CSAP 2, Lvl 1, Lesson 1

Change the following mil measurement to inches. Calculate to three decimal places. 125 mils = ? inch

.125 in

Change the following mil measurement to inches. Calculate to four decimal places. 187.5 mils = ? inch

.1875 in

Change the following mil measurement to inches. Calculate to one decimal place. 500 mils = ? inch

.5 in

Match the correct wire size with the information given. 0 00 000 0000

0 → 1/0 AWG 00 → 2/0 AWG 000 → 3/0 AWG 0000 → 4/0 AWG

Change the following measurement to mils. 0.125 inch = ? mils

125 mils

What is the diameter in mils of a conductor having a cross-sectional area of 18,225 cmils? Diameter = ? mils

135 mils

What is the circular mil area of a wire having the following diameter? 125 mils = ? circular mils

15,625 cmils

Change the following measurement to mils. 0.25 inch = ? mils

250 mils

What is the circular mil area of a wire having the following diameter? 500 mils = ? circular mils

250,000 cmils

Change the following measurement to mils. 3/8 inch = ? mils

375 mils

What is the diameter in mils of a conductor having a cross-sectional area of 1,764 cmils? Diameter = ? mils

42 mils

The square mil area for a two-inch wide by 1/4-inch thick copper busbar is ? square mils.

500,000 sq mils

What is the circular mil area of a wire having the following diameter? 25 mils = ? circular mils

625 cmils

The circular mil area for a two-inch wide by 1/4-inch thick copper busbar is ? cmils. (Round the FINAL answer to the nearest whole number.)

636,618 cmils

What is the diameter in mils of a conductor having a cross-sectional area of 4,225 cmils? Diameter = ? mils

65 mils

Change the following measurement to mils. 3/4 inch = ? mils

750 mils

Match the circular mil area of the conductors as given in NEC Chapter 9, Table 8. 8 AWG aluminum 10 AWG copper 14 AWG copper

8 AWG aluminum → 16,510 cmils 10 AWG copper → 10,380 cmils 14 AWG copper → 4,110 cmils

Match the next larger standard size conductor for the minimum circular mil areas calculated. 9,543 cmil 83,542 cmil 177,645 cmil 350 kcmil

9,543 cmil → 10 AWG 83,542 cmil → 1 AWG 177,645 cmil → 4/0 AWG 350 kcmil → 350 kcmil

A 6 AWG copper conductor is smaller than a 10 AWG copper conductor.

False

A circular mil is a circle with a circumference of one mil.

False

The circular mil area of 2/0 AWG copper wire is more than 3/0 AWG copper wire.

False

The letters kcmil stand for 10,000 circular mils.

False

To find the cross-sectional area of a wire in circular mils, square the diameter expressed in square mils.

False

A mil foot is one foot in length with a diameter of one mil.

True

The circular mil area of 10 AWG copper is the same as the circular mil area of 10 AWG aluminum.

True

The symbol for aught is Ø.

True

What is the DC resistance at 75°C per 1,000 feet of 2/0 AWG uncoated copper conductors?

a. 0.0967 Ω

Conductor sizes are expressed in the NEC in ? or in ? .

a. American Wire Gage (AWG) / circular mils 110.6

What is the DC resistance at 75°C per 1,000 feet of 4/0 AWG copper-clad aluminum conductors?

b. 0.100 Ω

What is the maximum size conductor that is generally permitted to be a solid conductor where installed in a raceway?

b. 10 AWG 310.3(C)

What is the minimum size copper conductor generally permitted per NEC 310.3 for conductors with a voltage rating of 0 through 2,000 volts?

b. 14 AWG

The temperature rating used for the resistance given in NEC Chapter 9, Table 8 is based on ? .

b. 75°C

Which of the following would not be included in NEC Chapter 9, Table 8?

c. III. and VI. III. Type of insulation used on the conductor VI. Permitted use of a conductor

What is the DC resistance at 75°C per 1,000 feet of 2/0 AWG aluminum conductors?

c. 0.159 Ω

What is the minimum size conductor generally permitted for aluminum materials per 310.3(A) for conductors with a voltage rating of 0 through 2,000 volts?

c. 12 AWG

What is the minimum size conductor generally permitted for copper-clad aluminum materials per NEC 310.3 for conductors with a voltage rating of 0 through 2,000 volts?

c. 12 AWG

The circular mil area of a 1 AWG copper-clad aluminum wire is ? .

c. 83,690 cmils

What is the DC resistance at 75°C per 1,000 feet of 4 AWG uncoated copper conductors?

d. 0.308 Ω

In accordance with the AWG, what number (size) is the next largest above 1 AWG?

d. Ø or 1/0 AWG