Deck 18: Electric Codes

Question 1

It is encouraged that the NEC be used as a design manual.

Answer 1

False

Question 2

___________ concerns branch circuits.

A) Article 110
B) Article 210
C) Article 240
D) Article 250

Answer 2

B

Question 3

__________ provides information regarding general requirements for electrical installations.

A) Article 110
B) Article 210
C) Article 240
D) Article 250

Answer 3

A

Question 4

The term __________ is used to describe voltage levels between 50 Volts and 600 Volts.

A) average voltage
B) high voltage
C) line voltage
D) low voltage

Question 5

The __________ provides detailed information regarding many factors that affect electrical installations, maintenance and electrical system design and layout.

A) National Electricity Commission (NEC)
B) National Electricity Constitution (NEC)
C) National Electric Code (NEC)
D) National Fire Protection Association (NFPA)

Question 7

Receptacles need to be rated at amperages __________ the amperage rating of the branch circuit.

A) higher than
B) higher than or equal to
C) lower than
D) lower than or equal to

Question 8

It is never acceptable for the technician to cut the ground prong off any plug, extension cord, power cord, or appliance power cable.

Question 9

Permissive rules identify practices that are allowed, but not required.

Question 10

__________ concerns overcurrent protection.

A) Article 110
B) Article 210
C) Article 240
D) Article 250

Question 11

__________ provides information regarding proper grounding of tools and equipment.

A) Article 110
B) Article 210
C) Article 240
D) Article 250

Question 12

The NEC is intended to be used by untrained individuals.

Question 13

Mandatory rules identify practices that are either allowed or not allowed.

Question 19

The reason for properly grounding tools and equipment is simple. If the insulation on a conductor becomes damaged or an energized conductor comes loose from a terminal connection in a piece of equipment, it is possible to __________ the surfaces that these conductors come in contact with. If the equipment is not properly grounded and someone comes in contact with an electrified surface, __________ or __________ could occur.

Question 20

__________ are required on all 15 and 20-amp, 125-volt receptacle circuits located in bathrooms, in garages, outdoors, in kitchens near countertops, and near laundry and utility sinks.

Question 22

According to Article 300 of the NEC, it is permissible to run cables through holes that have been made in beams, rafters, joists or other wood members. However, the hole that has been made must be no closer than __________ inches from the edge of the wood member. If this amount of clearance cannot be maintained, the cable must be protected from damage by a __________ at least 1/16 of an inch thick

Question 23

According to Article 110 of the NEC, unused openings on equipment must be __________. The sealed opening must provide the same protection as the __________. A __________ is commonly used to close unused openings in electrical boxes

Question 24

__________ is the current, in amperes, that a conductor can continuously safely carry.

Question 25

List three common conductor types that are used in dry or damp locations

Question 26

According to Article 250 of the NEC, motors that are mounted with rubber or other insulating materials that isolate them from the metallic chassis of the equipment need to have a __________ between the motor and the equipment chassis

Question 27

List four NFPA codes that affect the residential construction industry.

Question 28

Phrases that identify mandatory rules include__________ and __________. Phrases that identify permissive rules include __________ and __________.

Question 29

__________ conductors are conductors that have no covering at all. __________ conductors are those conductors that have a covering that is recognized by the NEC as electrical insulation. __________ conductors are those conductors that have a covering that is not recognized by the NEC as electrical insulation.

Question 30

According to Article 110 of the NEC, if openings in nonmetallic boxes are removed and not used, the entire box must be __________.

Question 31

According to Article 240 of the NEC, overcurrent protection for ungrounded conductors are to be located at the point where __________.

Question 32

General purpose branch circuits supply power to two or more outlets for __________ and __________ use.