QUESTION: 9

Increasing which of the following variables will require an increase in the outdoor airflow rate under Indoor Environmental Quality Prerequisite, Minimum Indoor Air Quality Performance?

Supply air velocity
Number of occupants
System ventilation efficiency
Supply air temperature set point

Answer(s): B

Explanation:

The outdoor airflow rate is the amount of outdoor air that is supplied to the building by the ventilation system to dilute indoor air pollutants and provide fresh air for the occupants. The outdoor airflow rate depends on the ventilation standard that the project follows, which can be either ASHRAE 62.1-2010 or CEN Standard EN 15251-20071. Both standards specify the minimum outdoor airflow rate per person and per unit area for different occupancy types and zones. Therefore, increasing the number of occupants will require an increase in the outdoor airflow rate to maintain the minimum ventilation level. The other variables, such as supply air velocity, system ventilation efficiency, and supply air temperature set point, do not directly affect the outdoor airflow rate,
although they may influence the energy consumption and thermal comfort of the ventilation system.

Reference:

LEED Reference Guide for Building Design and Construction v4 Minimum Indoor Air Quality Performance
Ventilation for Acceptable Indoor Air Quality - ASHRAE Indoor environmental input parameters for design and assessment of ... - CEN

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QUESTION: 10

Which of the following innovation proposals is most likely to be successful to achieve an Innovation Credit?

Providing an educational program on the environmental and human health benefits of green building practices
Including locked, indoor bicycle storage for 100% of project occupants
Being located next to a 20 mi. (32 km) award-winning bicycle trail
Distributing leaflets to project occupants about available public transit services nearby

Answer(s): A

Explanation:

Providing an educational program on the environmental and human health benefits of green building practices is a potential innovation strategy that is not addressed by any existing LEED credit. It also meets the criteria of being measurable, replicable, and having a positive impact on the project and the environment.

Reference:

LEED v4 BD+C Reference Guide, Innovation Category, INc1: Innovation, Option 1.
Innovation (1 point), page 704.

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QUESTION: 11

What standard should an engineer use when establishing minimum ventilation rates for a new mechanically ventilated space to earn Indoor Environmental Quality, Minimum Indoor Air Quality Performance?

Local building code
ASHRAE 62.1-2010
International Mechanical Code 2012
The ventilation code requiring the greatest volume of outside air

Answer(s): B

Explanation:

ASHRAE 62.1-2010 is the standard that an engineer should use when establishing minimum ventilation rates for a new mechanically ventilated space to earn Indoor Environmental Quality,
Minimum Indoor Air Quality Performance. This is the standard referenced by the LEED v4 BD+C Reference Guide for this prerequisite. Local building code, International Mechanical Code 2012, and the ventilation code requiring the greatest volume of outside air are not acceptable alternatives for this prerequisite.

Reference:

LEED v4 BD+C Reference Guide, Indoor Environmental Quality Category, EQp Minimum Indoor Air Quality Performance, page 674.

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QUESTION: 12

Under Energy and Atmosphere Prerequisite, Fundamental Commissioning and Verification, a current facilities requirements and operations and maintenance plan must contain which information necessary to operate the building efficiently?

Any changes in schedules or setpoints for different seasons, days of the week, and times of day
Only changes in schedules or setpoints for peak usages during seasons, days of the week, and times of day
Any changes in schedules during peak times, or for different seasons, peak-usage days of the week, and times of day
Any changes in schedules or setpoints focusing on only the hottest and coldest periods of the seasons, peak-use days of the week, and times of day

Answer(s): A

Explanation:

A current facilities requirements and operations and maintenance plan must contain any changes in schedules or setpoints for different seasons, days of the week, and times of day. This is to ensure that the building systems are operating efficiently and according to the design intent. The other options are too limited or too specific and do not cover all the possible variations in schedules or setpoints.

Reference:

LEED v4 BD+C Reference Guide, Energy and Atmosphere Category, EAp Fundamental Commissioning and Verification, page 569.

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QUESTION: 9

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QUESTION: 11

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QUESTION: 12

Explanation:

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