Hydraulics and Fluid Mechanics in ME The flow ratio in case of Francis turbine varies from 0.6 to 0.9 1 to 1.5 0.15 to 0.3 0.4 to 0.5 0.6 to 0.9 1 to 1.5 0.15 to 0.3 0.4 to 0.5 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid) 32μvl/wd² 16μvl/wd² 8μvl/wd² 4μvl/wd² 32μvl/wd² 16μvl/wd² 8μvl/wd² 4μvl/wd² ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME According to equation of continuity, a1/v1 = a2/v2 w1a1 = w2a2 w1v1 = w2v2 a1v1 = a2v2 a1/v1 = a2/v2 w1a1 = w2a2 w1v1 = w2v2 a1v1 = a2v2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The purpose of a surge tank is All of these To regulate flow of water to turbines by providing necessary retarding head of water To eliminate water hammer possibilities To control the pressure variations due to rapid changes in the pipe line flow All of these To regulate flow of water to turbines by providing necessary retarding head of water To eliminate water hammer possibilities To control the pressure variations due to rapid changes in the pipe line flow ANSWER DOWNLOAD EXAMIANS APP
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 0.707 R 0.423 R 0.223 R 0.577 R 0.707 R 0.423 R 0.223 R ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to 1/2 × sloping side 1/4 × (depth + breadth) 1/2 × breadth 1/2 × depth 1/2 × sloping side 1/4 × (depth + breadth) 1/2 × breadth 1/2 × depth ANSWER DOWNLOAD EXAMIANS APP
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