WELL AP Exam Final Questions &
Answers 2024/2025
elements necessary to execute Photocatalytic oxidation (PCO) - ANSWERSA combination of UV light rays
with TiO2-coated filter (Feature 23, Advanced Air Purification within the Air concept)
How large must a space be to require a Demand Controlled Ventilation measure? - ANSWERS500 sf with
occupant density greater than 25 people per 1,000 square feet
Largest environmental health risk in the world - ANSWERSAir pollution
Rod Cells - ANSWERSPhotosensitive cells in the eye used to discern peripheral vision in low levels of
illumination
Cone Cells - ANSWERSphotosensitive cells in the eye used to differentiate colors and brightness in
moderate and high levels of illumination.
Which of the following (5) must be monitored by Feature 18, Air Quality Monitoring and Feedback? -
ANSWERSOzone, Carbon Dioxide, Particle Count, Temperature, Humidity
Feature 64, Interior Fitness Circulation impacts these body systems. - ANSWERSMuscular, Cardiovascular,
Skeletal
What is required for recertification? - ANSWERSPerformance testing for all Features, old and new
What are the two parts to Feature 28, Cleanable Environment? - ANSWERSCleanability and Material
Properties
Feature 37, Drinking Water Promotion set limits to? - ANSWERSDissolved Minerals
,What feature would most likely help to minimize moisture in HVAC equipment? - ANSWERSFeature 14,
Air Infiltration Management
How many premature deaths worldwide does air pollution contribute to per year? -
ANSWERSApproximately 7 million, 1 in 8
Which of following Features requires employers to offer each employee a self-monitoring device for
his/her personal use that accurately measures and tracks biomarkers associated with occupant health
and wellness, including, but not limited to, heart rate variability, sleep quality and duration, activity
levels, and body mass? - ANSWERSFeature 94, Self-Monitoring
What Feature addresses Cold Storage - ANSWERSFeature 42, Food Contamination
What does Feature 93, Workplace Family Support address? - ANSWERSParental Leave, Employee
Supported Child Care, and Family Support.
Feature 72, ADA Accessible Design Standards impacts which two bodily systems? - ANSWERSSkeletal and
Muscular
Definition of Candela - ANSWERSMeasurement of luminous intensity and the SI base unit of light
Feature 99, Beauty and Design II impacts which of the following bodily systems? - ANSWERSNervous
What do R9 values take into consideration - ANSWERSHow we perceive warmer hues (red light)
Which of the following is required for Construction Pollution Management? - ANSWERSFilter
Replacement prior to occupancy, Duct Protection, Moisture Absorption Management, Walk-off mats
used at entryways to contain dust
Which word is used to describe different WELL project types? - ANSWERSWELL Typologies
What percentage of adults worldwide (ages 20 and over) is considered overweight? - ANSWERS40%
,Which of the following Features addresses Healthy Sunlight Exposure? - ANSWERSFeature 62, Daylight
Modeling
Noise Reduction Coefficient - ANSWERSThe noise reduction coefficient is an average value that
determines the absorptive properties of materials. The larger the NRC value, the better the material is at
absorbing sound under standardized conditions.
What does the acronym LRV stand for? - ANSWERSLight Reflectance Values
Which type of cells are critical to the circadian system, sending information to various parts of the brain
to trigger reactions downstream in the body, with peak sensitivity to teal-blue light? -
ANSWERSPhotosensitive retinal ganglion cells (ipRGCs)
What does ipRGCs stand for - ANSWERSIntrinsically Photosensitive retinal ganglion cells
Under Feature 81, Sound Barriers, what is required for wall construction specifications? -
ANSWERSEnclosed offices minimum NIC of 40 when no sound masking system is used , Conference
rooms, minimum NIC of 53 for walls adjoining private offices, Enclosed offices minimum NIC of 35 when
a sound masking system is present
Reverberation time - ANSWERSThe length of time it takes for a sound to decay by 60 dB from its original
level?
Which of the following Features includes a requirement for precautionary material selection? -
ANSWERSFeature 26, Enhanced Material Safety
In order to comply with the Health Benefits part of Feature 92, Building Health Policy, how many of the
cited benefits must employers provide? - ANSWERS3 benefits
What strategy would be of most help with mitigating air pollution from highly traveled roads and
manufacturing plants? - ANSWERSCarbon Filters
, Which of the following can remove dissolved metals from drinking water? - ANSWERSReverse osmosis
systems, Kinetic Degradation Fluxion (KDF) filters
What are technologies prescribed by Feature 36, Water Treatment that are designed to maintain high
water quality through the provisioning of various precautionary filtration and sterilization processes? -
ANSWERSCarbon filters, Sediment filters, UV sanitization (irrespective of variations to the water supply )
6 major air pollutants - ANSWERSCarbon Monoxide, Lead, Nitrogen Dioxide, Ozone, Particulate Matter,
Sulfur Dioxide
What hormone plays a primary role in stress, increases blood sugar, suppresses the immune system and
aids in protein, fat and carbohydrate metabolism while also undergoing diurnal variation, playing an
important role in the sleep-wake cycle? - ANSWERSCortisol
Ceiling height and artwork is a part of Feature _____ - ANSWERSFeature 99, Beauty and Design II?
What are disinfectant byproducts of chlorine and chloramine? - ANSWERStrihalomethanes (THMs) and
haloacetic acids (HAAs)
What percentage of American adults (ages 20 and over) are considered overweight? - ANSWERS69%
In order to comply with the Charitable Activities part of Feature 96, Altruism, how many of hours of paid
time, as organized by the employer for a registered charity twice a year, is required? - ANSWERS8 hours
___ angle should computer screens at desks located within ____ of view windows be perpendicularly
oriented to the plane of the nearest window? - ANSWERS20°, 4.5 meters or 15 feet
What are parts for Feature 51, Food Production? - ANSWERSGardening Space, Planting Support
An increase in relative humidity of 35% can increase the emissions of formaldehyde by which of the
following factors? - ANSWERS1.8-2.6
