Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
33 Cards in this Set
- Front
- Back
|
Accent lighting |
Directional lighting used to accent, emphasize or draw attention to a part of a landscape |
|
|
Unit used to measure strength of electrical current |
Amperage |
|
|
The lighting of large landscaped areas, usually with flood lights |
Area lighting |
|
|
Color temperatures |
A measure of a light source "whiteness" expressed in degrees Kelvin, to indicate the warmth or coolness of light. Warm is towards yellow Cool is towards blue |
|
|
Illumination of an area or object from two or more points |
Cross lighting |
|
|
A luminaire which is mounted above the ceiling, wall, or other surface, with the opening flush with the surface |
Flush mounted or recessed |
|
|
Footcandle |
One foot candle is the illumination falling on a surface one square foot from a standard candle located one foot away |
|
|
What does LED stand for? |
Light emitting diode |
|
|
Low voltage lighting system |
A lighting system that operates on 12 volt current instead of the standard 120 volts or higher |
|
|
Lumen |
Amount of light emitted by a lamp |
|
|
One lumen per square foot is ____ footcandles |
1 |
|
|
Lighting that utilizes water as a reflecting surface |
Mirror lighting |
|
|
Transformer |
Device used to convert 120 volt current into 12 volt current |
|
|
A measurement of the electromotive force in an electrical circuit |
Voltage |
|
|
Electromotive force |
Electric pressure |
|
|
Unit of measurement of electrical power |
Watts |
|
|
Difference between low voltage lighting systems and line voltage |
Low voltage systems run on 12 volt current Line voltage systems run on 120 volts |
|
|
Why should low voltage transformers be mounted outside the home, and NOT on a wooden fence? |
They may heat up and create a fire hazard |
|
|
Primary advantages of LED lighting |
Low energy use Longer life than incandescent lighting |
|
|
Up lighting or spotlighting |
|
|
Garden feature spotlighting |
|
|
Down lighting or moon lighting |
|
|
Backlighting |
|
|
Shadowing |
|
|
This occurs when light from a fixture is directly visible |
Glare |
|
|
What is allowable voltage drop? |
1.5 volts |
|
|
Often used to ensure proper seal is provided at each wire connection |
Ace connector |
|
|
Formula for calculating voltage drop for 12-2 wire |
Total watts x length of run divided by constant of the wire |
|
|
If there is more than 100 watts lamp load on the run, which size wire should be used? |
10-2 |
|
|
If the runoff the wire is above 100 feet, which gauge wire should be used? |
10-2 |
|
|
Different gauges of wire |
|
|
Wires should be buried at least ___, and ___ under driveways |
At least 6 inches 18 inches under driveways |
|
|
Do not install electrical fixtures within __feet of a water feature |
10 feet |
