Reynolds number and experiment

who discover the Reynolds number.

• John Dalton

• Earnest Heckel

• Osborne Reynolds

• Micheal Farraday

How is Reynolds number dependent on the viscosity of fluid?

• Directly proportional

• Inversely proportional

• Not effected by viscosity of fluid

• None

How can we calculate the value of Reynolds number.

• Viscous force / Initial force

• Initial force × viscous force

• Initial force / viscous force

• None

If the value of the Reynolds number is <1000, then the nature of flow of fluid is

• Slow

• Turbulent

• Laminar

• Viscous

Which of the following statement is true for the Reynolds experiment?

• If dye filament forms straight line, then it is called as laminar flow.

• If dye filament flows in a slightly wavy manner, then it said to be transition flow.

• If dye filament diffuses over the entire cross section of the tube while passing, then it is called as turbulent flow.

• All

Which dye is basically used in the Reynolds experiment?

• Potassium permanganate solution

• Anthraquinone dye

• Aniline dye

• None

Reynolds number is which type of quantity

• Scalar

• Vector

• Dimension less

• none

If we increase the diameter of pipe through which the fluid is flowing, what effect will be there on the value of Reynolds number

• Increases

• Decreases

• first decreases and then increases

• first increases then decreases

what is the applications of Reynolds number

• Predict the direction of fluid flow

• Study the rate of sedimentation

• calculate the total mechanical energy

• all

If the floe of fluid is turbulent then the value of Reynolds number must be

• > 2000

• between 2000 and 4000

• < 2000

• > 4000