Hydraulics and Fluid Mechanics in ME The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe) 0.707 R 0.423 R 0.223 R 0.577 R 0.707 R 0.423 R 0.223 R 0.577 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The ratio of actual work available at the turbine to the energy imparted to the wheel is known as ________ efficiency. Mechanical None of these Overall Hydraulic Mechanical None of these Overall Hydraulic ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s) w × Q × H w × Q × hf w × Q (H - hf) w × Q (H + hf) w × Q × H w × Q × hf w × Q (H - hf) w × Q (H + hf) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to bring the liquid level from H1 to H2 will be 2A × √H₂/Cd × a × √(2g) 2A × (√H3/2 - √H3/2)/Cd × a × √(2g) 2A × (√H₁ - √H₂)/Cd × a × √(2g) 2A × √H₁/Cd × a × √(2g) 2A × √H₂/Cd × a × √(2g) 2A × (√H3/2 - √H3/2)/Cd × a × √(2g) 2A × (√H₁ - √H₂)/Cd × a × √(2g) 2A × √H₁/Cd × a × √(2g) 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 × bH2 × √(2gh) Q = Cd × bH × √(2gh) Q = Cd × b (H2 - H1) × √(2gh) Q = Cd × bH₁ × √(2gh) Q = Cd × bH2 × √(2gh) Q = Cd × bH × √(2gh) Q = Cd × b (H2 - H1) × √(2gh) Q = Cd × bH₁ × √(2gh) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The discharge through a reaction turbine ___ with the increase in unit speed. Remain same Decreases None of the listed here Increases Remain same Decreases None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
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