Increasing the duct static pressure ______ the volume of air delivered by a fan.
A. increases B. decreases C. has no effect
A. increases
Increasing the duct static pressure generally increases the volume of air delivered by a fan, as it allows the fan to push more air through the duct system. However, it's important to consider that there are limits to this effect, and other factors such as fan performance curves and system resistance also play a role.