Mechanical Engineering - Hydraulics and Fluid Mechanics

6. 

The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy 's coefficient of friction for pipe, and l = Length of pipe )

A.
B.
C.
D.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

7. 

The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

A. Cd 2g x H
B. Cd 2g x H3/2
C. Cd 2g x H2
D. Cd 2g x H5/2

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

8. 

A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

A. equal to.
B. less than
C. more than

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

9. 

A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

A. wH
B. wH/2
C. wH2/2
D. wH2/3

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

10. 

An error of 1% in measuring head over the apex of the notch (H) will produce an error of __________ in discharge over a triangular notch.

A. 1%
B. 1.5%
C. 2%
D. 2.5%

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.