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26203-11 Electric Lighting

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

Question 1 of 25

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

Question 2 of 25

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

Question 3 of 25

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

Question 4 of 25

5. Ultrasonic occupancy sensors are triggered by ________.

Question 5 of 25

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

Question 6 of 25

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

Question 7 of 25

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

Question 8 of 25

9. 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 9 of 25

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

Question 10 of 25

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

Question 11 of 25

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

Question 12 of 25

13. Which lamp produces a cool color tone?

Question 13 of 25

14. Chandeliers are a type of ________.

Question 14 of 25

15. 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 15 of 25

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

Question 16 of 25

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

Question 17 of 25

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

Question 18 of 25

19. NEC Article 410 contains requirements for installing ________.

Question 19 of 25

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

Question 20 of 25

21. Which type of ballast has the highest efficiency?

Question 21 of 25

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

Question 22 of 25

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

Question 23 of 25

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

Question 24 of 25

25. 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 25 of 25


 

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