Mechanical Engineering - Hydraulics and Fluid Mechanics

6. 

The coefficient of venturifiume, generally, lies between

A. 0.3 to 0.45
B. 0.50 to 0.75
C. 0.75 to 0.95
D. 0.95 to 1.0

Answer: Option D

Explanation:

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7. 

Venturimeter is used to

A. measure the velocity of a flowing liquid
B. measure the pressure of a flowing liquid
C. measure the discharge of liquid flowing in a pipe
D. measure the pressure difference of liquid flowing between two points in a pipe line

Answer: Option C

Explanation:

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8. 

A hemispherical tank of radius (R) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to lower the level of liquid from (H1) to (H2) will be

A.
B.
C.
D. none of the above

Answer: Option C

Explanation:

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9. 

A flow is called super-sonic if the

A. velocity of flow is very high
B. discharge is difficult to measure
C. Mach number is between 1and 6
D. none of these

Answer: Option C

Explanation:

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10. 

The force present in a moving liquid is

A. inertia force
B. viscous force
C. gravity force
D. all of these

Answer: Option D

Explanation:

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