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26203-11 Electric Lighting

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

Question 1 of 25

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

Question 2 of 25

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

Question 3 of 25

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

Question 4 of 25

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

Question 5 of 25

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

Question 6 of 25

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

Question 7 of 25

8. Which type of ballast has the highest efficiency?

Question 8 of 25

9. Ultrasonic occupancy sensors are triggered by ________.

Question 9 of 25

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

Question 10 of 25

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

Question 11 of 25

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

Question 12 of 25

13. 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 13 of 25

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

Question 14 of 25

15. NEC Article 410 contains requirements for installing ________.

Question 15 of 25

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

Question 16 of 25

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

Question 17 of 25

18. 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 18 of 25

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

Question 19 of 25

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

Question 20 of 25

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

Question 21 of 25

22. 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 22 of 25

23. Chandeliers are a type of ________.

Question 23 of 25

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

Question 24 of 25

25. Which lamp produces a cool color tone?

Question 25 of 25


 

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