The Purpose of Differential Pressure Bypass Valves (DPBV) Is to ____

question 14

Multiple Choice

The purpose of differential pressure bypass valves (DPBV) is to ____ the differential pressure imposed on the distribution system by a fixed-speed circulator as the system flow rate decreases due to closing zone valves.

• A) accelerate
• B) equalize
• C) limit
• D) increase

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Definitions:

Rubisco

The common name of ribulose bisphosphate carboxylase/oxygenase, the enzyme that catalyzes the fixation of carbon dioxide in the Calvin cycle.

PGA

The term PGA could refer to multiple concepts depending on context; if related to biology, it often stands for Phosphoglyceric acid, a 3-carbon molecule formed in the Calvin cycle of photosynthesis.

Light Compensation Point

The light intensity level at which the rate of photosynthesis equals the rate of respiration, leading to no net gain of energy by the plant.

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize foods with carbon dioxide and water, producing oxygen as a byproduct.