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26203-11 Electric Lighting

1. Which of the following materials absorbs the most light?

Question 1 of 25

2. NEC® requirements must be adhered to when installing incandescent recessed lighting fixtures because they ________.

Question 2 of 25

3. Ultrasonic occupancy sensors are triggered by ________.

Question 3 of 25

4. Which color temperature produces a balance between warmth and coolness?

Question 4 of 25

5. The junction box and recessed lighting fixture should be separated by a minimum distance of ________.

Question 5 of 25

6. Which of the following is an HID ballast category?

Question 6 of 25

7. Which of the following contain ballasts that provide high voltage across the lamp's electrodes at startup, causing them to emit electrons?

Question 7 of 25

8. Fluorescent lamps with a single pin at each end are known as ________.

Question 8 of 25

9. Chandeliers are a type of ________.

Question 9 of 25

10. When installing a surface-mounted fixture weighing more than 50 pounds, it ________.

Question 10 of 25

11. Unless it is protected or is a low-voltage type of track, track lighting on a wall must be installed at least ________.

Question 11 of 25

12. Which section of the NEC® requires that at least 6" of free conductor length be left at each outlet box when cutting the branch circuit wires in preparation for connecting a light fixture?

Question 12 of 25

13. Light enters the eye through a transparent layer called the ________.

Question 13 of 25

14. Which of the following describes a color temperature of 4,100K and higher?

Question 14 of 25

15. When used outdoors, photosensors should be aimed due ________.

Question 15 of 25

16. The type of high-intensity discharge (HID. lamp that has excellent color rendition is the ________.

Question 16 of 25

17. Which type of ballast has the highest efficiency?

Question 17 of 25

18. In an office where people sit quietly at desks from 8:30 a.m. to 5:00 p.m., which type of lighting control would be most efficient in turning off the lights when they were not needed?

Question 18 of 25

19. Which lamp produces a cool color tone?

Question 19 of 25

20. Which of the following should be at least 18" in length when used to connect a junction box mounted above a suspended ceiling to a fixture installed in a suspended ceiling?

Question 20 of 25

21. NEC Article 410 contains requirements for installing ________.

Question 21 of 25

22. Which of the following will shorten the life of a filament in an incandescent lamp?

Question 22 of 25

23. When white light is passed through a prism, how many total colors are visible?

Question 23 of 25

24. Compared to standard incandescent lamps, which of the following provides longer life and improved light quality when used in a lamp?

Question 24 of 25

25. Which of the following are often used in conjunction with time clocks to turn off lighting when it is no longer needed?

Question 25 of 25


 

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