Air- Preconditions

Question 1

___ ventilation is the movement of air into and out of a space primarily through intentionally provided openings (such as windows and doors), through nonpowered ventilators, or by infiltration.

Answer 1

Natural

Question 2

__ of Feature 01, Air Quality Standards, addresses the levels of formaldehyde and volatile organic compounds (VOCs) in the air.

Answer 2

Part 1: Standards for Volatile Substances

Question 3

___ is a colorless, odorless, and highly poisonous gas formed by incomplete combustion.

Answer 3

Carbon monoxide

Question 4

___ of Feature 03 requires that all HVAC systems (within the last five years) undergo testing and balancing after the substantial completion, but before occupancy, of a project.

Answer 4

Part 3: System Balancing

Question 5

The two types of filters addressed in Feature ___, Air Filtration, are carbon filters and media filters.

Answer 5

05

Question 6

Part 2: Mold Inspections of Feature ___, Microbe and Mold Control, requires that a mold inspection be performed by the WELL assessor.

Answer 6

06

Question 7

The goal of ___, is to reduce the amount of materials, products, and finishes used in building construction that can release VOCs into the interior of the building.

Answer 7

Feature 04, VOC Reduction

Question 8

___ is a naturally occurring mineral that was commonly used in insulation because of its chemical and flame resistance, tensile strength, and sound absorption properties.

Answer 8

Asbestos

Question 9

___ into the interior of a building can cause structural damage, mold growth, and negative effects on indoor air quality.

Answer 9

Moisture infiltration

Question 10

___ of Feature 12, Moisture Management, requires the development of a narrative describing the use of moisture-tolerant materials and the protection of moisture-sensitive materials.

Answer 10

Part 4: Material Selection and Protection

Question 11

A chemical that is used to destroy, repel, or control plants or animals.

Answer 11

Pesticide

Question 12

Particulate matter 2.5 µm or smaller in diameter.

Answer 12

Fine particle (PM2.5)

Question 13

A former commercially produced synthetic organic chemical compound that may be present in products and materials produced before the 1979 PCB ban.

Answer 13

Polychlorinated biphenyl (PCB)

Question 14

A set of symptoms, such as headaches, fatigue, eye irritation, and breathing difficulties, believed to be caused by indoor pollutants and poor environmental control that typically affects workers in modern airtight office buildings.

Answer 14

Sick building syndrome (SBS)

Question 15

An infectious biological agent such as a bacterium, virus, or fungus that is capable of causing disease in its host.

Answer 15

Pathogen

Question 16

The triatomic form of oxygen that is hazardous to the respiratory system at ground level.

Answer 16

Ozone (O3)

Question 17

A material containing carbon and hydrogen that evaporates and diffuses easily at ambient temperature and is emitted by a wide array of building materials, paints, wood preservatives, and other common consumer products.

Answer 17

Volatile organic compound (VOC)

Question 18

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.

Answer 18

Minimum efficiency reporting value (MERV)

Question 19

Particulate matter larger than 2.5 micrometers (µm) and smaller than 10 µm in diameter.

Answer 19

Coarse particle (PM10)

Question 20

A surface that is frequently touched by building users and occupants, including door handles, light switches, telephones, tabletops, and plumbing fixture handles.

Answer 20

High-touch surface

Question 21

A complex mixture of elemental and organic carbon, salts, mineral and metal dust, ammonia, and water that coagulate together into tiny solids and globules.

Answer 21

Particulate matter

Question 22

Ventilation provided by mechanically powered equipment, such as motor-driven fans and blowers, but not by devices such as wind-driven turbine ventilators and mechanically operated windows.

Answer 22

Mechanical ventilation

Question 23

A naturally occurring poisonous metal element that can be found in the earth’s surface.

Answer 23

Mercury

Question 24

A surface that is infrequently touched by building users and occupants, including floors, walls, window sills, mirrors, and light fixtures

Answer 24

Low-touch surface

Question 25

A radioactive, carcinogenic noble gas generated from the decay of natural deposits of uranium

Answer 25

Radon

Question 26

A naturally occurring metal found deep within the ground that was used in plumbing fixtures, lighting fixtures, and recycled building products.

Answer 26

Lead

Question 27

A sterilization method that uses UV light to break down microorganisms by destroying their DNA.

Answer 27

Ultraviolet germicidal irradiation (UVGI)

Question 28

The release of chemicals or particulates into the air from substances and solvents used in the manufacture of a building product.

Answer 28

Off-gassing

Question 29

A colorless gas compound that is used for manufacturing melamine and phenolic resins, fertilizers, dyes, and embalming fluids.

Answer 29

Formaldehyde