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 For manometer, a better liquid combination is one having lower surface tension higher surface tension high density and viscosity surface tension is no criterion lower surface tension higher surface tension high density and viscosity surface tension is no criterion ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In the case of steady flow of a fluid, the acceleration of any fluid particle is zero under limiting conditions constant variable zero zero under limiting conditions constant variable zero ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The flow in a pipe or channel is said to be uniform when Each liquid particle has a definite path The liquid particles at all sections have the same velocities The liquid particles at different sections have different velocities The quantity of liquid flowing per second is constant Each liquid particle has a definite path The liquid particles at all sections have the same velocities The liquid particles at different sections have different velocities The quantity of liquid flowing per second is constant ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension) 4σ cosα/wd 4wd/σ cosα wd/4σ cosα σ cosα/4wd 4σ cosα/wd 4wd/σ cosα wd/4σ cosα σ cosα/4wd ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The unit speed of the turbine runner is N/H N/H² N/√H N/H3/2 N/H N/H² N/√H N/H3/2 ANSWER DOWNLOAD EXAMIANS APP
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