Hydraulics and Fluid Mechanics in ME If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be h/w wh h w/h h/w wh h w/h ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a wholly drowned orifice is given by (where H1 = Height of water (on the upstream side) above the top of the orifice, H2 = Height of water (on the downstream side) above the bottom of the orifice, and H = Difference between two water levels on either side of the orifice) Q = Cd × bH₁ × √(2gh) Q = Cd × b (H2 - H1) × √(2gh) Q = Cd × bH2 × √(2gh) Q = Cd × bH × √(2gh) Q = Cd × bH₁ × √(2gh) Q = Cd × b (H2 - H1) × √(2gh) Q = Cd × bH2 × √(2gh) Q = Cd × bH × √(2gh) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring a definite B.H.P., the same pump when handling a liquid of specific gravity 0.75 and viscosity nearly same as of water , the horse power required will be 0.75 B.H.P H.P./0.75 Same 1.5 B.H.P 0.75 B.H.P H.P./0.75 Same 1.5 B.H.P ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific weight of water in S.I. units is taken as 9.81 kN/m3 9.81 × 10-6 N/mm3 Any one of these 9.81 × 103 N/m3 9.81 kN/m3 9.81 × 10-6 N/mm3 Any one of these 9.81 × 103 N/m3 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Which of the following statement is correct as regard to water wheels? They have slow speeds They are suitable even for low water heads They give constant efficiency, even if the discharge is not constant All of these They have slow speeds They are suitable even for low water heads They give constant efficiency, even if the discharge is not constant All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to Buoyancy Archimedes’ principle Bernoulli’s theorem Equilibrium of a floating body Buoyancy Archimedes’ principle Bernoulli’s theorem Equilibrium of a floating body ANSWER DOWNLOAD EXAMIANS APP
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