Question

The quantity which decides the nature of the flow of a viscous liquid through a pipe is known as

Answer 1

1. The quantity which decides the nature of the flow of a viscous liquid through a pipe is known as Reynold's Number.
2. Reynold's Number is the ratio of inertial forces to viscous forces. It is a dimensionless quantity.
3. The value of Reynold's Number decides the nature of the flow. A higher number suggests turbulent flow and a lower Reynold's number suggests Laminar flow

Hence, Reynold's Number decides the nature of the flow of a viscous liquid through a pipe.