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1. Which of the following cables should include a yellow color-coded conductor?

Two-conductor cable

Three-conductor cable

Four-conductor cable

Five-conductor cable

Question 1 of 20

2. Which of the following types of cable is suitable for direct burial?

Type MC

Type NMC

Type NM

Type UF

Question 2 of 20

3. In addition to being both flame-retardant and moisture-resistant, what characteristic does Type NMC cable have?

It is fungus- and corrosion-resistant.

It can be used in multifamily dwellings.

It cannot be used in ducts or plenums.

It can carry a higher voltage.

Question 3 of 20

4. Which of the following is true of shielding in instrumentation circuits?

It is not grounded.

It is grounded by floating the ground at both ends of the wire.

It is grounded at every instrument.

It is grounded at one end only.

Question 4 of 20

5. The cable that is used for feeders and branch circuits is ________.

Type MV

Type TC

Type UF

Type MC

Question 5 of 20

6. Type NMS cable is described as ________.

medium voltage cable

metal-clad cable

nonmetallic slit cable

nonmetallic-sheathed cable

Question 6 of 20

7. In two-conductor cable, the high side or hot wire is ________.

green

red

grey

black

Question 7 of 20

8. When used as a service-entrance cable, Type SE cable must be installed as specified in ________.

NEC Article 230

NEC Section 402.3

NEC Section 210.5(C)

NEC Section 110.12

Question 8 of 20

9. Which of the following is not shown with cable markings?

Wire size

Prohibited uses

Cable type

Voltage rating

Question 9 of 20

10. The United States uses which of the following standard systems of wire sizes?

American Wire Gauge

International Electrotechnical Commission

Manufacturer's Foundation

Manufacturer's Gauge

Question 10 of 20

11. Which of the following increases the flexibility of a wire?

Teflon®

Stranding

Nylon

Linking

Question 11 of 20

12. Size 4/0 wire has a ________.

smaller diameter than size 3/0

greater resistance than size 3/0

greater cross-sectional area than size 3/0

smaller cross-sectional area than size 3/0

Question 12 of 20

13. The operating temperature of the circuit is a primary factor in the selection of a ________.

fixture wire

cable

channel wire assembly

shield drain

Question 13 of 20

14. Which of the following describes Type TC cable?

It consists of two or more insulated conductors twisted together and covered with a nonmetallic jacket.

It can be installed in a U-channel surface metal raceway with one side open.

It comes in sizes No. 12 AWG and larger for copper.

It has three to five flat conductors separated and enclosed in a flame-retardant assembly.

Question 14 of 20

15. Which of the following types of cables may be installed in concealed locations?

Type UF and MC

Type MC and NM

Type NM and NMC

Type UF and NMC

Question 15 of 20

16. A grounding wire may be which of the following colors?

Blue

Black

Green

Yellow

Question 16 of 20

17. Which of the following describes Type FCC cable?

Fixture cable circuit

Flat conductor cable

Fine conductive cable

Fine concentric copper

Question 17 of 20

18. Where can you find the ampacity of conductors for given conditions?

NEC Tables 310.15(B)(16) through 310.15(B)(19)

NEC Chapter 9, Table 8

NEC Table 400.4

NEC Article 340

Question 18 of 20

19. It is important to do which of the following when conductors are fed into long runs of conduit?

Make sure the wires are straight and do not cross over each other.

Fill the conduit with lubricant.

Hold tension on the spools so that excess wire does not spill onto the floor.

Put back-tension on the conductors to prevent kinking.

Question 19 of 20

20. According to the standard system of wire sizes in the United States, which ranges from 50 to 1, a larger number represents ________.

larger wire

stranded wire

smaller wire

solid wire

Question 20 of 20

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