Hydraulics and Fluid Mechanics in ME The cavitation in reaction turbines is avoided, to a great extent by Providing highly polished blades to the runner All of these Using stainless steel runner of the turbine Installing the turbine below the tail race level Providing highly polished blades to the runner All of these Using stainless steel runner of the turbine Installing the turbine below the tail race level ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by H = Hg × hf H = Hg + hf H = Hg/hf H = Hg - hf H = Hg × hf H = Hg + hf H = Hg/hf H = Hg - hf ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A flow in which __________ force is dominating over the viscosity is called turbulent flow. Viscous Elastic Surface tension Inertia Viscous Elastic Surface tension Inertia 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 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 0.75 B.H.P ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The torque required to overcome viscous resistance of a collar bearing is (where R1 and R2 = External and internal radius of collar) (μπ²N/60t) × (R₁² - R₂²) (μπ²N/60t) × (R₁⁴ - R₂⁴) (μπ²N/60t) × (R₁ - R₂) μπ²N/60t) × (R₁³ - R₂³) (μπ²N/60t) × (R₁² - R₂²) (μπ²N/60t) × (R₁⁴ - R₂⁴) (μπ²N/60t) × (R₁ - R₂) μπ²N/60t) × (R₁³ - R₂³) 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 None of these 64/ Re 16/Re 32/ Re None of these 64/ Re 16/Re 32/ Re ANSWER DOWNLOAD EXAMIANS APP
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