For laminar flow in circular pipes, the Darcy’s friction factor f is equal to_________________?

Related Mcqs:

In steady flow of a fluid, the total accele ration of any fluid particle______________?

A. can be zero B. is never zero C. is always zero D. is independent of coordinates...

When an ideal fluid flows past a sphere________________?

A. highest intensity of pressure occurs around the circumference at right angles to flow B. lowest pressure intensity occurs at front stagnation point C. lowest pressure intensity occurs at rear stagnation point D. total drag is zero...

The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is__________________?

A. 0.40 cm B. 0.20 cm C. 0.10 cm D. 0.05 cm Assume that boundary layer is entirely laminar...

The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is________________?

A. 0.223 R B. 0.423 R C. 0.577 R D. 0.707 R where R is radius of pipe...

A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, then________________?

1. the ball will move to the front 2. the bubble will move to the front 3. the ball will move to the rear 4. the bubble will move to the rear Find out which of the above statements are correct ? A. (1) and (2) B. (1)and(4) C. (2) and (3) D. (3) and … A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a...