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Wiring Installation: Device Boxes

11 question stems · Page 1 of 1

Question 1

When installing a receptacle in a finished wall, what is the maximum gap allowed between the outlet box and the drywall?

Question 2

What is the main purpose of an electrical junction box?

Question 3

What is the primary purpose of using a junction box in a wiring installation?

Question 4

What is the purpose of a conduit body (such as type LB) in a raceway system?

Question 5

When installing nonmetallic-sheathed cable (NM) in a wood-stud wall, how close to a box are staples typically required to secure the cable?

Question 6

An electrician installs a metal device box in a stud wall and feeds it with NM cable containing an equipment grounding conductor. What must be done to ensure the metal box is properly grounded?

Question 7

A receptacle is mounted in a finished wall. What box type is most commonly used in this application?

Question 8

When mounting nonmetallic boxes in a stud wall, which factor is MOST important to ensure device yokes will be flush with the finished wall?

Question 9

When installing a receptacle in a finished drywall wall, what device is typically used to support the receptacle and provide a termination point for the cable?

Question 10

For a surface-mounted conduit installation on a concrete basement wall, which box type is typically most appropriate?

Question 11

What is the primary purpose of a junction box in a branch circuit?