parallel unit 
C)  other branch circuits 
D)  that dwelling unit 
A)  dwellings in that vertical line 
B)  a parallel unit 
C)  other branch circuits 
D)  that dwelling unit

Question 14

____ is the maximum number of disconnects per service grouped in any one location.

Accepted Answer

A)  Two 
B)  Three 
C)  Six 
D)  Nine 
A)  Two 
B)  Three 
C)  Six 
D)  Nine

Question 15

____ is defined as the underground conductors between the utility electric supply system and the service point.

Accepted Answer

A)  Service lateral 
B)  Primary branch 
C)  Ancillary service 
D)  Connection branch 
A)  Service lateral 
B)  Primary branch 
C)  Ancillary service 
D)  Connection branch

Question 16

The recommended voltage drop for a branch circuit is ____ % or less.

Accepted Answer

A)  1 
B)  5 
C)  3 
D)  7 
A)  1 
B)  5 
C)  3 
D)  7

Question 17

A minimum of ____ wall switch-controlled lighting outlet(s) is (are) required for dwelling hallways.

Accepted Answer

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

Question 18

General receptacle installation provisions for multifamily dwellings are almost identical to those for ____.

Accepted Answer

A)  commercial properties 
B)  garage facilities 
C)  dual-family dwellings 
D)  one-family dwellings 
A)  commercial properties 
B)  garage facilities 
C)  dual-family dwellings 
D)  one-family dwellings

Question 19

Conductors must have ____ and sufficient ampacity to carry the current for the load as calculated.

Accepted Answer

A)  sufficient length 
B)  adequate insulation 
C)  adequate mechanical strength 
D)  definitive markings 
A)  sufficient length 
B)  adequate insulation 
C)  adequate mechanical strength 
D)  definitive markings

Question 20

The larger the circular mil area of a conductor, the ____.

Accepted Answer

A)  greater the resistance 
B)  more insulation required 
C)  more flexible the conductor 
D)  smaller the resistance 
A)  greater the resistance 
B)  more insulation required 
C)  more flexible the conductor 
D)  smaller the resistance

Skin effect and induction change the resistance in alternating-current (ac) circuits, therefore resistance of a conductor is ____.

Service conductors supplying a building (or other structure) shall not ____.

Kitchen receptacles not serving countertops (such as receptacles behind refrigerators) ____ unless they are installed within 6 ft of the outside edge of the sink.

The maximum distance to any receptacle, measured horizontally along the wall line, is ____ in.

Each occupant must have ready access to ____ protecting the conductors supplying that occupancy.

The vertical clearance above roof level must be maintained for a distance of at least ____ ft from all edges of the roof.

All electric equipment must be ____ to allow ready and safe equipment operation and maintenance.

If the load requirements of a single-phase installation are greater than the serving agency normally supplies through one service, ____ are permitted.

A single-phase feeder (or branch circuit) conductor will have a total resistance ____ that of one conductor.

A drip loop's lowest point has a minimum vertical clearance of ____ ft.

The conductors and equipment that deliver energy from the electricity supply system to the wiring system of the premises are called the ____.

All 125-volt, single-phase, 15- and 20-ampere dwelling unit outdoor receptacles must have ____.

Dwelling-unit branch circuits shall supply only loads within, or associated only with, ____.

____ is the maximum number of disconnects per service grouped in any one location.

____ is defined as the underground conductors between the utility electric supply system and the service point.

The recommended voltage drop for a branch circuit is ____ % or less.

A minimum of ____ wall switch-controlled lighting outlet(s) is (are) required for dwelling hallways.

General receptacle installation provisions for multifamily dwellings are almost identical to those for ____.

Conductors must have ____ and sufficient ampacity to carry the current for the load as calculated.

The larger the circular mil area of a conductor, the ____.

Introduction to the National Electrical Code

Definitions

Boxes and Enclosures

Cables

Raceways and Conductors

General Provisions

Specific Provisions

Load Calculations

Services and Electrical Equipment

Load Calculations

General Provisions

Nondwelling Load Calculations

Services, Feeders, and Equipment

Hazardous Classified Locations

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters

Exam 10: Comprehensive Provisions

Skin effect and induction change the resistance in alternating-current (ac) circuits, therefore resistance of a conductor is ____.

Service conductors supplying a building (or other structure) shall not ____.

Kitchen receptacles not serving countertops (such as receptacles behind refrigerators) ____ unless they are installed within 6 ft of the outside edge of the sink.

The maximum distance to any receptacle, measured horizontally along the wall line, is ____ in.

Each occupant must have ready access to ____ protecting the conductors supplying that occupancy.

The vertical clearance above roof level must be maintained for a distance of at least ____ ft from all edges of the roof.

All electric equipment must be ____ to allow ready and safe equipment operation and maintenance.

If the load requirements of a single-phase installation are greater than the serving agency normally supplies through one service, ____ are permitted.

A single-phase feeder (or branch circuit) conductor will have a total resistance ____ that of one conductor.

A drip loop's lowest point has a minimum vertical clearance of ____ ft.

The conductors and equipment that deliver energy from the electricity supply system to the wiring system of the premises are called the ____.

All 125-volt, single-phase, 15- and 20-ampere dwelling unit outdoor receptacles must have ____.

Dwelling-unit branch circuits shall supply only loads within, or associated only with, ____.

____ is the maximum number of disconnects per service grouped in any one location.

____ is defined as the underground conductors between the utility electric supply system and the service point.

The recommended voltage drop for a branch circuit is ____ % or less.

A minimum of ____ wall switch-controlled lighting outlet(s) is (are) required for dwelling hallways.

General receptacle installation provisions for multifamily dwellings are almost identical to those for ____.

Conductors must have ____ and sufficient ampacity to carry the current for the load as calculated.

The larger the circular mil area of a conductor, the ____.

Introduction to the National Electrical Code

Definitions

Boxes and Enclosures

Cables

Raceways and Conductors

General Provisions

Specific Provisions

Load Calculations

Services and Electrical Equipment

Load Calculations

General Provisions

Nondwelling Load Calculations

Services, Feeders, and Equipment

Hazardous Classified Locations

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters