TAP Services

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

Combination couplings

Flex connectors

Hinged couplings

Expansion couplings

Question 1 of 20

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

IMC

HDPE

RMC

EMT

Question 2 of 20

3. 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 3 of 20

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

Tee fittings

Trough crosses

End plates

Derating factors

Question 4 of 20

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

HDPE

LFNC

PVC

IMC

Question 5 of 20

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

10'

20'

15'

8'

Question 6 of 20

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

rigid polyvinyl chloride conduit

liquidtight flexible nonmetallic conduit

high-density polyethylene conduit

liquidtight flexible metal conduit

Question 7 of 20

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

bundle wires and cables together

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

connect conduit to boxes

carry wires through conduit and other types of raceways

Question 8 of 20

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

Type LR

Type LL

Type X

Type T

Question 9 of 20

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

identical conductors in flexible conduit

identical conductors in steel conduit

LFNC

HDPE

Question 10 of 20

11. EMT is ________.

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

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

Question 11 of 20

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

IMC

RMC

PVC

Black enamel steel conduit

Question 12 of 20

13. What is another name for a standoff support?

Trapeze

Clamp back

Beam clamp

Minerallac®

Question 13 of 20

14.

Which kind of anchor is shown in the figure above?

Self-drilling

Drop-in

Drive-in

Toggle bolt

Question 14 of 20

15. EMT must be supported every ________.

5 feet

10 feet

3 feet

15 feet

Question 15 of 20

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

Type C

Type X

Type L

Type T

Question 16 of 20

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

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

It requires more maintenance.

It is more resistant to wet environments.

It is too thin to be threaded.

Question 17 of 20

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

Black enamel steel conduit

Aluminum

RMC

Flexible metal conduit

Question 18 of 20

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

IMC marking requirements

IMC support requirements

RMC support requirements

Equipment grounding conductor sizes

Question 19 of 20

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

Type LL

Type LR

Type LRL

Type LB

Question 20 of 20

Mailing List

Quick Nav

TAP Services

	FOLLOW US ON SOCIAL MEDIA

TAP Services

Mailing List

Quick Nav

Get Social

TAP Services