Venturimeter: velocity at the throat versus at the inlet In a venturimeter working under full-bore flow, compare the fluid velocity at the throat with the velocity at the inlet. Choose the correct relation.
Mechanical Engineering
Hydraulics and Fluid Mechanics
Difficulty: Easy
Choose an option
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AVelocity at the throat is greater than at the inlet
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BVelocity at the throat is lower than at the inlet
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CVelocity at the throat equals the inlet velocity
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DCannot be compared without density data
Answer
Correct Answer: Velocity at the throat is greater than at the inlet
Explanation
Concept/ApproachFrom continuity, Q = A V = constant. Because the throat area is smaller than the inlet area, the velocity must increase at the throat to maintain the same discharge.
Final AnswerVelocity at the throat is greater than at the inlet