WELL AP Certification Exam
Questions with Correct Verified
Answers Latest Update (2024/2025)
Guaranteed Pass
The bodies, feces, and saliva of dust mites can trigger what? - ANS
✓Asthma and allergic reactions
What documentation is required for Feature 23 Advanced Air
Purification? - ANS ✓Parts 1 & 2 Carbon Filtration and Air Sanitization =
LOA from MEP Engineer & Spot Check
Part 3 Air Quality Maintenance = Operations Schedule
What has 210x the binding affinity for haemoglobin compared to
oxygen? - ANS ✓Carbon Monoxide
What is a lack of oxygen delivery to body tissues? - ANS ✓Hypoxia
What effects can hypoxia cause? - ANS ✓nausea, altered LOC, death
What does short wavelength UV light (UV-C) do? - ANS ✓It can reduce
the bacterial load on surfaces.
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Turbidity - ANS ✓The cloudiness or haziness of a fluid caused by large
numbers of individual particles that are generally invisible to the naked
eye, similar to smoke in air. The measurement of turbidity is a key test of
water quality
Removing turbidity improves water how? - ANS ✓By also removing
harmful pathogens such as protozoa.
The presence of coliforms in water suggests what? - ANS ✓That the
water may contain more dangerous pathogens, including: bacteria, viruses,
and protozoa.
How does exposure to waterborne pathogens such as bacteria,
viruses, and protozoa affect human health? - ANS ✓Exposure can lead
to adverse gastrointestinal effects such as diarrhea, vomiting, nausea, and
cramps.
What 2 types of water filters can remove dissolved metals? - ANS
✓Reverse Osmosis (RO)
Kinetic Degradation Fluxion (KDF)
Exposure to even minute amounts of mercury and lead has been
linked to what? - ANS ✓Developmental delays & deficits in learning
abilities in children
High BP & kidney problems in adults
Activated carbon filters are effective in removing what from water? -
ANS ✓Polychlorinated biphenyls (PCBs)
Benzene
Styrene
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other organic contaminants & VOCs
Exposure to organic contaminants such as PCBs and vinyl chloride in
drinking water has been associated with what ailments? - ANS
✓Cancer
Immune deficiencies
Nervous system difficulties
Fluorosis - ANS ✓Aesthetic mottling of teeth caused by excessive exposure
to fluorine compounds.
What are Chlorine and Chloramine? - ANS ✓Compounds that may be
added to water to act as disinfectants and can lead to the formation of
disinfectant byproduct such as trihalomethanes (THMs), haloacetic acids
(HAAs), as well as N-nitrosodimethylamine (NDMA) which can cause
cancer.
What affects the rate at which inorganic metals leach into drinking
water sources? - ANS ✓1. Changing industrial practices
2. Temporal variations in temperature
3. pH
4. Weather
What 3 technologies are used to maintain high water quality? - ANS
✓1. Carbon filters
2. Sediment filters
3. UV sanitisation
WELL AP Certification
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