The effect of the decrease in pressure with the increase of the speed of the fluid in a horizontal pipe is known as______________?
Correct answer: C. Venturi effect
- A. Bernoulli effect
- B. Torricelli effect
- C. Venturi effect
- D. Stokes effect
Explanation
The Venturi effect is the decrease in fluid pressure that occurs when fluid speed increases in a narrower section of a horizontal passage, as described by Bernoulli's equation. The Torricelli effect concerns efflux speed from an opening, so it is the likely mistaken choice.
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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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