Velocity of fluid increases where the pressure is________________?
Correct answer: A. Low
- A. Low
- B. High
- C. Constant
- D. Changes continuously
Explanation
For steady flow along a streamline, Bernoulli's equation shows that higher fluid speed corresponds to lower static pressure when the other terms are unchanged. The likely mistake is choosing high pressure by applying the usual static-fluid idea instead of the moving-fluid relation.
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About Bernoulli's Equation
Bernoulli’s equation applies conservation of energy to steady flow of an incompressible, non-viscous fluid along a streamline: pressure, kinetic and gravitational terms have a constant total. It explains pressure-speed changes in narrow pipes, Venturi meters and lift, and differs from continuity because it relates pressure as well as velocity and height.
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