Topic: Fluid Mechanics
Chances of occurrence of cavitation are high if the
- A. Local pressure becomes very high
- B. Local pressure falls below the vapour pressure
- C. Thoma cavitation parameter exceeds a certain limit
- D. Local temperature becomes low
Answer: B. Local pressure falls below the vapour pressure
Explanation: Cavitation means a process in which the liquid's static pressure falls below its vapour pressure. That creates small vapour filled cavities in the liquid, known as 'bubbles' or 'voids'.