[GBR1] Green Building Residentialiner G1
Certification Review Guide
**Question 1.** Which phase of the Integrated Design Process (IDP) involves establishing
sustainability goals with the homeowner?
A) Concept design
B) Pre‑design
C) Construction documentation
D) Post‑occupancy evaluation
Answer: B
Explanation: The pre‑design phase is where the project team, including the homeowner, defines
overall sustainability objectives before detailed design begins.
**Question 2.** In a Life Cycle Assessment (LCA) for a residential building, which stage typically
has the highest embodied energy?
A) Use phase
B) Demolition phase
C) Construction phase
D) Material extraction phase
Answer: D
Explanation: Material extraction and processing (raw material stage) usually dominate
embodied energy because of mining, refining, and manufacturing processes.
**Question 3.** Which of the following best describes “first cost” in green building economics?
A) Total cost over the building’s lifespan
B) Initial capital expenditure for construction
C) Savings from reduced water use
D) Cost of maintenance during occupancy
Answer: B
, [GBR1] Green Building Residentialiner G1
Certification Review Guide
Explanation: First cost refers to the upfront capital required to construct the building, excluding
operational savings.
**Question 4.** The Energy Conservation Building Code for Residential (ECBC‑R) primarily
addresses which performance metric?
A) Water consumption per occupant
B) Indoor air quality
C) Energy use intensity (EUI)
D) Structural load capacity
Answer: C
Explanation: ECBC‑R sets limits on the energy use intensity of residential buildings to reduce
overall energy consumption.
**Question 5.** Which site selection criterion helps minimize disruption to agricultural
productivity?
A) Proximity to highways
B) Avoidance of prime agricultural land
C) Access to municipal water
D) Presence of existing utilities
Answer: B
Explanation: Selecting sites that do not encroach on prime agricultural land preserves food
production capacity.
**Question 6.** What is the primary purpose of sediment basins during construction?
A) To store construction equipment
B) To filter and retain eroded soil particles
, [GBR1] Green Building Residentialiner G1
Certification Review Guide
C) To provide temporary water supply
D) To improve site aesthetics
Answer: B
Explanation: Sediment basins capture runoff and allow suspended sediments to settle,
preventing off‑site soil loss.
**Question 7.** Preserving existing mature trees on a residential site primarily contributes to
which environmental benefit?
A) Increased roof load capacity
B) Reduced stormwater runoff
C) Higher indoor humidity
D) Faster construction schedule
Answer: B
Explanation: Mature trees intercept rainwater, reducing runoff volume and peak flow rates.
**Question 8.** High‑albedo roofing materials help mitigate the urban heat island effect by:
A) Absorbing more solar radiation
B) Reflecting a larger portion of solar radiation
C) Increasing roof insulation thickness
D) Enhancing natural ventilation
Answer: B
Explanation: High‑albedo surfaces reflect sunlight, lowering surface temperatures and
surrounding air temperature.
**Question 9.** Providing dedicated EV charging stations in a residential development
encourages:
, [GBR1] Green Building Residentialiner G1
Certification Review Guide
A) Higher electricity rates
B) Increased use of fossil‑fuel vehicles
C) Adoption of electric vehicles
D) Greater water consumption
Answer: C
Explanation: Accessible charging infrastructure reduces barriers to EV ownership, promoting
cleaner transportation.
**Question 10.** Ultra‑low‑flow fixtures typically achieve a flow rate of:
A) 2.5 gpm for faucets
B) 1.5 gpm for faucets
C) 0.5 gpm for faucets
D) 3.5 gpm for faucets
Answer: B
Explanation: Ultra‑low‑flow faucets are rated at ≤1.5 gpm, significantly reducing indoor water
use.
**Question 11.** Dual‑flush toilets reduce water consumption by:
A) Using the same volume for all flushes
B) Providing separate low‑volume and full‑volume flush options
C) Requiring manual water addition after each flush
D) Operating only on rainwater
Answer: B
Explanation: Dual‑flush toilets allow users to select a reduced volume for liquid waste and a
larger volume for solid waste.
