Questions and CORRECT Answers
A new office building adjacent to a highway is designed to prevent the traffic noise from
distracting building occupants. What should the maximum allowable average sound pressure
level from outside noise intrusion be? - CORRECT ANSWER - 50 dBA
There are how many primary personal and environmental variables that contribute to an
occupant's thermal comfort? - CORRECT ANSWER - 6 (air speed, dry bulb temperature,
radiant temperature, humidity, metabolic rate and clothing or other insulation)
What is the maximum reverberation time (RT60) for a conference room? - CORRECT
ANSWER - 0.6 seconds
Which of the following design strategies are NOT used to enhance thermal comfort: Apply
adaptive thermal comfort model; Occupant control at workspace; Behavioral/move where
occupant desires; or Wardrobe selection of occupant? - CORRECT ANSWER - Wardrobe
selection of occupant
An existing office workspace has installed a white noise system to help reduce distractions and
increase speech privacy. Which WELL Feature would the space achieve? - CORRECT
ANSWER - Feature 79 Sound Masking
Studies show that individuals exposed to traffic noise have a higher risk for which two health
problems? - CORRECT ANSWER - Diabetes, stroke, and heart attack
What percentage of workstations must have the ability to alternate between sitting and standing
positions to meet the requirement for the ergonomic section of the WELL Building Standard? -
CORRECT ANSWER - 30% for ergonomics (60% for total occupants/fitness)
Reverberation time, or RT60, is a metric which describes the length of time taken for a sound to
decay from its original level by which of the following? - CORRECT ANSWER - 60db
, What best describes sound pressure level (SPL)? - CORRECT ANSWER - Pressure
variation associated with sound waves and is measured in decibels.
According to WELL Building Standard having good acoustic comfort promotes which four
items? - CORRECT ANSWER - Enhance social interaction, learning, satisfaction, and
productivity
Thermal comfort can most affect these three items: performance, productivity, and what? -
CORRECT ANSWER - Mood
A company leasing one floor in a 14-story building purchased new adjustable height chairs and
desks that can go from sitting to standing. What else must the company purchase to meet Feature
73 Ergonomics, Visual and Physical? - CORRECT ANSWER - Computer screens that
adjust in height and distance from the user
In 2006, how many of the office buildings surveyed in the U.S. provided thermal environments
that met generally accepted goals of occupant satisfaction? - CORRECT ANSWER - 11%
Thermal comfort, olfactory comfort, sound masking, sound barrier, individual thermal control,
and radiant thermal comfort when used can all help improve which of the following? -
CORRECT ANSWER - Immune System
What is the most common cause reported for employee's acoustic dissatisfaction in an open
office? - CORRECT ANSWER - Overhearing private conversations
Strong odors can be kept from migrating to workspaces by using negative pressurization,
interstitial rooms, hallways, self-closing doors, and what other strategy? - CORRECT
ANSWER - Vestibules
What is the leading source of dissatisfaction within the environmental conditions of an office? -
CORRECT ANSWER - Acoustic problems