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

NEC Section 110.12

NEC Article 230

NEC Section 210.5(C)

NEC Section 402.3

Question 1 of 20

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

It is grounded at one end only.

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

It is grounded at every instrument.

It is not grounded.

Question 2 of 20

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

It can be used in multifamily dwellings.

It is fungus- and corrosion-resistant.

It can carry a higher voltage.

It cannot be used in ducts or plenums.

Question 3 of 20

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

stranded wire

smaller wire

larger wire

solid wire

Question 4 of 20

5. Which of the following describes Type FCC cable?

Fixture cable circuit

Flat conductor cable

Fine conductive cable

Fine concentric copper

Question 5 of 20

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

Stranding

Teflon®

Nylon

Linking

Question 6 of 20

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

Four-conductor cable

Two-conductor cable

Five-conductor cable

Three-conductor cable

Question 7 of 20

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

Put back-tension on the conductors to prevent kinking.

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

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

Fill the conduit with lubricant.

Question 8 of 20

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

Type MV

Type UF

Type TC

Type MC

Question 9 of 20

10. Type NMS cable is described as ________.

medium voltage cable

nonmetallic slit cable

metal-clad cable

nonmetallic-sheathed cable

Question 10 of 20

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

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

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

Question 11 of 20

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

Green

Black

Blue

Yellow

Question 12 of 20

13. Size 4/0 wire has a ________.

greater resistance than size 3/0

smaller cross-sectional area than size 3/0

greater cross-sectional area than size 3/0

smaller diameter than size 3/0

Question 13 of 20

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

green

black

red

grey

Question 14 of 20

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

Voltage rating

Wire size

Cable type

Prohibited uses

Question 15 of 20

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

Type UF

Type NMC

Type MC

Type NM

Question 16 of 20

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

American Wire Gauge

Manufacturer's Foundation

International Electrotechnical Commission

Manufacturer's Gauge

Question 17 of 20

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

NEC Article 340

NEC Chapter 9, Table 8

NEC Table 400.4

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

Question 18 of 20

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

cable

channel wire assembly

fixture wire

shield drain

Question 19 of 20

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

Type UF and NMC

Type MC and NM

Type UF and MC

Type NM and NMC

Question 20 of 20

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