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