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) 0.577 R 0.223 R 0.707 R 0.423 R 0.577 R 0.223 R 0.707 R 0.423 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the Velocity head Manometric head Kinetic head Static head Velocity head Manometric head Kinetic head Static head ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Cavitation will begin when flow is increased the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid pressure becomes more than critical pressure pressure is increased flow is increased the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid pressure becomes more than critical pressure pressure is increased ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The units of dynamic or absolute viscosity are kg sec/meter metres² per sec newton-sec per meter newton-sec² per meter kg sec/meter metres² per sec newton-sec per meter newton-sec² per meter ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by Designing new impeller Trimming the impeller size to the required size by machining Some other alterations in the impeller Not possible Designing new impeller Trimming the impeller size to the required size by machining Some other alterations in the impeller Not possible ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The Francis formula for the discharge over Cipoletti weir is 1.84 LH 1.84 LH1/2 1.84 LH3/2 1.84 LH5/2 1.84 LH 1.84 LH1/2 1.84 LH3/2 1.84 LH5/2 ANSWER DOWNLOAD EXAMIANS APP
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