Question 1

Panelboards shall be mounted in cabinets, cutout boxes, or identified enclosures and shall be ____.

Accepted Answer

A)  removable 
B)  drop down 
C)  dead front 
D)  metallic 
A)  removable 
B)  drop down 
C)  dead front 
D)  metallic C

Question 2

Entrance cables must be supported within ____ in. of every raceway or enclosure connection.

Accepted Answer

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

Question 3

Circuit breakers must have a voltage rating (clearly marked) ____ voltage.

Accepted Answer

A)  no more than the nominal system 
B)  within a predetermined range 
C)  no less than a predetermined range 
D)  no less than the nominal system 
A)  no more than the nominal system 
B)  within a predetermined range 
C)  no less than a predetermined range 
D)  no less than the nominal system C

Question 4

Type ____ cable can be formed in a gooseneck and taped with a self-sealing weather-resistant thermoplastic.

Accepted Answer

A)  SL 
B)  ME 
C)  SE 
D)  WE 
A)  SL 
B)  ME 
C)  SE 
D)  WE

Question 5

Cartridge fuses and fuseholders are classified according to ____.

Accepted Answer

A)  voltage and amperage ranges 
B)  ampere ranges and melt-down 
C)  wattage or heat capacity 
D)  voltage ranges 
A)  voltage and amperage ranges 
B)  ampere ranges and melt-down 
C)  wattage or heat capacity 
D)  voltage ranges

Question 6

Fuses must be plainly marked (by printing on or a label attached to the fuse barrel), showing the following: (1) ampere rating, (2) voltage rating, (3) ____, (4) "current-limiting" where applicable, and (5) the name or trademark of the manufacturer.

Accepted Answer

A)  material capacity 
B)  interrupting rating if other than 10,000 amperes 
C)  date of manufacture 
D)  interrupting rating if other than 1,000 amperes 
A)  material capacity 
B)  interrupting rating if other than 10,000 amperes 
C)  date of manufacture 
D)  interrupting rating if other than 1,000 amperes

Question 7

Splices in wire-type grounding electrode conductors are acceptable only if by means of irreversible compression-type connectors (listed as grounding and bonding equipment) or by the ____.

Accepted Answer

A)  endothermic welding process 
B)  exothermic welding process 
C)  cold fusion 
D)  hot spark technique 
A)  endothermic welding process 
B)  exothermic welding process 
C)  cold fusion 
D)  hot spark technique

Question 8

Panelboards include overcurrent devices as well as ____.

Accepted Answer

A)  appliance branches 
B)  buses 
C)  main box nuts 
D)  line splitters 
A)  appliance branches 
B)  buses 
C)  main box nuts 
D)  line splitters

Question 9

Although not stipulated in the NEC  , some local jurisdictions have adopted ____ for service conductors.

Accepted Answer

A)  specific distance requirements 
B)  load capacities 
C)  insulation materials 
D)  waterproofing standards 
A)  specific distance requirements 
B)  load capacities 
C)  insulation materials 
D)  waterproofing standards

Question 10

Underground service conductors are defined as the underground conductors between the service point and the ____ to the service-entrance conductors in a terminal box.

Accepted Answer

A)  first interior branch 
B)  first point of connection 
C)  primary junction 
D)  secondary branch 
A)  first interior branch 
B)  first point of connection 
C)  primary junction 
D)  secondary branch

Question 11

Two to ____ circuit breakers or sets of fuses are acceptable as the overcurrent device to provide overload protection.

Accepted Answer

A)  three 
B)  four 
C)  six 
D)  eight 
A)  three 
B)  four 
C)  six 
D)  eight

Question 12

The radius of the curve of the inner edge of any bend in service-entrance cable must be at least ____ times the diameter of the cable.

Accepted Answer

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

Question 13

Main bonding jumpers and system bonding jumpers must be made of ____ or other corrosion-resistant material.

Accepted Answer

A)  aluminum 
B)  stainless steel 
C)  sheathed aluminum 
D)  copper 
A)  aluminum 
B)  stainless steel 
C)  sheathed aluminum 
D)  copper

Question 14

Overhead service conductors, accessible only to pedestrian traffic, must have a minimum ____-ft vertical clearance above finished grade.

Accepted Answer

A)  6 
B)  8 
C)  10 
D)  12 
A)  6 
B)  8 
C)  10 
D)  12

Question 15

Working space illumination shall not be ____.

Accepted Answer

A)  controlled by a switch plate 
B)  applied via a branch circuit 
C)  controlled by automatic means only 
D)  located along a bearing wall 
A)  controlled by a switch plate 
B)  applied via a branch circuit 
C)  controlled by automatic means only 
D)  located along a bearing wall

Question 16

Wireways are ____ with hinged or removable covers used to house and protect electric wires and cables.

Accepted Answer

A)  service boxes 
B)  raceways 
C)  non-metallic sheaths 
D)  troughs (sheet metal or nonmetallic) 
A)  service boxes 
B)  raceways 
C)  non-metallic sheaths 
D)  troughs (sheet metal or nonmetallic)

Question 17

Circuit breakers and fuses can be connected in parallel provided they are ____.

Accepted Answer

A)  rated at 100 amperes or less 
B)  installed along the main feeder line 
C)  rated at 100 amperes or more 
D)  factory assembled and listed as a unit 
A)  rated at 100 amperes or less 
B)  installed along the main feeder line 
C)  rated at 100 amperes or more 
D)  factory assembled and listed as a unit

Question 18

Type USE cable used for service laterals can ___.

