ARE 5.0 PPD EXAM QUESTIONS AND ANSWERS LATEST UPDATE 2025 ALREADY PASSED
Sheet Flow - Answers Runoff across sloped surface. 1.5% minimum slope.
Sewer Piping Slope - Answers 0.5% to 2% slope depending on pipe size. 2.5" diameter or less 1/4 in/ft, 3"
to 6" is 1/8 in/ft, 8" or more 1/16 in/ft.
Sewer Invert - Answers Lowest elevation of public sewer. Must tap in building line above this.
Road Slopes - Answers 10% max preferred. 15% for short spans with transitions between slope changes
so cars don't bottom out.
Road Crown - Answers Highest point in center of road shedding 1/4 in/ft toward 6" curbs.
Site Stair - Answers 4" to 6" rise, 14"+ run.
Standard Parking Space - Answers 9' x 19'
Compact Parking Space - Answers 7'6" x 15'
SF per car - Answers 400 sf includes parking stall, % of aisle, landscaping. Refined based on local laws.
Parking Drainage Slope - Answers 1.5% to 5%. 2% to 3% common.
Sun Declination Angle - Answers 23.4 degrees
Passive Solar Gain - Answers Heat gain via sun warming up mass during day and convecting into space at
night.
Active Solar Gain - Answers Uses passive strategies combined with mechanical systems to distribute
through building.
Open Loop Active Solar Gain - Answers Water is heated directly in solar collector and distributed.
Closed Loop Active Solar Gain - Answers Antifreeze or other transfer medium is heated in collector, sent
to heat exchanger to extract heat, extracted heat warms water that is distributed.
Leeward Side - Answers Direction wind blowing from.
Windward Side - Answers Direction wind blowing to.
Green Roof on Concrete Slab - Answers Waterproofing > Root Barrier > Rigid Insulation > Drainage Layer
> Filter Fabric > Growth Medium > Plants
Green Rood on Metal Deck - Answers Thermal Barrier > Rigid Insulation > Waterproofing > Root Barrier
> Drainage Layer > Filter Fabric > Growth Medium > Plants
, SHGC - Answers Solar Heat again Coefficient. Solar radiation transmitted through assembly ranging from
0 to 1. 0 allows most transmittance.
SC - Answers Shading Coefficient. Supersedes SHGC. Solar radiation through glazing only ranging from 0
to 1. 0 allows most transmittance.
LEED stands for - Answers Leadership in Energy and Environmental Design
Catchment Area - Answers Roof Area divided by Footprint for Collection.
Calc: Roof Area 10,000sf. Annual rainfall of 20in. 25% lost to evaporation/runoff/etc. What is annual
collected rainfall total? - Answers ((10,000sf)(20in)(1yr))(0.75)(0.6 conversion to gal)= 90,000 gal to be
used in building.
Heat Exchanger - Answers Extracts embodied heat from water to be reused as heat for HVAC system.
Acidification - Answers Water lowers pH of surrounding waterways or soil. Neutral pH is 7.
Eutrophication - Answers Excessive nutrients in water promotes algae growth that blocks sunlight, no
sunlight depletes oxygen level in water and kills aquatic life.
Sustainability Programs - Answers Collaborative for High Performance Schools (CHPS), Energy Star,
Green Globes, LEED, National Green Building Standard (NGBS), WELL.
ASHRAE 90.1 - Answers Energy Standard for Buildings except Low-Rose Residential
ASTM E119 - Answers Defines standard for testing building assemblies.
NFPA 252 and 257 - Answers Defines standard for testing doors and glazing, respectively.
Fire Partition - Answers Wall assembly with 1hr rating to separate apartments, hotel rooms, patient
rooms, retail stores in mall, etc.
Fire Barrier - Answers Vertical and/or horizontal assembly resisting fire for safe egress.
Fire Wall - Answers Separate single structure into multiple occupancies. One side must be able to
collapse without effecting other.
ASTM E84 - Answers Regulates rating of single layers of finish materials.
A Occupancy - Answers Assembly. Places where people temporarily gather together.....Theater,
restaurants, bars, library, museum, arena, stadium, etc.
B Occupancy - Answers Business. Offices, banks, educational above 12th.
E Occupany - Answers Education. Schools up to 12th.
