Viscosity

IMPORTANT

Viscosity: Overview

This Topic covers sub-topics such as Laminar Flow, Reynolds Number, Stokes' Law, Coefficient of Viscosity, Turbulent Flow, Streamline Flow, Poiseuille's Law, Viscous Force, Critical Velocity, Viscosity of Fluids and, Dimensions of Viscosity

Important Questions on Viscosity

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What is tube of flow?
 

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What is the difference between viscosity and coefficient of viscosity?

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What is the assumption of the Poiseuille equation for the flow of liquid through a capillary tube?

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Does a parachute descend slowly?

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What are practical applications of viscosity?
 

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What is steady and unsteady flow of fluid?

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Dimensional formula of viscosity is 

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The viscous force the relative motion between the adjacent layers of a fluid in motion.Which one of the flowing fits best in the sentence ?

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Water flows between two plates of which the upper one is stationary and the lower one is moving with a velocity V. What will be two velocity of the fluid in constant with the upper plate ?

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what is the velocity of a metallic ball of radius r falling in a tank of liquids of the instant when its acc' is one half that of a freely falling body?

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A spherical body of diameter D is falling in viscous medium. Its terminal velocity is equal to

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In the equation Cd=1K 0.5What does K mean ?

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Co- efficient of charge (Cd) can be written as Cd=1K (0.5) 

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For sharp edge orifice co- efficient of discharge lies between

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

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Coefficient of discharge is used to measure _______

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For fully developed turbulent flow through rough pipe of very large Reynolds number, friction factor is 

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

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

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Define critical velocity?