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