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1.

Which kind of anchor is shown in the figure above?

Toggle bolt

Drop-in

Drive-in

Self-drilling

Question 1 of 20

2. To act as a moisture seal, an outer covering of liquidtight, sunlight-resistant flexible material is placed around ________.

rigid polyvinyl chloride conduit

high-density polyethylene conduit

liquidtight flexible nonmetallic conduit

liquidtight flexible metal conduit

Question 2 of 20

3. What type of conduit should be used where corrosion is a factor?

RMC

IMC

PVC

Black enamel steel conduit

Question 3 of 20

4. What type of conduit is used to connect machines that vibrate during operation?

RMC

Aluminum

Black enamel steel conduit

Flexible metal conduit

Question 4 of 20

5. Which types of conduit bodies are used to provide a pull point on a straight conduit run?

Type T

Type C

Type L

Type X

Question 5 of 20

6. Which of the following can be found in NEC Article 344?

RMC support requirements

IMC marking requirements

Equipment grounding conductor sizes

IMC support requirements

Question 6 of 20

7. What type of conduit is approved for direct burial?

EMT

RMC

HDPE

IMC

Question 7 of 20

8. Which of the following types of conduit bodies has a 90∘ connector with the cover on the left?

Type LL

Type LB

Type LR

Type LRL

Question 8 of 20

9. NEC Article 386 contains ________.

regulations for combination raceways

information on multi-outlet assemblies

the installation specifications of surface metal raceways

a list of the various types of special raceways

Question 9 of 20

10. EMT must be supported every ________.

10 feet

5 feet

3 feet

15 feet

Question 10 of 20

11. The purpose of a sealing fitting is to ________.

prevent the passage of gases, vapors, and flames through a conduit

carry wires through conduit and other types of raceways

bundle wires and cables together

connect conduit to boxes

Question 11 of 20

12. EMT is ________.

conduit that has been given a thin coating of PVC

steel conduit coated with a black enamel

conduit that is constructed of metal thick enough to permit the cutting of pipe threads at each end

often referred to as thinwall conduit and is too thin to be threaded

Question 12 of 20

13. Which of the following are used to prevent damage to PVC caused by temperature changes?

Expansion couplings

Hinged couplings

Flex connectors

Combination couplings

Question 13 of 20

14. What is another name for a standoff support?

Clamp back

Trapeze

Minerallac®

Beam clamp

Question 14 of 20

15. Which of the following is true of aluminum conduit?

It does not require supplementary corrosion protection when used in concrete.

It is more resistant to wet environments.

It is too thin to be threaded.

It requires more maintenance.

Question 15 of 20

16. What is the maximum allowable spacing between horizontal wireway supports?

20'

8'

10'

15'

Question 16 of 20

17. Which of the following shall only be applied when the number of current-carrying conductors in a wireway exceeds three?

Trough crosses

End plates

Tee fittings

Derating factors

Question 17 of 20

18. Which of the following conduits has a wall thickness less than that of RMC but thicker than EMT?

HDPE

PVC

LFNC

IMC

Question 18 of 20

19. Which types of conduit bodies are used to join four intersecting conduits?

Type X

Type T

Type LL

Type LR

Question 19 of 20

20. The voltage drop of conductors carrying alternating current in PVC will be less than that of ________.

identical conductors in flexible conduit

HDPE

LFNC

identical conductors in steel conduit

Question 20 of 20

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