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How is the approach of velocity usually calculated?
17. How is the approach of velocity usually calculated?
- By measuring the fluid's density
- By using a Pitot tube
- By determining the fluid's specific gravity
- By calculating the fluid's viscosity
Answer: B) By using a Pitot tube
Explanation:
A Pitot tube is widely used to determine the velocity of the approach. It operates by aligning the open end of the tube with the fluid's velocity direction, allowing pressure measurements to be transformed into velocity values.