**1.1.0
Louvres are usually white or silvered are are made of metal or plastic strips in a vertical orientation. If made in a ___ they can often replace
... [Show More] diffusers or prismatic lenses, to give better glare control and reduce eye strain - correct answer Small honeycomb or square pattern
**1.1.1
Semi direct lighting- ___ of the luminaries emitted light is down ward with a smaller component (10%-40%) upward to illuminate the celling and upper walls - correct answer 60%-90%down and smaller 10%-40%up
1.1.2
NEMA types range from ___ Luminaires have have separate designations for horizontal and vertical beam spreads, such as type 2x3 to describe a narrow flood. - correct answer 1(narrow) to 7(wide)
1.2.4
Over work surfaces, downlights are normally suspended at or below eye level. When mounted above eye level, such as in a stairway, hall, and entryway, they are normally equipped with a ___ - correct answer Louvre, diffuser or other bottom shielding
**1.3.2
The classification of a given area as to class, division, and group is the responsibility of the___ - correct answer Owner , insurance company or authority having jurisdiction
1.3.2 - correct answer
1.4.0
In addition to a battery charger and automatic controls, normally have an accessible test switch and pilot light that will require testing for proper operation at intervals and test durations as specified by the manufacturer and applicable codes - correct answer
2.0.0
The amount of light energy from a light source is called a - correct answer Lumen
2.0.0
The footcandle is the unit used to - correct answer measure the illuminance or amount of total light that strikes a horizontal or vertical surface, such as a table or wall
2.1.0
Lighting that uses lumanaries above the visual task area that also contribute to the lighting in the local area - correct answer localized general lighting
2.1.0
Lighting that provides the minimum light levels needed to assist people in exiting a building. - correct answer Egress lighting
2.1.1
Corridor lighting levels should provide at least ___ of adjacent areas - correct answer 20% illuminance
2.1.4
Good color rendition is important in ___ so that the color of the patients skin and eyes can be properly evaluated - correct answer Medical practice
2.2.2
Luminaires with oval shaped reflectors mounted on long arms are commonly used for roadway applications. Because of their appearance, they are often referred to as ___ luminaries - correct answer Cobra head
3.1.0
- a growing group of systems used to control LED drivers individually different technologies are used such as wifi and Bluetooth - correct answer radio frequency (RF)
3.1.0
reduces the lamp voltage and prolongs lamp life but very poor energy efficiency - correct answer Incandescent dimming
**3.2.0
A motion detector or sound detector may not be the right choice when - correct answer occupants of the space sit very quietly at desks
***3.2.0
Ultra sonic sensors transmit ____ and receive a reflected signal to sense the movement of occupants in a space - correct answer Ultrasound at a frequency between 25kHz and 40kHz
***3.2.0
Ultrasonic sensors detect __ - correct answer Movement of occupant in that space
3.1.2
LED billboards, signs, and large video displays ___ assembled into the final product. These modules are made in standard and custom sizes and are available in rigid and flexible forms. - correct answer Arrays of LEDs in separate modules
3.3.0
Time clocks are often used in conjunction with ___ in order to turn off luminaries when they are no longer needed - correct answer Photo sensors
**3.4.0
Zone the work areas in large open spaces to allow the lighting in each zone to be controlled ___ - correct answer Independently
**3.4.0
Daylight harvesting uses photo sensors to measure daylight and automatically ___ the electric lighting when light levels are high - correct answer Dims or shuts off lighting [Show Less]