Critical Velocity and Reynolds Number

Critical velocity is the velocity below which the flow of liquid is _____?

The critical velocity depends on the radius of the earth, mass of the earth and gravitational constant.

Define critical velocity?

Which of the following statements is true in the context of inertial force?

This force is the driving force in fluids.

What is the inertial force in fluids?

What would be the Reynolds number if the flow is streamlined?

What would be the Reynolds number if the flow is turbulent?

How does Reynolds number distinguish between laminar flow and turbulent flow?

The ratio of inertial force to viscous force represents Reynolds number.

The onset of turbulence in a liquid is determined by: Reynold's number.

Which of the following options represent the ratio of inertial force to viscous force?

A liquid with coefficient of viscosity$\eta$ $=1$ poise is flowing in a pipe of radius$\text{3 cm}$ such that the rate of volume flow is $1000\text{litre/min}$. Determine the Reynolds number

A flow of liquid is streamline, if the Reynold's number is

In an unsteady flow the velocity at point in the flow varies with _________.

A cylindrical vessel of area of cross-section $A$ is filled with water to a height $H$. It has capillary tube of length $l$ and radius $r$ fitted horizontally at its bottom. If the coefficient of viscosity of water is $\eta$ then time required in which level will fall to a height $\frac{H}{2}$ is (density of water is $\rho$)