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Chemical Engineering Basics

Chemical Engineering Basics
There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

Two
Three
None of these
One

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Chemical Engineering Basics
Materials used for making permanent magnets containing iron and nickel are made by __________ technique.

Powder metallurgy
Casting
None of these
Forging

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Chemical Engineering Basics
Out of the following, the joint produced by __________ has the lowest strength.

Welding
Rivetting
Brazing
Soldering

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Chemical Engineering Basics
At the point of boundary layer separation in fluid flow, the

Shear stress is zero
Velocity gradient is flat
Shear stress is maximum
Density variation is maximum

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Chemical Engineering Basics
Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the

Diameter of the pipe
Length of the pipe
Density of the fluid
Velocity of the fluid

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Chemical Engineering Basics
While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

3000
1800
2400
2000

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