Certification Review Guide
**Question 1.** Which phase of the Integrated Design Process (IDP) involves establishing
sustainability goals with the homeowner?
A) Concept design
B) Pre‑design
C) Construction documentation
D) Post‑occupancy evaluation
Answer: B
Explanation: The pre‑design phase is where the project team, including the homeowner, defines
overall sustainability objectives before detailed design begins.
**Question 2.** In a Life Cycle Assessment (LCA) for a residential building, which stage typically
has the highest embodied energy?
A) Use phase
B) Demolition phase
C) Construction phase
D) Material extraction phase
Answer: D
Explanation: Material extraction and processing (raw material stage) usually dominate
embodied energy because of mining, refining, and manufacturing processes.
**Question 3.** Which of the following best describes “first cost” in green building economics?
A) Total cost over the building’s lifespan
B) Initial capital expenditure for construction
C) Savings from reduced water use
D) Cost of maintenance during occupancy
Answer: B
, [GBR1] Green Building Residentialiner G1
Certification Review Guide
Explanation: First cost refers to the upfront capital required to construct the building, excluding
operational savings.
**Question 4.** The Energy Conservation Building Code for Residential (ECBC‑R) primarily
addresses which performance metric?
A) Water consumption per occupant
B) Indoor air quality
C) Energy use intensity (EUI)
D) Structural load capacity
Answer: C
Explanation: ECBC‑R sets limits on the energy use intensity of residential buildings to reduce
overall energy consumption.
**Question 5.** Which site selection criterion helps minimize disruption to agricultural
productivity?
A) Proximity to highways
B) Avoidance of prime agricultural land
C) Access to municipal water
D) Presence of existing utilities
Answer: B
Explanation: Selecting sites that do not encroach on prime agricultural land preserves food
production capacity.
**Question 6.** What is the primary purpose of sediment basins during construction?
A) To store construction equipment
B) To filter and retain eroded soil particles
, [GBR1] Green Building Residentialiner G1
Certification Review Guide
C) To provide temporary water supply
D) To improve site aesthetics
Answer: B
Explanation: Sediment basins capture runoff and allow suspended sediments to settle,
preventing off‑site soil loss.
**Question 7.** Preserving existing mature trees on a residential site primarily contributes to
which environmental benefit?
A) Increased roof load capacity
B) Reduced stormwater runoff
C) Higher indoor humidity
D) Faster construction schedule
Answer: B
Explanation: Mature trees intercept rainwater, reducing runoff volume and peak flow rates.
**Question 8.** High‑albedo roofing materials help mitigate the urban heat island effect by:
A) Absorbing more solar radiation
B) Reflecting a larger portion of solar radiation
C) Increasing roof insulation thickness
D) Enhancing natural ventilation
Answer: B
Explanation: High‑albedo surfaces reflect sunlight, lowering surface temperatures and
surrounding air temperature.
**Question 9.** Providing dedicated EV charging stations in a residential development
encourages:
, [GBR1] Green Building Residentialiner G1
Certification Review Guide
A) Higher electricity rates
B) Increased use of fossil‑fuel vehicles
C) Adoption of electric vehicles
D) Greater water consumption
Answer: C
Explanation: Accessible charging infrastructure reduces barriers to EV ownership, promoting
cleaner transportation.
**Question 10.** Ultra‑low‑flow fixtures typically achieve a flow rate of:
A) 2.5 gpm for faucets
B) 1.5 gpm for faucets
C) 0.5 gpm for faucets
D) 3.5 gpm for faucets
Answer: B
Explanation: Ultra‑low‑flow faucets are rated at ≤1.5 gpm, significantly reducing indoor water
use.
**Question 11.** Dual‑flush toilets reduce water consumption by:
A) Using the same volume for all flushes
B) Providing separate low‑volume and full‑volume flush options
C) Requiring manual water addition after each flush
D) Operating only on rainwater
Answer: B
Explanation: Dual‑flush toilets allow users to select a reduced volume for liquid waste and a
larger volume for solid waste.
