LEED AP Building Design and Construction (BD+C) Practice Exam

Which of the following is NOT a component of ASHRAE 90.1?

1. Building envelope

2. Chilled water systems

3. Power

4. Lighting

The correct answer is: Chilled water systems

The correct response is based on understanding the scope and components outlined in the ASHRAE 90.1 standard, which is primarily focused on energy efficiency in buildings. ASHRAE 90.1 includes guidelines related to various building systems and components that directly affect energy consumption, such as the building envelope, lighting systems, and power which refers to electrical energy used in a building. These components are integral to implementing effective energy conservation measures. Chilled water systems, while relevant to HVAC design and energy performance, are not explicitly categorized as a standalone component of ASHRAE 90.1. Instead, the standard addresses broader categories that encompass HVAC strategies, but it does not specifically define "chilled water systems" as a component. Thus, it is reasonable to identify that chilled water systems fall outside the primary components enumerated in the standard, making it the correct choice for the question regarding which is NOT a component of ASHRAE 90.1. Understanding these distinctions is crucial for anyone preparing for the LEED AP BD+C exam, as it emphasizes the importance of knowing how building systems are treated within established energy efficiency standards.