The velocity at which the turbulent flow starts is known as higher critical velo

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Question
The velocity at which the turbulent flow starts is known as higher critical velocity.
Options
A. Yes
B. No

Correct Answer

Yes

Hydraulics and Fluid Mechanics problems

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4. According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions)
Options
A. Cd(L - nH)2gH
B. Cd(L - 0.1nH)2gH^3/2
C. Cd(L - nH)2gH²
D. Cd(L - 0.2nH)2gH^5/2

5. Venturimeter is used to
Options
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

7. The discharge through a channel of rectangular section will be maximum, if
Options
A. its depth is twice the breadth
B. its breadth is twice the depth
C. its depth is thrice the breadth
D. its breadth is thrice the depth

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

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