Hydraulics and Fluid Mechanics in ME In reaction turbine, draft tube is used To increase flow rate For safety of turbine To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section To transport water downstream without eddies To increase flow rate For safety of turbine To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section To transport water downstream without eddies ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is 1.84(L - nH)H2 1.84(L - nH)H3 1.84(L - 0.1nH)H3/2 1.84(L - 0.1nH)H5/2 1.84(L - nH)H2 1.84(L - nH)H3 1.84(L - 0.1nH)H3/2 1.84(L - 0.1nH)H5/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity. IG / Ax̅ above IG / Ax̅ below Ax̅ / IG above Ax̅ / IG below IG / Ax̅ above IG / Ax̅ below Ax̅ / IG above Ax̅ / IG below ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The power developed by a turbine is (where H = Head of water under which the turbine is working) Inversely proportional to H1/2 Directly proportional to H1/2 Directly proportional to H3/2 Inversely proportional to H3/2 Inversely proportional to H1/2 Directly proportional to H1/2 Directly proportional to H3/2 Inversely proportional to H3/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta) H × √(2g) 2g × √H 2gH √(2gh) H × √(2g) 2g × √H 2gH √(2gh) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A weir, generally, used as a spillway of a dam is Ogee weir Broad crested weir Narrow crested weir Submerged weir Ogee weir Broad crested weir Narrow crested weir Submerged weir ANSWER DOWNLOAD EXAMIANS APP
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