Hydraulics and Fluid Mechanics in ME When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as Broad-crested weir Submerged weir Narrow-crested weir Ogee weir Broad-crested weir Submerged weir Narrow-crested weir Ogee weir ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity, One-fourth One-half Double Three-fourth One-fourth One-half Double Three-fourth ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by dQ/Q = (dH/H) dQ/Q = (1/2) × (dH/H) dQ/Q = (3/4) × (dH/H) dQ/Q = (3/2) × (dH/H) dQ/Q = (dH/H) dQ/Q = (1/2) × (dH/H) dQ/Q = (3/4) × (dH/H) dQ/Q = (3/2) × (dH/H) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as center of buoyancy center of pressure center of gravity metacentre center of buoyancy center of pressure center of gravity metacentre ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME 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) (2/3) Cd × L.√2g [H12 - Ha2] (2/3) Cd × L. √2g [H13/2 - Ha3/2] (2/3) Cd × L. √2g [H15/2 - Ha5/2] (2/3) Cd × L.√2g [H1 - Ha] (2/3) Cd × L.√2g [H12 - Ha2] (2/3) Cd × L. √2g [H13/2 - Ha3/2] (2/3) Cd × L. √2g [H15/2 - Ha5/2] (2/3) Cd × L.√2g [H1 - Ha] ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called Principle of flotation Archimedes’s principle Pascal’s law Bernoulli’s theorem Principle of flotation Archimedes’s principle Pascal’s law Bernoulli’s theorem ANSWER DOWNLOAD EXAMIANS APP
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