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26207-11 Cable Tray

1. Electrical conductors may be installed in ________.

Question 1 of 25

2. Which of the following are used on cable trays to protect the cable insulation from direct sunlight?

Question 2 of 25

3. A dropout plate can be used when the cable exits the tray ________.

Question 3 of 25

4. The details of supports and hangers for a cable tray system installation are usually worked out by the ________.

Question 4 of 25

5. When installing single conductor cables in tray systems with conductors size 4/0 and larger, they must be ________.

Question 5 of 25

6. Which of the following consists of two parallel channels connected by rungs?

Question 6 of 25

7. What kind of mounting is often used in tunnels and other underground installations where equipment is separated by long distances?

Question 7 of 25

8. Which of the following statements is true regarding cable splices in cable trays?

Question 8 of 25

9. A cable hanger elbow is a ________.

Question 9 of 25

10. Symbols used to show cable tray systems on working drawings are explained in the ________.

Question 10 of 25

11. Which of the following occurs when the load applied causes the fibers on the tension side of the rung to stretch and permanently deform?

Question 11 of 25

12. The installation of cable tray is covered in ________.

Question 12 of 25

13. Except for Type MC, all multiconductor cables over 600V must be separated by a solid divider from cables rated under ________.

Question 13 of 25

14. The method of supporting cable trays using threaded rods and hanger clamps is known as ________.

Question 14 of 25

15. In short vertical runs, the cables are usually supported by ________.

Question 15 of 25

16. What type of fittings are used to build an offset in a cable tray system?

Question 16 of 25

17. Maintain grounding continuity in a cable tray system by connecting the motor to the cable tray system using ________.

Question 17 of 25

18. The maximum pull that should be exerted on cables being pulled in tray when using a basket grip is ________.

Question 18 of 25

19. Isolate cables of different voltages using ________.

Question 19 of 25

20. Which of the following provides a curved surface for the cable to follow as it passes from the tray?

Question 20 of 25

21. In common practice, engineering firms show the layout of the cable tray system in ________.

Question 21 of 25

22. An NEC® requirement for grounding and bonding cable tray installations is ________.

Question 22 of 25

23. Given a cable tray that is available in standard widths of 6, 12, 18, 24, and 36 inches, what is the minimum width of a 3-inch deep cable tray used for the following cables that are all 4/0 or larger: two with 1.5-inch diameter; three with 1.75-inch diameter; and two with 2.5-inch diameter?

Question 23 of 25

24. The most desirable method of exiting cable from a cable tray is ________.

Question 24 of 25

25. Which if the following rules must be followed if all of the cables in a tray are smaller than 4/0?

Question 25 of 25