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Residential Construction Academy HVAC
Quiz 18: Electric Codes
Path 4
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Question 21
Matching
Match the NEC chapters to the subjects they cover.
Premises:
Responses:
general wiring practices and equipment
Chapters 1-4
Chapter 8
Chapter 9
Premises:
general wiring practices and equipment
Responses:
Chapters 1-4
Chapter 8
Chapter 9
Question 22
Short Answer
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
Short Answer
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
Short Answer
__________ is the current, in amperes, that a conductor can continuously safely carry.
Question 25
Essay
List three common conductor types that are used in dry or damp locations
Question 26
Short Answer
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