NFPA - CORRECT ANSWER- National Fire Protection Association
ASHRAE - CORRECT ANSWER- American Society of Heating, Refrigeration and Air
Conditioning Engineers
EEMs - CORRECT ANSWER- Energy Efficiency Measures
What are the 3 types of metering schemes? - CORRECT ANSWER- Master Metered, Direct
Metered, Sub-Metered
IESNA - CORRECT ANSWER- Illuminating Engineering Society of North America
Lamp - CORRECT ANSWER- A generic term for a source created to produce optical
radiation.
Lumens - CORRECT ANSWER- Technically "luminous flux". The amount of light that a
bulb produces. It is a unit of output.
Initial Lumens - CORRECT ANSWER- Lumens measured before depreciation occurs.
Mean Lumens - CORRECT ANSWER- The lumen output that lamp is statistically likely to
output at 40% of the lamps rated life.
, Foot Candles - CORRECT ANSWER- Units of light density striking a surface. One
footcandle is defined as one lumen distributed uniformly over one square foot.
Efficacy - CORRECT ANSWER- The efficiency of the lamp, expressed in Lumens per watt
(LPW). It is the ratio of the total light (lumen) output over the total energy (watt) input.
CCT - CORRECT ANSWER- Correlated Color Temperature
CRI - CORRECT ANSWER- Color Rendering Index
Ballast - CORRECT ANSWER- A device used with a discharge lamp to provide the
necessary circuit conditions (voltage, current, and waveform) to start and operate the lamp.
Luminaires - CORRECT ANSWER- A complete lighting unit consisting of: lamps, ballast (if
applicable), as well as parts designed to: distribute light, position the lamp, protect the lamp,
and connect the lamp to the power supply.
Luminaire Efficiency - CORRECT ANSWER- The ratio of luminous flux emitted by a
luminair over that emitted by the lamp (or lamps) contained in the fixture.
Using T12 as an example, what does the number following the T indicate? - CORRECT
ANSWER- The number following the T indicates the diameter in 1/8ths of an inch.
HID Lamp - CORRECT ANSWER- High Intensity Discharge Lamp
What are 4 types of HID lamps? - CORRECT ANSWER- Mercury Vapor, Metal Halide, Low
Pressure Sodium, High Pressure Sodium.
LED - CORRECT ANSWER- Light Emitting Diodes
What is a process load? - CORRECT ANSWER- Any non-lighting, non-resident, non-space
conditioning use, such as elevators, common area cooking, commercial loads, snow-melt, etc.
DHW - CORRECT ANSWER- Domestic Hot Water
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