In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of___________________?

Related Mcqs:

Air vessel fitted to a reciprocating pump____________________?

A. Increases the work done B. Decreases the work done C. Causes cavitation D. Results in non-uniform discharge...

The boundary layer is that part of a moving fluid, in which the fluid velocity is_________________?

A. Affected by the fluid flow pressure B. Constant C. Affected by the presence of a solid boundary D. All A., B. and C....

The ratio of inertial forces to viscous forces is called the ______________ number?

A. Weber B. Mach C. Froude D. Reynold...

What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate ?

A. 0.5 B. 1 C. 1.5 D. 2...

The ratio of maximum to average velocity in case of streamline flow between parallel plates is______________________?

A. 1 B. 1.5 C. 2 D. 2.5...