Civil Engineering - Hydraulics

6. 

Which one of the following equation is applicable to unsteady flow in open channels :

A.
B.
C.
D.

Answer: Option D

Explanation:

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7. 

Dimensions of the dynamic viscosity (μ) are

A. MLT-2
B. M-1L-1T-1
C. ML-1T-2
D. ML-1T-1.

Answer: Option D

Explanation:

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8. 

To avoid vapourisation, pipe lines are laid over the ridge so that these are above the hydraulic gradient line, not more than

A. 2.4 m
B. 6.4 m
C. 10.0 m
D. 5.0 m.

Answer: Option B

Explanation:

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9. 

A jet projected at an angle of 45θ, 40 m from the foot of a vertical column, just reaches the top of the column. The height of the column is

A. 15 m
B. 20 m
C. 30 m
D. 40 m
E. 60 m.

Answer: Option D

Explanation:

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10. 

If Cv, Cc, Cd and Cr are the hydraulic coefficients of an orifice, then

A. Cd = Cc . Cv
B. Cr = 1 + Cv2/Cd
C. Cv = Cc + Cd
D. Cc = Cv/Cd

Answer: Option A

Explanation:

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