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WELL AP Exam > Comfort Concept > Flashcards

Comfort Concept Flashcards

1
Q

How many features in Comfort?

A 
12 features (#72-83)
5 preconditions (72-76)
7 Optimizations (77-83)
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2
Q

How many American have Lower back pain?

A

31 million

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3
Q

Leading source of dissatisfaction with office conditions?

A

acoustic problems

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4
Q

How many people worldwide have Lower back pain?

A

7% of population

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5
Q

Total # of days of work missed due to MSDs (musculoskeletal disorders) - back pain, neck pain, osteoarthritis, carpal tunnel etc.

A

380,600 days

makes up 1/3 of total days absent

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6
Q

Thermal comfort - only ___% of buildings met occupant satisfaction

A

11%

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7
Q

73 - Ergonomics (prerequisite)
all computer screens are adjustable plus,
___% of workstations change from sit to stand, and chair height and seat depth are adjustable and compliant with ____.

A

30%

HFES 100 or BIFMA G1

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8
Q

74 - Exterior Noise Intrusion

traffic noise increases risk for 4 things ___.

A

diabetes
stroke
heart attack
hypertension

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9
Q

74 - Exterior Noise Intrusion

Within 1 hour of normal business hours sound intrusion does not exceed ___dBA

A

50 dBA

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10
Q

How is Exterior Noise Verified?

A

Well Assessor does a Performance Test

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11
Q

75 - Internally Generated Noise

Accoustic Plan identifies ___ and ___.

A

loud and quiet zones
and
noisy equipment

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12
Q 
Noise Criteria - max noise from HVAC in spaces:
Teleconference rooms\_\_\_
Conference Rooms\_\_\_
Enclosed Offices\_\_\_
Open Offices \_\_\_\_
A 
Noise Criteria - max noise in spaces:
Teleconference rooms - 20 NC
Conference Rooms - 30 NC
Enclosed Offices - 35 NC
Open Offices - 40 NC
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13
Q

76 - Thermal Comfort Part 1

Mechanically ventilated projects must meet criteria under ____.

A

ASHRAE 55-2013 section 5.3

Standard Comfort Zone compliance

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14
Q

76 - Thermal Comfort Part 2

Naturally ventilated projects must meet criteria under ____.

A

ASHRAE 55-2013 section 5.4

Adaptive Comfort Model

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15
Q

What is Homeothermy?

A

balancing of heat gain and loss to regulate core temp between 97-100

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16
Q

77 - Olfactory Comfort (keep interiors odorless)
Source separation - all restrooms, janitorial closets, kitchens, cafeterias and pantries use these 5 methods to keep odors from migrating:

A
  1. negative pressurization
  2. interstitial rooms
  3. vestibules
  4. hallways
  5. self-closing doors
17
Q

Source separation is applicable to which WELL feature?

A
  1. Olfactory Comfort
18
Q

What is Negative Pressurization? When the total CFM from supply air is ___(greater than or less than) return air, the room is under positive pressure and the air will flow out.

A

greater

19
Q
  1. Reverberation time - RT60 is ___
A

the time it takes for sound level to decrease 60 dB

20
Q

Sound-absorbing materials are used to reduce sound reverberation to ____seconds in open workspaces and ___ seconds in conference rooms

A
  1. 5 seconds in open workspaces and

0. 6 seconds in conference rooms

21
Q

79 - sound masking (white noise)
speakers emit low-level background noise so sounds is measured at
____dBA in open workspaces and
___ dBA in enclosed offices

A

45-48 dBA in open workspaces and

40-42 dBA in enclosed offices

22
Q

80 - Sound Reducing Surfaces (acoustical panels - Ceilings)
____NRC in open workspaces and
___ NRC in enclosed offices

A

Ceilings:

  1. 9+ NRC entire surface in open workspaces and
  2. 8+ NRC 50% of ceiling in enclosed offices
23
Q

80 - Sound Reducing Surfaces (acoustical panels - Walls)
____NRC in open workspaces/enclosed offices/conference rooms and
___ NRC in cubicles/partitioned spaces

A

Walls:

  1. 8+ NRC on 25%+ walls in open workspaces and
  2. 8+ NRC at least 48” high in cubicles
24
Q

What is NRC?

Is a higher or lower number better?

A

Noise Reduction Coefficient - measures absorptive properties - the higher the number the better it can absorb sound

25
Q

81 - Sound Barriers - reducing noise from adjacent spaces
What is a NIC?
Higher or lower?

A

Noise Isolation Class - Higher numbers = better sound insulation

26
Q

81 - Sound Barriers part 1 - wall specs

___ NIC Enclosed offices w/ sound masking, or ___w/o sound masking

A

35 NIC with; 40 NIC without

27
Q

81 - Sound Barriers part 1 - wall specs

___ NIC Teleconference Rooms

A

53 NIC min

28
Q

82 - Individual Thermal Comfort (free address)

projects over ___ SF allow ___% free address, which provides for __ degree gradient across space

A

2,150 SF
at least 50% free address
5 degrees

29
Q

82 - Individual Thermal Comfort (fans & heaters)

employees have access to fans and heaters when there are more than ___ workstations in same heating/cooling zone.

A

10

30
Q

83 - Radiant Heat

what are the 4 benefits?

A
  1. saved floor space
  2. lower dust
  3. increased thermal comfort thru separation of controls from outdoor air
  4. higher winter humidity
31
Q

83 - Radiant Heat which spaces are covered?

what standard?

A

Lobbies/Common areas - 100%
Offices - 50%
ASHRAE 55-2013

WELL AP Exam (8 decks)

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