Tough Flashcards
The wavelengths of visible light range from roughly 400 nm to ___ nm.
700
Luminous flux
The total luminous output of a light source, measured in lumens and weighted to the visual sensitivity of the human eye.
___ glazing is glazing that is below 2.1 m (7’) and designed to allow building occupants clear views of the outside.
Vision
Equivalent melanopic lux (EML)
A measure of light that is used to quantify how much a light source will stimulate the light response of melanopsin.
A family of fluorine-containing chemicals with unique properties to make materials stain- and stick-resistant.
Perfluorinated compounds (PFCs)
A radioactive, carcinogenic noble gas generated from the decay of natural deposits of uranium
Radon
A former commercially produced synthetic organic chemical compound that may be present in products and materials produced before the 1979
Polychlorinated biphenyl (PCB)
A group of brominated hydrocarbons that are used as flame retardants for plastics, foams, furniture and furnishings, textiles, and other household products.
Polybrominated diphenyl ethers (PBDEs)
An index that features a comparison of the appearance of 8 to 14 colors under a light source in comparison to a blackbody source of the same color temperature
Color rendering index (CRI)
The two types of displacement ventilation systems are ___.
Low sidewall air distribution systems & Underfloor air distribution (UFAD) systems
Noise reduction coefficient (NRC)
The average value that determines the absorptive properties of materials.
A(n) ___ filter is a water filter that contains flakes or granules of a copper-and-zinc alloy.
Kinetic degradation fluxion (KDF)
The color rendering index average (CRI Ra) is a value on a scale of 1 to ___ based on reference colors R1 through R8.
100
According to Part 2: Walls of Feature 80, open work spaces must have a minimum NRC of 0.8 for at least ___% of the surface area of the surrounding walls.
25
MERV A
value assigned to an air filter that describes the amount of different types of particles removed when the filter is operating at the least effective point in its life.
Annual sunlight exposure (ASE)
A percentage of space in which the light level from direct sun alone exceeds a predefined threshold for some quantity of hours in a year.
Dedicated outdoor air system (DOAS)
An HVAC system that provides 100% outside air directly to a building’s zones for ventilation purposes.
Noise isolation class (NIC)
A field test for determining the sound transmitting abilities of a wall.
Daylight glazing
Glazing that is specifically designed and located to allow for deeper penetration of daylight into the interior spaces of a building.
Visible transmittance (VT)
The amount of light in the visible portion of the spectrum (roughly 400 nm to 700 nm) that passes through a glazing material. VT is measured as a percentage or number from 0 to 1.
Noise criteria (NC) is the sound pressure limits of the octave band spectra ranging from 63 Hz to ___ Hz.
8000
Sound
Energy composed of pressure waves, or vibrations, that travel through the air or another material and produce an audible signal when they reach a person’s ear.
Sound pressure level
The pressure variation associated with sound waves, usually measured in decibels (dB). Also known as acoustic pressure.
Electromagnetic spectrum
The range of all types of electromagnetic radiation.
Spatial daylight autonomy (sDA)
A percentage of floor space in which a minimum light level can be met completely for some proportion of regular operating hours by natural light.
Photocatalytic oxidation system
An air sanitation system that uses a UV light along with a catalyst, usually titanium dioxide, to break down contaminants in the air stream.
Sound transmission class (STC)
A laboratory method for determining sound transmission through a wall.
Variable opacity glazing
Glazing that has the ability to control the amount of light passing through it. Also known as smart glass.
Light reflectance value (LRV)
A rating of how much usable light is reflected or absorbed by a given surface, with values ranging from 0 (0%) to 1 (100%).
Urea-formaldehyde
resin that is used in the wood product industry.
Luminaire
A complete lighting unit that includes the components that distribute light, position and protect the lamps, and provide connection to the power supply.
Formaldehyde
A colorless gas compound that is used for manufacturing melamine and phenolic resins, fertilizers, dyes, and embalming fluids.
