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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 ____.
Discharge- type lamps (e.g. - fluorescent - mercury vapor - metal halide - high- pressure sodium - and low- pressure sodium)
Lighting system
Luminous efficacy
Energy- saving fluorescent lamps.
2. 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.
Infrared sensor ultra violet sensors
Lamp color lamp color
Coefficient of utilization (CU)
Metal halide lamps
3. Used as a starting place for an energy management program - lighting can attract _____ - since everyone has ideas about lighting.
Color rendering index (CRI)
Lamp color lamp color
Immediate employee attention and participation
Luminous efficacy
4. Fluorescent lamps are available in ____ - ____ - and ____ configurations.
Standard high output (HO) very high output (VHO)
Lighting system
Luminous efficacy
Color rendering index (CRI)
5. ____ can be installed as a screw- in or hardwired conversion kit and have a lifetime of at least 10 -000 hours.
Compact fluorescent lamps
Ranging from 30-70% of the total energy cost.
Older coil and core ballasts an electronic ballast
Existing lamps ballast luminaires
6. Replacing ____ - ____ and ____ with newer - more energy- efficient models offers the potential for significant savings on lighting system cost in many facilities.
Older coil and core ballasts an electronic ballast
Existing lamps ballast luminaires
Energy- saving fluorescent lamps.
Energy- saving fluorescent lamps
7. ____ which can replace the standard lamps can reduce power demand and energy use by about 15%.
Discharge- type lamps (e.g. - fluorescent - mercury vapor - metal halide - high- pressure sodium - and low- pressure sodium)
The measure of the diameter of the lamp in eighths of an inch.
Older coil and core ballasts an electronic ballast
Energy- saving fluorescent lamps
8. Often - ____ to buy is not the least expensive to operate.
Compact fluorescent lamps
Coefficient of utilization (CU)
The least expensive lamp
Standard high output (HO) very high output (VHO)
9. ____ are directional and useful for active areas; ____ are fairly non - directional.
Coefficient of utilization (CU)
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
Incandescent lamps
Infrared sensor ultra violet sensors
10. Unfortunately - many design decisions are made on the basis of ____ which include operation and maintenance cost.
Incandescent lamps
First cost rather than life- cycle costs
Lighting system
Older coil and core ballasts an electronic ballast
11. The _____ of a lamp is an estimate of the light output (lumens) divided by the electrical power input (watts) under test conditions.
Energy- saving fluorescent lamps
Coefficient of utilization (CU)
Luminous efficacy
Immediate employee attention and participation
12. Unlike ____ - some ____ can be dimmed - but they also can produce significant levels of harmonic distortion.
The least expensive lamp
Magnetic core- and- coil ballast; electronic ballast
Light sources (lamps) luminaires (or fixtures) ballast.
Color rendering index (CRI)
13. A lighting system consists of _____ - ____ - and ____.
Energy- saving fluorescent lamps.
Coefficient of utilization (CU)
The measure of the diameter of the lamp in eighths of an inch.
Light sources (lamps) luminaires (or fixtures) ballast.
14. Light from ____ is produced indirectly by a cathode exciting a gas in which an electrical arc forms which then emits light.
Incandescent lamps
Discharge- type lamps (e.g. - fluorescent - mercury vapor - metal halide - high- pressure sodium - and low- pressure sodium)
Color rendering index (CRI)
Lamp color lamp color
15. Using ____ - or cleaning these surfaces more often can make the existing light more effective and thereby save money.
Infrared sensor ultra violet sensors
Immediate employee attention and participation
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
Light colors for paint and flooring
16. The ____ provides many opportunities for cost- effective energy savings with little or no inconvenience.
First cost rather than life- cycle costs
Lighting system
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
Energy- saving fluorescent lamps
17. _____ render colors well - are inexpensive to purchase - easily dimmed - small - and controllable which is useful for product display.
Immediate employee attention and participation
First cost rather than life- cycle costs
Incandescent lamps
Discharge- type lamps (e.g. - fluorescent - mercury vapor - metal halide - high- pressure sodium - and low- pressure sodium)
18. The ____ is a relative indication of how well colors can be distinguished under the light produced by a lamp with a particular color temperature.
Color rendering index (CRI)
Energy- saving fluorescent lamps
Standard high output (HO) very high output (VHO)
Metal halide lamps
19. Some ____ can be installed in fixtures designed to operate mercury vapor lamps.
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
First cost rather than life- cycle costs
Standard high output (HO) very high output (VHO)
Metal halide lamps
20. Lighting improvements are excellent investments in most commercial businesses because lighting accounts for a large part of the energy bill - ____.
Immediate employee attention and participation
Standard high output (HO) very high output (VHO)
Ranging from 30-70% of the total energy cost.
First cost rather than life- cycle costs
21. The basic ratings include: ____ - ____ - ____ - ____ - ____ and ____.
Metal halide lamps
Existing lamps ballast luminaires
The measure of the diameter of the lamp in eighths of an inch.
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
22. The T- measure for a fluorescent lamp is ____.
The measure of the diameter of the lamp in eighths of an inch.
Ranging from 30-70% of the total energy cost.
The least expensive lamp
Luminous efficacy
23. Many older ballasts - especially those manufactured before 1975 - utilized ____ which contains some of the most toxic chemicals known.
The measure of the diameter of the lamp in eighths of an inch.
Immediate employee attention and participation
Energy- saving fluorescent lamps
PCB oil
24. The ____ of a lighting fixture is the ratio of the light leaving the fixture to the light produced by the lamps.
Energy- saving fluorescent lamps
Energy- saving fluorescent lamps.
Ranging from 30-70% of the total energy cost.
Coefficient of utilization (CU)
25. When ____ in a lighting fixture fail - replacement with ____ should be considered.
Older coil and core ballasts an electronic ballast
Existing lamps ballast luminaires
Luminous efficacy (lumens/watt) color temperature (Kelvins) color rendering index (CRI) cost ($) rated life (operation hours) labor required for relamping.
Lamp color lamp color