Critical Velocity and Reynolds Number

What is the dimension of rate of flow?

If $p$ is the density and $\eta$ is coefficient of viscosity of fluid which flows with a speed $v$ in the pipe of diameter $d$, the correct formula for Reynolds number $R_e$ is

Define critical velocity.

What is Reynold's number ? Give its significance.

A liquid flows through two capillary tube under the same pressure head. The lengths of the tube are in the ratio $2:1$ and the ratio of their diameters is  $2:3$ . Compare the rates of flow of liquid through the tubes ?

A liquid of density $\rho$ comes out with a velocity '$V$" from a horizontal tube of area of cross section $A$. The reaction force exerted by the liquid on the tube is $f$, then

A force that is caused due to attraction of particles in the layer of fluid bulk is called?

What causes unsteady flow?

What is steady and unsteady flow of fluid?

In the equation $\mathrm{Cd}=\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$\mathrm{K}$}\right. \left(0.5\right)$What does $\mathrm{K}$mean ?

Co- efficient of charge$\left(\mathrm{Cd}\right)$ can be written as $\mathrm{Cd}=\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$\mathrm{K}$}\right. (0.5)$

For sharp edge orifice co- efficient of discharge lies between

Coefficient of discharge is the ________of actual discharge to the theoretical discharge.

Coefficient of discharge is used to measure _______

What is the significance of Reynolds number?

What is unsteady flow of fluid? 

The ratio of inertial force to viscous force represents:

The critical velocity is the minimum velocity required to put a satellite into orbit.

Define critical velocity?

The significance of Reynolds number is a dimensionless number?