Hydraulics and Fluid Mechanics in ME If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is V1² / (V1² - V2²) (V1² - V2²) / V1² V1 / (V1 - V2) (V1 - V2) / V1 V1² / (V1² - V2²) (V1² - V2²) / V1² V1 / (V1 - V2) (V1 - V2) / V1 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 Kinematic similarity is said to exist between the model and the prototype, if both of them Are identical in shape, but differ only in size Have identical velocities Have identical forces Are equal in size and shape Are identical in shape, but differ only in size Have identical velocities Have identical forces Are equal in size and shape ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is 0.0116 stoke 0.611 stoke 0.0611 stoke 0.116 stoke 0.0116 stoke 0.611 stoke 0.0611 stoke 0.116 stoke ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME For laminar flow in circular pipes, the Darcy’s friction factor f is equal to 32/ Re 16/Re 64/ Re None of these 32/ Re 16/Re 64/ Re None of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Viscosity of water in comparison to mercury is Same Lower Higher/lower depending on temperature Higher Same Lower Higher/lower depending on temperature Higher ANSWER DOWNLOAD EXAMIANS APP
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