Delmar's Unit 10

Question 1

What are the four factors that determine the resistance of a wire?

Answer 1

material.
length.
area.
temperature.

Question 2

When conductors are used in a high-temperature locations, their current capacity must be ___________.

Answer 2

reduced

Question 3

The current-carrying capacity of conductors must be reduced when there are more than _____ in a raceway?

Answer 3

three

Question 4

The amount of current a conductor can carry is affected by the _________ around the wire

Answer 4

type of insulation

Question 5

In the English system, what is used as a standard for determining the resistance of different types of wire?

Answer 5

mil-foot

Question 6

After wires have been installed, they should be checked for shorts or grounds with what?

Answer 6

a megger