Mechanical Engineering - Hydraulics and Fluid Mechanics

21. 

The Francis formula for the discharge over Cippoletti weir is

A. 1.84 LH1/2
B. 1.84 LH
C. 1.84 LH3/2
D. 1.84 LH5/2

Answer: Option C

Explanation:

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22. 

Laminar flow __________ place at very low velocities.

A. takes
B. does not take

Answer: Option A

Explanation:

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23. 

A manometer can be used to measure vacuum pressures.

A. Agree
B. disagree

Answer: Option A

Explanation:

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24. 

The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by

A.
B.
C.
D.

Answer: Option D

Explanation:

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25. 

The tendency of a liquid to uplift a submerged body, because of the upward thrust of the liquid, is known as buoyancy.

A. Agree
B. Disagree

Answer: Option A

Explanation:

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