UNIT 4: CABLES (ARTICLE 300-314)

Answer each of the questions below by clicking on the appropriate option. If you make a mistake, read the feedback and answer again.

Question 1
Type AC cable shall be secured by staples, cable ties, straps, hangers, or similar fittings at intervals not exceeding ___________ feet.

a. 2'

b. 3'

c. 4 1/2'

Question 2
Type AC cable shall be permitted to be unsupported where the cable is not more than _______ feet in length where flexibility is necessary.

a. 2'

b. 3'

c. 4 1/2'

Question 3
Type MC Cable must be supported (and secured) at internals not exceeding ______ feet.

a. 2 feet

b. 4 feet

c. 6 feet

Question 4
Armored cable installed in thermal insulation shall have conductors rated at ________.

a. 60 degrees centigrade

b. 75 degrees centigrade

c. 90 degrees centigrade

Question 5
One disadvantage of the use of cables over raceways is that ___________ .

a. it is cheaper

b. it is easier to install

c. it cannot pull in additional circuits