Conductors

Question 1

What is the primary function of a steel strand in a conductor?

Answer 1

To provide tensile strength.

Question 2

What is the least resistive material?
A) Gold
B) Silver
C) Copper
D) Aluminum

Answer 2

B)

Question 3

What is the purpose of using stranded conductors?

Answer 3

To provide flexibility.

Question 4

What conductor property is inversely proportional to resistance?

Answer 4

Area

Question 5

What has the most free electrons?
A) insulators
B) conductors
C) semiconductors

Answer 5

B)

Question 6

Which material has the highest dielectric strength?
A) air
B) mica
C) paper
D) Teflon

Answer 6

B)

Question 7

When comparing a No. 6 AWG conductor to a No. 4 AWG conductor, the No. 6 AWG is (smaller/larger) in area and has (less/more) resistance…

Answer 7

Smaller/more

Question 8

What is the resistivity of copper?
A) 17.2 X 10(-8) Ohm•m
B) 0.172 X 10(-8) Ohm•m
C) 1.72 X 10(-8) Ohm•m

Answer 8

C)

Question 9

If the measured diameter of a conductor is 6.54mm, what is the area of the conductor?

Answer 9

33.59 mm

Question 10

If the measured diameter of a conductor is 0.96 inches, what is the area of the conductor in kcmil?

Answer 10

900 kcmil

Question 11

If the AREA of a No. 14 AWG conductor is 2.08 mm2, then what is the area of a No. 15 AWG conductor?

Answer 11

1.65 mm

Question 12

If the resistance of a No. 6 AWG conductor is 1.293 Ohms per 1000m, what is the resistance of 1000m of a No. 3 AWG conductor?

Answer 12

O.647 ohms

Question 13

An 18 A, two-wire load is located 20 m from the source. If the resistance of the circuit conductors is 5.19 ohms per 1000m, what is the voltage drop across each conductor?

Answer 13

1.87 V