Deck 18: Wiring Materials

Question 1

The connector in the accompanying figure would be suitable for ____________________ cable.

Answer 1

nonmetallic-sheathed
nonmetallic sheathed

Question 2

Nonmetallic-sheathed cable always contains copper conductors.

Answer 2

False

Question 3

You need to install a motor mounted on an adjustable base for a belt drive. The motor will operate in a wet environment. What would be your choice of conductor and why?

Answer 3

One choice for wiring would be liquidtight flexible metal conduit. It offers the same flexibility as flexible metal conduit, but has the added benefit of an outer liquidtight jacket over the armor. This jacket makes the conduit suitable for locations subject to oil, water, certain chemicals, and corrosive conditions.

Question 4

____________________ or Greenfield tubing is formed with a single strip of galvanized metal, wound in a spiral on itself, and interlocked so as to provide maximum strength with greatest flexibility.

Question 5

Under what circumstances would you install an antishort bushing and what steps are involved in the installation?

Question 6

If a nonmetallic-sheathed cable contains an uninsulated copper conductor, this conductor is used only for ____________________.

Question 7

____________________ conduit provides maximum protection to conductors.

Question 8

Flexible metal conduit is a suitable choice for wet locations.

Question 9

Fiber bushings are required for all types of wiring.

Question 10

Rigid metal conduit may be used underground, concealed in walls, and in exposed areas.