Accepted Answer

A)  be contained in a raceway 
B)  be locally grounded 
C)  emerge aboveground at outside terminations 
D)  be indirectly buried 
A)  be contained in a raceway 
B)  be locally grounded 
C)  emerge aboveground at outside terminations 
D)  be indirectly buried

Question 19

Voltage between overhead conductors does not exceed ____ volts.

Accepted Answer

A)  100 
B)  200 
C)  300 
D)  400 
A)  100 
B)  200 
C)  300 
D)  400

Question 20

Conductor sizes are expressed in American Wire Gage (AWG) or in ____.

Accepted Answer

A)  circular mils 
B)  copper gauge units 
C)  diameter in inches 
D)  millimeters squared 
A)  circular mils 
B)  copper gauge units 
C)  diameter in inches 
D)  millimeters squared

Panelboards shall be mounted in cabinets, cutout boxes, or identified enclosures and shall be ____.

Entrance cables must be supported within ____ in. of every raceway or enclosure connection.

Circuit breakers must have a voltage rating (clearly marked) ____ voltage.

Type ____ cable can be formed in a gooseneck and taped with a self-sealing weather-resistant thermoplastic.

Cartridge fuses and fuseholders are classified according to ____.

Fuses must be plainly marked (by printing on or a label attached to the fuse barrel), showing the following: (1) ampere rating, (2) voltage rating, (3) ____, (4) "current-limiting" where applicable, and (5) the name or trademark of the manufacturer.

Splices in wire-type grounding electrode conductors are acceptable only if by means of irreversible compression-type connectors (listed as grounding and bonding equipment) or by the ____.

Panelboards include overcurrent devices as well as ____.

Although not stipulated in the NEC , some local jurisdictions have adopted ____ for service conductors.

Underground service conductors are defined as the underground conductors between the service point and the ____ to the service-entrance conductors in a terminal box.

Two to ____ circuit breakers or sets of fuses are acceptable as the overcurrent device to provide overload protection.

The radius of the curve of the inner edge of any bend in service-entrance cable must be at least ____ times the diameter of the cable.

Main bonding jumpers and system bonding jumpers must be made of ____ or other corrosion-resistant material.

Overhead service conductors, accessible only to pedestrian traffic, must have a minimum ____-ft vertical clearance above finished grade.

Working space illumination shall not be ____.

Wireways are ____ with hinged or removable covers used to house and protect electric wires and cables.

Circuit breakers and fuses can be connected in parallel provided they are ____.

Type USE cable used for service laterals can ___.

Voltage between overhead conductors does not exceed ____ volts.

Conductor sizes are expressed in American Wire Gage (AWG) or in ____.

Introduction to the National Electrical Code

Definitions

Boxes and Enclosures

Cables

Raceways and Conductors

General Provisions

Specific Provisions

Load Calculations

Comprehensive Provisions

Load Calculations

General Provisions

Nondwelling Load Calculations

Services, Feeders, and Equipment

Hazardous Classified Locations

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters

Exam 9: Services and Electrical Equipment

Panelboards shall be mounted in cabinets, cutout boxes, or identified enclosures and shall be ____.

Entrance cables must be supported within ____ in. of every raceway or enclosure connection.

Circuit breakers must have a voltage rating (clearly marked) ____ voltage.

Type ____ cable can be formed in a gooseneck and taped with a self-sealing weather-resistant thermoplastic.

Cartridge fuses and fuseholders are classified according to ____.

Fuses must be plainly marked (by printing on or a label attached to the fuse barrel), showing the following: (1) ampere rating, (2) voltage rating, (3) ____, (4) "current-limiting" where applicable, and (5) the name or trademark of the manufacturer.

Splices in wire-type grounding electrode conductors are acceptable only if by means of irreversible compression-type connectors (listed as grounding and bonding equipment) or by the ____.

Panelboards include overcurrent devices as well as ____.

Although not stipulated in the NEC , some local jurisdictions have adopted ____ for service conductors.

Underground service conductors are defined as the underground conductors between the service point and the ____ to the service-entrance conductors in a terminal box.

Two to ____ circuit breakers or sets of fuses are acceptable as the overcurrent device to provide overload protection.

The radius of the curve of the inner edge of any bend in service-entrance cable must be at least ____ times the diameter of the cable.

Main bonding jumpers and system bonding jumpers must be made of ____ or other corrosion-resistant material.

Overhead service conductors, accessible only to pedestrian traffic, must have a minimum ____-ft vertical clearance above finished grade.

Working space illumination shall not be ____.

Wireways are ____ with hinged or removable covers used to house and protect electric wires and cables.

Circuit breakers and fuses can be connected in parallel provided they are ____.

Type USE cable used for service laterals can ___.

Voltage between overhead conductors does not exceed ____ volts.

Conductor sizes are expressed in American Wire Gage (AWG) or in ____.

Introduction to the National Electrical Code

Definitions

Boxes and Enclosures

Cables

Raceways and Conductors

General Provisions

Specific Provisions

Load Calculations

Comprehensive Provisions

Load Calculations

General Provisions

Nondwelling Load Calculations

Services, Feeders, and Equipment

Hazardous Classified Locations

Health Care

Industrial Locations

Special Occupancies

Specific Equipment

Filters