Virtual Labs

1. In a venturimeter, where does the maximum fluid velocity occur?

a: At the inlet section Explanation

Explanation

b: At the throat section Explanation

Explanation

c: At the outlet section Explanation

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d: In the diverging section Explanation

Explanation

2. The pressure at the throat section of a venturimeter is:

a: Maximum Explanation

Explanation

b: Equal to atmospheric pressure Explanation

Explanation

c: Minimum Explanation

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d: Independent of velocity Explanation

Explanation

3. The coefficient of discharge of a venturimeter is defined as:

a: Ratio of theoretical discharge to actual discharge Explanation

Explanation

b: Ratio of actual discharge to theoretical discharge Explanation

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c: Ratio of pressure head to velocity head Explanation

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d: Ratio of throat area to pipe area Explanation

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4. Actual discharge through a venturimeter is experimentally determined by:

a: Measuring collected volume over a known time interval Explanation

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b: Using Bernoulli's equation alone Explanation

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c: Measuring pipe roughness Explanation

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d: Using atmospheric pressure Explanation

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5. A venturimeter experiences lower permanent head loss than an orifice meter because of its:

a: Smaller throat area Explanation

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b: Smooth converging and diverging sections Explanation

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c: Large pressure difference Explanation

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d: Short outlet section Explanation

Explanation

6. Which instrument is commonly connected to a venturimeter to measure pressure difference?

a: Pitot tube Explanation

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b: Barometer Explanation

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c: Differential manometer Explanation

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d: Hydrometer Explanation

Explanation

7. If the pressure difference between the inlet and throat increases, the discharge through the venturimeter will generally:

a: Decrease Explanation

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b: Become zero Explanation

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c: Remain constant Explanation

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d: Increase Explanation

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8. Which of the following assumptions is commonly made while deriving the theoretical discharge equation for a venturimeter?

a: Flow is unsteady and compressible Explanation

Explanation

b: Viscous losses are dominant Explanation

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c: Fluid density changes continuously Explanation

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d: Flow is steady and incompressible Explanation

Explanation

9. For a given pressure difference, increasing the throat area of a venturimeter will generally:

a: Increase the discharge Explanation

Explanation

b: Reduce the coefficient of discharge to zero Explanation

Explanation

c: Make pressure equal at all sections Explanation

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d: Eliminate energy losses Explanation

Explanation

Venturi-Meter Experiment