Hydraulic mean radius for flow through packed bed of spherical particle of size, ‘Dp, with porosity ‘ε’ is________________?

Related Mcqs:

For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by_______________?

A. ∂u/∂x = 0 B. ∂(ρu)/∂x = 0 C. (∂u/∂x) = – (∂ρ/∂t) D. ∂ρ/∂t = 0...

The fluid property which matters for falling rain drops to acquire spherical shape is its__________________?

A. Pressure B. Height of descend C. Viscosity D. Surface tension...

The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonian fluid in a circular pipe is_____________________?

A. 0.5 B. 1 C. 2 D. 0.66...

What is the value of co-efficient of discharge for square edged circular orifice (for β = 0.3 to 0.5) ?

A. 0.61 – 0.63 B. 0.5 – 0.75 C. 0.75 – 0.90 D. 0.35 – 0.55...

Which of the following is an undesirable property of a manometric liquid ?

A. Non-sticky & non-corrosive nature B. High vapour pressure C. Low viscosity & surface tension D. Low co-efficient of thermal expansion...