Identify the incorrect statement regarding cavitation.

Explanation

Option A is incorrect because cavitation is indeed caused by a sudden pressure drop due to flow separation, vortex formation, or rapid valve closure. Option B correctly states that cavitation results from liquid boiling when pressure decreases, forming vapor cavities. Option C accurately notes that cavitation starts at higher static pressure and lower velocity in larger diameter pipes, often producing noise. Option D is false because significant cavitation can damage pipelines, restrict fluid flow, and harm steam turbine blades.