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 Ogee weir Narrow-crested weir Broad-crested weir Submerged weir Ogee weir Narrow-crested weir Broad-crested weir Submerged weir ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a channel of trapezoidal section is maximum when Width of channel at the top is equal to twice the width at the bottom The sloping side is equal to half the width at the top The sloping side is equal to the width at the bottom Depth of channel is equal to the width at the bottom Width of channel at the top is equal to twice the width at the bottom The sloping side is equal to half the width at the top The sloping side is equal to the width at the bottom Depth of channel is equal to the width at the bottom ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be Could be any value Maximum Zero Minimum Could be any value Maximum Zero Minimum ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Hydraulic accumulator is used for Supplying large quantities of oil for very short duration Supplying energy when main supply fails Generally high pressures to operate hydraulic machines Accumulating oil Supplying large quantities of oil for very short duration Supplying energy when main supply fails Generally high pressures to operate hydraulic machines Accumulating oil 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 [H15/2 - Ha5/2] (2/3) Cd × L. √2g [H13/2 - Ha3/2] (2/3) Cd × L.√2g [H1 - Ha] (2/3) Cd × L.√2g [H12 - Ha2] (2/3) Cd × L. √2g [H15/2 - Ha5/2] (2/3) Cd × L. √2g [H13/2 - Ha3/2] (2/3) Cd × L.√2g [H1 - Ha] ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In reaction turbine, draft tube is used To increase flow rate To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section To transport water downstream without eddies For safety of turbine To increase flow rate To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section To transport water downstream without eddies For safety of turbine ANSWER DOWNLOAD EXAMIANS APP
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