Fluid Mechanics
If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V= fluid velocity f = friction factor).

F = f₁ + f₂ + f₃
Q = Q₁ + Q₂ + Q₃
V₁ = V₂ = V₃
Q₁ = Q₂ = Q₃

ANSWER DOWNLOAD EXAMIANS APP

Fluid Mechanics
A stream line is

Drawn normal to the velocity vector at every point
Always the path of particle
Fixed in space in steady flow
A line connecting the mid points of flow cross-section

ANSWER DOWNLOAD EXAMIANS APP