PPD - ARE 5.0 (NCARB) Exam | Verified Exam Questions and Answers |
Latest Updated Study Material 2026
Question:
1. Annalemma
Answer:
The figure 8 curve that represents the angular offset of the sun from its mean
position at as viewed from the earth
Question:
2. Balance Point
Temperature
Answer:
The outdoor temperature at which a building makes the transition from a heating
to a cooling need
Question:
3. Daylight autono- The percentage of an area that meets a minimum daylight illuminance level or
my
Answer:
specified fraction of the operating hours per year. also referred to as special
daylight autonomy
Question:
4. Daylight factor
Answer:
The ratio expressed as a percentage othe indoor aluminates at a point on a
horizontal surface to the unobstructed Exterior horizontal illuminance
Question:
5. Effective apera-
ture
Answer:
The product of visible transmittance and the window to wall ratio
,Question:
6. Equation of time The factor used to account for the difference between solar time and clock time.
Answer:
Solar time is based on the position of the sun. It's basic unit is the solar day
Question:
7. Glazing factor
Answer:
A LEED based number calculated by taking into account window area, floor area,
a window geometry factor, light transmission, and a window height factor.
Question:
8. Ground light
Answer:
Visible light from the sun and sky, reflected by exterior surfaces below the plane
of the horizon
Question:
9. Light shelf
Answer:
A horizontal element position above eye level and designed to reflect daylight on
the ceiling for improved daylighting effectiveness
Question:
10. Net metering
Answer:
The requirement that a utility pay and charge equal rates regardless of which way
electricity flows as a part of the utility Grid.
Question:
11. Radiation spec-
trum
Answer:
The entire range of electromagnetic radiation extending from 0 hz to 1023 hz. This
includes visible light as well as infrared radiation, radio waves, and gamma rays
among others
,Question:
12. Radiative cooling Passive or active design strategy that uses thermal mass to collect and store heat
Answer:
during the day for release at night. Also known as nocturnal cooling and night
cooled mass
Question:
13. Shading coeffi-
cient
Answer:
The ratio of the solar heat gain thru a glazing product to the solar heat gain
through an untreated 1/8 in clear double strength glass under the same set of
conditions. This is the value for the glass only, does not include the frame
Question:
14. Solar constant
Answer:
The amount of solar energy that falls in our unit time on her unit area that is
93,000,000 miles from the sun and orientated on a plane perpendicular to the
suns rays. The mean value of the solar constant is 433 btu/hr-ft
Question:
15. Solar heat gain
coefficient
Answer:
The ratio of the solar heat gain thru a fenestration to the total solar radiation
incident on the glazing.
Question:
16. Solar time
Answer:
The time as defined by the sun and it's position relative to the earth. Because the
length of the solar day varies most reference the mean solar day as a basis for
timekeeping.
, Question:
17. Solar savings
fraction
Answer:
The fraction of the total energy used by system that is provided by solar technol-
ogy. Represented by the variable F, it is a decimal fraction from 0 to 1
Question:
18. Visible light
transmittance
Answer:
The fraction of visible light that passes through a glazing material
Question:
19. Window to wall
ratio
Answer:
The ratio of the net glazing area in your room or space to the gross exterior wall
area
Question:
20. Work plane
Answer:
This assumed height at which work is performed usually considered to be at a
desk height, 30 inches above the floor
Question:
21. Co product
Answer:
A marketable byproduct from a process. Materials traditionally considered to be
waist but they can be repurposed as raw materials and a different manufacturing
process.
Question:
22. Demand control A system designed to adjust the amount of ventilation air provided to a space
ventilation
Latest Updated Study Material 2026
Question:
1. Annalemma
Answer:
The figure 8 curve that represents the angular offset of the sun from its mean
position at as viewed from the earth
Question:
2. Balance Point
Temperature
Answer:
The outdoor temperature at which a building makes the transition from a heating
to a cooling need
Question:
3. Daylight autono- The percentage of an area that meets a minimum daylight illuminance level or
my
Answer:
specified fraction of the operating hours per year. also referred to as special
daylight autonomy
Question:
4. Daylight factor
Answer:
The ratio expressed as a percentage othe indoor aluminates at a point on a
horizontal surface to the unobstructed Exterior horizontal illuminance
Question:
5. Effective apera-
ture
Answer:
The product of visible transmittance and the window to wall ratio
,Question:
6. Equation of time The factor used to account for the difference between solar time and clock time.
Answer:
Solar time is based on the position of the sun. It's basic unit is the solar day
Question:
7. Glazing factor
Answer:
A LEED based number calculated by taking into account window area, floor area,
a window geometry factor, light transmission, and a window height factor.
Question:
8. Ground light
Answer:
Visible light from the sun and sky, reflected by exterior surfaces below the plane
of the horizon
Question:
9. Light shelf
Answer:
A horizontal element position above eye level and designed to reflect daylight on
the ceiling for improved daylighting effectiveness
Question:
10. Net metering
Answer:
The requirement that a utility pay and charge equal rates regardless of which way
electricity flows as a part of the utility Grid.
Question:
11. Radiation spec-
trum
Answer:
The entire range of electromagnetic radiation extending from 0 hz to 1023 hz. This
includes visible light as well as infrared radiation, radio waves, and gamma rays
among others
,Question:
12. Radiative cooling Passive or active design strategy that uses thermal mass to collect and store heat
Answer:
during the day for release at night. Also known as nocturnal cooling and night
cooled mass
Question:
13. Shading coeffi-
cient
Answer:
The ratio of the solar heat gain thru a glazing product to the solar heat gain
through an untreated 1/8 in clear double strength glass under the same set of
conditions. This is the value for the glass only, does not include the frame
Question:
14. Solar constant
Answer:
The amount of solar energy that falls in our unit time on her unit area that is
93,000,000 miles from the sun and orientated on a plane perpendicular to the
suns rays. The mean value of the solar constant is 433 btu/hr-ft
Question:
15. Solar heat gain
coefficient
Answer:
The ratio of the solar heat gain thru a fenestration to the total solar radiation
incident on the glazing.
Question:
16. Solar time
Answer:
The time as defined by the sun and it's position relative to the earth. Because the
length of the solar day varies most reference the mean solar day as a basis for
timekeeping.
, Question:
17. Solar savings
fraction
Answer:
The fraction of the total energy used by system that is provided by solar technol-
ogy. Represented by the variable F, it is a decimal fraction from 0 to 1
Question:
18. Visible light
transmittance
Answer:
The fraction of visible light that passes through a glazing material
Question:
19. Window to wall
ratio
Answer:
The ratio of the net glazing area in your room or space to the gross exterior wall
area
Question:
20. Work plane
Answer:
This assumed height at which work is performed usually considered to be at a
desk height, 30 inches above the floor
Question:
21. Co product
Answer:
A marketable byproduct from a process. Materials traditionally considered to be
waist but they can be repurposed as raw materials and a different manufacturing
process.
Question:
22. Demand control A system designed to adjust the amount of ventilation air provided to a space
ventilation