F Occupancy - Answers Factory and low hazard.
Sheet Flow - Answers Runoff across sloped surface. 1.5% minimum slope.
Sewer Piping Slope - Answers 0.5% to 2% slope depending on pipe size. 2.5" diameter or less 1/4 in/ft, 3"
to 6" is 1/8 in/ft, 8" or more 1/16 in/ft.
Sewer Invert - Answers Lowest elevation of public sewer. Must tap in building line above this.
Road Slopes - Answers 10% max preferred. 15% for short spans with transitions between slope changes
so cars don't bottom out.
Road Crown - Answers Highest point in center of road shedding 1/4 in/ft toward 6" curbs.
Site Stair - Answers 4" to 6" rise, 14"+ run.
Standard Parking Space - Answers 9' x 19'
Compact Parking Space - Answers 7'6" x 15'
SF per car - Answers 400 sf includes parking stall, % of aisle, landscaping. Refined based on local laws.
Parking Drainage Slope - Answers 1.5% to 5%. 2% to 3% common.
Sun Declination Angle - Answers 23.4 degrees
Passive Solar Gain - Answers Heat gain via sun warming up mass during day and convecting into space at
night.
Active Solar Gain - Answers Uses passive strategies combined with mechanical systems to distribute
through building.
Open Loop Active Solar Gain - Answers Water is heated directly in solar collector and distributed.
Closed Loop Active Solar Gain - Answers Antifreeze or other transfer medium is heated in collector, sent
to heat exchanger to extract heat, extracted heat warms water that is distributed.
Leeward Side - Answers Direction wind blowing from.
Windward Side - Answers Direction wind blowing to.
Green Roof on Concrete Slab - Answers Waterproofing > Root Barrier > Rigid Insulation > Drainage Layer
> Filter Fabric > Growth Medium > Plants
Green Rood on Metal Deck - Answers Thermal Barrier > Rigid Insulation > Waterproofing > Root Barrier
> Drainage Layer > Filter Fabric > Growth Medium > Plants
, SHGC - Answers Solar Heat again Coefficient. Solar radiation transmitted through assembly ranging from
0 to 1. 0 allows most transmittance.
SC - Answers Shading Coefficient. Supersedes SHGC. Solar radiation through glazing only ranging from 0
to 1. 0 allows most transmittance.
LEED stands for - Answers Leadership in Energy and Environmental Design
Catchment Area - Answers Roof Area divided by Footprint for Collection.
Calc: Roof Area 10,000sf. Annual rainfall of 20in. 25% lost to evaporation/runoff/etc. What is annual
collected rainfall total? - Answers ((10,000sf)(20in)(1yr))(0.75)(0.6 conversion to gal)= 90,000 gal to be
used in building.
Heat Exchanger - Answers Extracts embodied heat from water to be reused as heat for HVAC system.
Acidification - Answers Water lowers pH of surrounding waterways or soil. Neutral pH is 7.
Eutrophication - Answers Excessive nutrients in water promotes algae growth that blocks sunlight, no
sunlight depletes oxygen level in water and kills aquatic life.
Sustainability Programs - Answers Collaborative for High Performance Schools (CHPS), Energy Star,
Green Globes, LEED, National Green Building Standard (NGBS), WELL.
ASHRAE 90.1 - Answers Energy Standard for Buildings except Low-Rose Residential
ASTM E119 - Answers Defines standard for testing building assemblies.
NFPA 252 and 257 - Answers Defines standard for testing doors and glazing, respectively.
Fire Partition - Answers Wall assembly with 1hr rating to separate apartments, hotel rooms, patient
rooms, retail stores in mall, etc.
Fire Barrier - Answers Vertical and/or horizontal assembly resisting fire for safe egress.
Fire Wall - Answers Separate single structure into multiple occupancies. One side must be able to
collapse without effecting other.
ASTM E84 - Answers Regulates rating of single layers of finish materials.
A Occupancy - Answers Assembly. Places where people temporarily gather together.....Theater,
restaurants, bars, library, museum, arena, stadium, etc.
B Occupancy - Answers Business. Offices, banks, educational above 12th.
E Occupany - Answers Education. Schools up to 12th.
F Occupancy - Answers Factory and low hazard.
