Virtual Labs

1. A venturimeter is primarily used to measure:

a: Pressure Explanation

Explanation

b: Discharge or flow rate Explanation

Explanation

c: Fluid density Explanation

Explanation

d: Viscosity Explanation

Explanation

2. Which principle forms the basis of operation of a venturimeter?

a: Pascal's law Explanation

Explanation

b: Newton's law of viscosity Explanation

Explanation

c: Archimedes' principle Explanation

Explanation

d: Bernoulli's theorem Explanation

Explanation

3. Which section of a venturimeter has the minimum cross-sectional area?

a: Inlet section Explanation

Explanation

b: Outlet section Explanation

Explanation

c: Throat section Explanation

Explanation

d: Diverging section Explanation

Explanation

4. In a venturimeter, the angle of the converging section is generally:

a: Greater than the angle of the diverging section Explanation

Explanation

b: Equal to the angle of the diverging section Explanation

Explanation

c: Less than the angle of the diverging section Explanation

Explanation

d: Zero Explanation

Explanation

5. Why is the diverging section of a venturimeter made longer than the converging section?

a: To increase turbulence Explanation

Explanation

b: To reduce pressure recovery Explanation

Explanation

c: To minimize energy loss due to flow separation Explanation

Explanation

d: To increase velocity Explanation

Explanation

6. Which quantity is experimentally determined to calculate the coefficient of discharge of a venturimeter?

a: Actual discharge Explanation

Explanation

b: Pipe roughness Explanation

Explanation

c: Atmospheric pressure Explanation

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d: Specific gravity of air Explanation

Explanation

7. The coefficient of discharge of a venturimeter is usually:

a: Greater than 1 Explanation

Explanation

b: Equal to 0 Explanation

Explanation

c: Equal to 1.5 Explanation

Explanation

d: Slightly less than 1 Explanation

Explanation

8. Which equation is used along with Bernoulli's theorem in deriving the discharge equation of a venturimeter?

a: Continuity equation Explanation

Explanation

b: Momentum equation Explanation

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c: Euler's equation Explanation

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d: Darcy-Weisbach equation Explanation

Explanation

9. Why is a venturimeter preferred over an orifice meter for accurate discharge measurement?

a: It causes larger head losses Explanation

Explanation

b: It has lower coefficient of discharge Explanation

Explanation

c: It produces smaller permanent head losses Explanation

Explanation

d: It eliminates pressure differences Explanation

Explanation

Venturi-Meter Experiment