Chemical Engineering · all questions

Fluid Mechanics
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Q681

Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition.

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Q682

Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition.

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Q683

In frictional fluid flow, the quantity,

\frac{P}{ρ} + \frac{V ^{2}}{2 gc} + \frac{gz}{gc},

is

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Q684

Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg.

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Q685

Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

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Q686

As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to (where,

μ

= fluid viscosity)

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Q687

Toothpaste is a

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Q688

Schedule number of a pipe, which is a measure of its wall thickness, is given by

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Q689

Path followed by water jet issuing from the bottom of a water tank will be a

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Q690

Turbine impeller

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Q691

Transition from laminar flow to turbulent flow is aided by the

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Q692

Capillary tube method of viscosity measurement is based on the

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Q693

In power law,

ζ = A (\frac{du}{dy})^{2} + B,

then the fluid is

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Q694

In deriving Bernoulli's equation, fluid is assumed to be

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Q695

\frac{C _{p}}{C _{v}}

is termed as

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Q696

The equivalent diameter for flow through a rectangular duct of width B and height H is

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Q697

As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1

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Q698

Delivery of insufficient quantity of liquid by a pump may be caused by

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Q699

Design of the casing of centrifugal pump should be such as to minimise the

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Q700

A lubricant 100 times more viscous than water would have a viscosity (in Pa.s)

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