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 A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is 275.4 r.p.m 175.4 r.p.m. 241.5 r.p.m. 215.5 r.p.m. 275.4 r.p.m 175.4 r.p.m. 241.5 r.p.m. 215.5 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The eddy viscosity for turbulent flow is a physical property of the fluid. independent of the flow a function of temperature only dependent on the flow a physical property of the fluid. independent of the flow a function of temperature only dependent on the flow ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which Delivers unit discharge under unit speed Develops unit power under unit speed Develops unit power under unit head Delivers unit discharge under unit head Delivers unit discharge under unit speed Develops unit power under unit speed Develops unit power under unit head Delivers unit discharge under unit head ANSWER DOWNLOAD EXAMIANS APP
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 V1 / (V1 - V2) (V1 - V2) / V1 V1² / (V1² - V2²) (V1² - V2²) / V1² V1 / (V1 - V2) (V1 - V2) / V1 V1² / (V1² - V2²) (V1² - V2²) / V1² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The pressure of air __________ with the increase of height from the surface of the earth. Decreases Does not change Increases None of these Decreases Does not change Increases None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS