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Test your basic knowledge |
Lighting
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 25 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Fixtures subject to direct discharge from air- conditioning vents are not good candidates for ____.
Energy- saving fluorescent lamps
Energy- saving fluorescent lamps.
Lamp color lamp color
Existing lamps ballast luminaires
2. The ____ is a relative indication of how well colors can be distinguished under the light produced by a lamp with a particular color temperature.
The least expensive lamp
Energy- saving fluorescent lamps.
Magnetic core- and- coil ballast; electronic ballast
Color rendering index (CRI)
3. Unlike ____ - some ____ can be dimmed - but they also can produce significant levels of harmonic distortion.
Metal halide lamps
Coefficient of utilization (CU)
Light colors for paint and flooring
Magnetic core- and- coil ballast; electronic ballast
4. Used as a starting place for an energy management program - lighting can attract _____ - since everyone has ideas about lighting.
Incandescent lamps
Immediate employee attention and participation
First cost rather than life- cycle costs
Light colors for paint and flooring
5. ____ are directional and useful for active areas; ____ are fairly non - directional.
Lighting system
Light sources (lamps) luminaires (or fixtures) ballast.
Infrared sensor ultra violet sensors
Energy- saving fluorescent lamps
6. The basic ratings include: ____ - ____ - ____ - ____ - ____ and ____.
Energy- saving fluorescent lamps.
Infrared sensor ultra violet sensors
Existing lamps ballast luminaires
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
7. Some ____ can be installed in fixtures designed to operate mercury vapor lamps.
PCB oil
Light sources (lamps) luminaires (or fixtures) ballast.
Metal halide lamps
Incandescent lamps
8. Lighting improvements are excellent investments in most commercial businesses because lighting accounts for a large part of the energy bill - ____.
Ranging from 30-70% of the total energy cost.
Incandescent lamps
Light colors for paint and flooring
Energy- saving fluorescent lamps
9. The T- measure for a fluorescent lamp is ____.
Color rendering index (CRI)
The measure of the diameter of the lamp in eighths of an inch.
Lamp color lamp color
Energy- saving fluorescent lamps.
10. The _____ of a lamp is an estimate of the light output (lumens) divided by the electrical power input (watts) under test conditions.
Magnetic core- and- coil ballast; electronic ballast
Light colors for paint and flooring
Color rendering index (CRI)
Luminous efficacy
11. Unfortunately - many design decisions are made on the basis of ____ which include operation and maintenance cost.
Color rendering index (CRI)
Ranging from 30-70% of the total energy cost.
First cost rather than life- cycle costs
The least expensive lamp
12. ____ which can replace the standard lamps can reduce power demand and energy use by about 15%.
The least expensive lamp
Existing lamps ballast luminaires
Energy- saving fluorescent lamps
First cost rather than life- cycle costs
13. Using ____ - or cleaning these surfaces more often can make the existing light more effective and thereby save money.
Luminous efficacy
The measure of the diameter of the lamp in eighths of an inch.
The least expensive lamp
Light colors for paint and flooring
14. Fluorescent lamps are available in ____ - ____ - and ____ configurations.
Standard high output (HO) very high output (VHO)
Ranging from 30-70% of the total energy cost.
The measure of the diameter of the lamp in eighths of an inch.
PCB oil
15. Many older ballasts - especially those manufactured before 1975 - utilized ____ which contains some of the most toxic chemicals known.
Immediate employee attention and participation
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
PCB oil
Existing lamps ballast luminaires
16. _____ render colors well - are inexpensive to purchase - easily dimmed - small - and controllable which is useful for product display.
Lamp color lamp color
Metal halide lamps
Light colors for paint and flooring
Incandescent lamps
17. The ____ of a lighting fixture is the ratio of the light leaving the fixture to the light produced by the lamps.
Standard high output (HO) very high output (VHO)
Coefficient of utilization (CU)
Light sources (lamps) luminaires (or fixtures) ballast.
Metal halide lamps
18. Often - ____ to buy is not the least expensive to operate.
Light colors for paint and flooring
Older coil and core ballasts an electronic ballast
Color rendering index (CRI)
The least expensive lamp
19. ____ can be installed as a screw- in or hardwired conversion kit and have a lifetime of at least 10 -000 hours.
Compact fluorescent lamps
Standard high output (HO) very high output (VHO)
Color rendering index (CRI)
Ranging from 30-70% of the total energy cost.
20. When ____ in a lighting fixture fail - replacement with ____ should be considered.
Light sources (lamps) luminaires (or fixtures) ballast.
Incandescent lamps
Older coil and core ballasts an electronic ballast
Ranging from 30-70% of the total energy cost.
21. The ____ provides many opportunities for cost- effective energy savings with little or no inconvenience.
Ranging from 30-70% of the total energy cost.
Lighting system
Light colors for paint and flooring
PCB oil
22. A lighting system consists of _____ - ____ - and ____.
Energy- saving fluorescent lamps.
Infrared sensor ultra violet sensors
Light sources (lamps) luminaires (or fixtures) ballast.
Ranging from 30-70% of the total energy cost.
23. Light from ____ is produced indirectly by a cathode exciting a gas in which an electrical arc forms which then emits light.
First cost rather than life- cycle costs
Discharge- type lamps (e.g. - fluorescent - mercury vapor - metal halide - high- pressure sodium - and low- pressure sodium)
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
The measure of the diameter of the lamp in eighths of an inch.
24. Replacing ____ - ____ and ____ with newer - more energy- efficient models offers the potential for significant savings on lighting system cost in many facilities.
Standard high output (HO) very high output (VHO)
The least expensive lamp
Existing lamps ballast luminaires
Luminous efficacy
25. The energy manager should be sensitive to ____ when recommending changing lighting changes and should not recommend changing _____ unless nearly everyone is in favor of the proposed change.
Ranging from 30-70% of the total energy cost.
Standard high output (HO) very high output (VHO)
Magnetic core- and- coil ballast; electronic ballast
Lamp color lamp color