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Consider the figure shown below:-



Reason for the aspiration effect is the:-

  • a)
    different velocity at 2 and 3

  • b)
    same velocity at 2 and 3

  • c)
    same velocity at 1 and 3

  • d)
    there will be no aspiration effect.

Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the figure shown below:-Reason for the aspiration effect isth...
The aspiration effect, also known as the Venturi effect, occurs when a fluid flows through a narrowed section of a pipe, causing a reduction in fluid pressure that results in a suction or aspiration effect. This phenomenon is commonly observed in fluid dynamics and is applied in various devices like carburetors and aspirators.


Based on the figure provided and the principle of the Venturi effect, if the cross-sectional area at point 2 is less than at points 1 and 3, the velocity of the fluid at point 2 would be greater than at points 1 and 3 due to the conservation of mass in a steady, incompressible flow. This is described by the equation of continuity, which states that the product of cross-sectional area and velocity is constant along a streamline.


Given that point 2 is a narrowed section compared to points 1 and 3, the velocity at point 2 would be different (and greater) than at point 3. This difference in velocity results in a pressure difference, which is the reason for the aspiration effect.


Therefore, the reason for the aspiration effect is:


2. different velocity at 2 and 3
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Consider the figure shown below:-Reason for the aspiration effect isth...
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Consider the figure shown below:-Reason for the aspiration effect isth...
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