Home

What is the correct answer?

4

The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

A. (2/3) Cd × L.√2g [H1 - Ha]

B. (2/3) Cd × L. √2g [H1 3/2 - Ha 3/2]

C. (2/3) Cd × L.√2g [H1 2 - Ha 2]

D. (2/3) Cd × L. √2g [H1 5/2 - Ha 5/2]

Correct Answer :

B. (2/3) Cd × L. √2g [H1 3/2 - Ha 3/2]


Related Questions

The discharge through an external mouthpiece is given by (where a = Cross-sectional… An open tank containing liquid is moving with an acceleration on an inclined… For a body floating in a liquid the normal pressure exerted by the liquid… The line of action of the buoyant force acts through the Centroid of the The pressure in the air space above an oil (sp. gr. 0.8) surface in a… The point at which the resultant pressure on an immersed surface acts,… A flow through an expanding tube at constant rate is called Which of the following instruments is used to measure flow on the application… The tendency of a liquid surface to contract is due to the following property A manometer is used to measure A differential manometer is used to measure The velocity corresponding to Reynold number of 2800, is called The unit of surface tension is An error of 1% in measuring head over the crest of the notch (H) will… The discharge through a channel of circular section will be maximum when… The resultant upward pressure of a fluid on a floating body is equal to… The flow in which the particles of a fluid attain such velocities that… Operation of McLeod gauge used for low pressure measurement is based on… When the flow in an open channel is gradually varied, the flow is said… The conditions for the stable equilibrium of a floating body are A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight… For a perfect incompressible liquid, flowing in a continuous stream, the… One poise is equal to In a free nappe, The ratio of specific weight of a liquid to the specific weight of pure… The viscosity of water at 20°C is The liquid used in manometers should have A fluid which obeys the Newton's law of viscosity is termed as The velocity of the liquid flowing through the divergent portion of a… At the center line of a pipe flowing under pressure where the velocity…