Psychrometric chart
A graphical representation of the properties of air at various conditions.
Ozone (O3)
hazardous to the respiratory system at ground level.
Illuminance
The amount of light incident on a given surface measured in lux or footcandles.
Luminance
A measurement of how bright a surface or light source will appear to the eye, measured in candela per square meter (cd/m2) or footlamberts.
Noise criteria (NC)
The sound pressure limits of the octave band spectra ranging from 63 Hz to 8000 Hz.
Psychrometrics
The mathematical and graphical study of the properties of air.
Correlated color temperature (CCT)
The spectral distribution of electromagnetic radiation of a blackbody at a given temperature, measured in degrees Kelvin (K).
To optimize quantity and quality of daylight while minimizing unwanted glare and thermal heat gain, what is the ideal range for window-wall ratio as measured on external elevations?
20% to 60%
What verification methods are required to demonstrate that Feature 54 Circadian Lighting Design has been achieved? (2)
Letter of assurance from the Architect
on-site spot measurement by the WELL Assessor
In order to meet the requirements of Feature 80 Sound Reducing Surfaces in open office areas, ceiling materials must meet what NRC values?
0.9, for the total ceiling surface area excluding lights, skylights, diffusers, and grilles
how many global deaths are attributed to an inadequate consumption of fruits and vegetables?
2.7 million deaths
What is the maximum level of carbon dioxide for all spaces with an actual or expected occupant density greater than 25 people per 93 m2 allowed by Feature 03 Ventilation Effectiveness?
800 ppm
According to Feature 58 Color Quality, conditions should electric lights meet for acceptable color quality?
CRI Ra (CRI, average of R1 through R8) must be 80 or higher
When sound masking systems are used in open office spaces, sound levels must fall within which range? (nearest workspace)
45-48 dBA
Studies show that individuals exposed to traffic noise have a higher risk for which health problems? (3)
Diabetes, stroke and heart attack
According to Responsible Food Production, ______ percent of produce and _______ percent of meat, egg and dairy products must be Federally Certified Organic or Humane Certified.
100%; 100%
Carbon filters remove what (2)
volatile pollutants
ozone
Enhanced Material Safety addresses which building standards? (3)
Living Building Challenge
Cradle to Cradle
GreenScreen
which of the following represents the wavelength for green-blue versus green-yellow light?
Green-yellow = 555 nm
green-blue = 498 nm
teal-blue light = 480 nm
Rods facilitate what type of vision?
peripheral
dim lighting
green-blue
Cones facilitate what type of vision?
daytime
color
green-yellow
What are ipRGCs and what type of vision?
Intrinsically Photosensitive Retinal Ganglion Cells
see light over long-term
used in circadian system
teal blue
- Electric Light Glare - lamp shielding reqs: (4)
a) under 20k = no shielding
b) 20k = 15 degrees
c) 50k = 20 degrees
d) 500k + = 30 degrees
58 - Color Quality (all electric light bulbs) To accurately poirtrat colors, all electric lights should meet the following (2): (CRI)
CRIs of colors R1 through R8 must be 80 or higher
CRI of R9 must be 50 or higher.
59 - Surface Design (reflective quality) what are the Light Relfectance Value (LRV) limits for: Ceilings, wall, furniture?
Ceilings - LRV 0.8 for 80% of surface
Walls - LRV 0.7 for 50%
Furniture - LRV 0.5 for 50%
Which building standard is referenced with respect to VOC reduction in furniture & furnishings?
ANSI/BIFMA
The maximum reverberation time for conference rooms is ______ and for open offices is ________. (sec)
0.6 seconds; 0.5 seconds
cubicle style office walls must meet which of the following criteria? (2; in/NRC)
Partitions reach at least 1.2 m (48 in)
have a minimum NRC of 0.8
The Core and Shell Compliance typology requires a minimum of ___ of the total floor area is occupied by of the building owner and is operated by the same management.
25%
Under Feature 81, Sound Barriers, enclosed offices must meet a minimum STC of _____ when no sound masking system is present; conference rooms must meet a minimum STC of ______ on walls adjoining private offices and conference rooms.
45; 53
Use of a radiant temperature system enhances thermal comfort by separating ______.
Separating the ventilation systems from the heating and cooling elements
Light (K) range that has greatest positive effect on the body’s circadian cycle, if they are all equal visual brightness?
Lights with a temperature range between 5000K and 6500K have the greatest affect on the body’s circadian cycle
What are the requirements regarding Lease Depth with respect to WELL?
75% of regularly occupied areas must be within 25 feet of a view window
What is the minimum visual transmittance (VT) for glazing located below 2.1 m (7 ft) or lower from the floor?
50%
Feature 62, Daylight Modeling, sets limits on inappropriately high levels of daylight, requiring that annual sunlight exposure is achieved for no more than
10% of regularly occupied space.
MERV addresses what kind of particles
small
What is the standard limit for VOCs in furniture and furnishings that will satisfy the requirements for Feature 04, VOC Reduction?
95% (by cost) of ANSI/BIFMA e3-2011
definition of a candela (cd)?
Measurement of luminous intensity and the SI base unit of light
personal and environmental variables contribute to an occupant’s thermal comfort? (6)
Air speed, Dry bulb temperature, Radiant temperature, Humidity, Metabolic rate, Clothing
Which of the following contaminants, naturally occurring or inadvertently introduced into water, can pose serious health threats? (5)
LAGAM Lead, Arsenic, Glyphosate, Atrazine, Microbes
Water composes how much of the human body?
2/3
Feature 19, Operable Windows requires which of the following to be monitored? (4)
HOT PM
Humidity, Ozone, Temperature, PM10
Under Feature 89, Adaptable Space, areas greater than 1,860 m2 (20,000 ft2) must provide a designated quiet space that meets which of the following NRC requirements?
(NC) from mechanical systems is 30 or lower.
Noise Criteria (NC) from mechanical systems is 30 or lower. (2)
UV light rays
TiO2-coated filter
Which Feature addresses Healthy Sunlight Exposure?
daylight modeling
Feature 95, Stress and Addiction Treatment affects which of the following bodily systems? (3)
cardiovascular,
digestive,
endocrine systems
Feature 79. Sound Masking impacts which of the following bodily systems? (2)
nervous
Immune
Under Feature 81, Sound Barriers, what is required for wall construction specifications? (3 STC conditions)
Conference rooms and teleconference rooms: minimum STC of 53
Enclosed offices: minimum STC of 45 w/sound masking
Enclosed offices: minimum STC of 40
Feature 63, Daylighting Fenestration covers (2)
Window Size and Transmittance
Uniform Color Transmittance
defines Dry Bulb Temperature (DBT)?
Temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture, without accounting for humidity
What components are part of Feature 73, Ergonomics: Visual and Physical? (3)
Visual Ergonomics,
Desk Height Flexibility,
Seat Flexibility.
Which is a requirement for internally generated noise from mechanical equipment? (3 NC)
Open office spaces and lobbies NC of 40
Closed offices NC 35,
Conference rooms NC 30
Which of the following represents the definition of a Health Product Declaration (HPD)?
A standard format for reporting product content and associated health information for building products and materials
Feature 56, Solar Glare Control requires which of the following? (2)
Daylight Management
View Window Shading
In order to comply with the Material Information part of Feature 97, Material Transparency, what percentage of interior finishes and finish materials, furnishings (including workstations) and built-in furniture must have some combination of qualifying material descriptions?
50%
Define metamers?
Different spectral distributions of light which produce the same response on the cones and are therefore visually identical
Which of the following are a part of Feature 89, Adaptable Spaces? (4)
Stimuli Management,
Privacy,
Space Management,
Workplace Sleep Support.
