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Chemical Engineering Basics

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

Three
Two
One
None of these

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Chemical Engineering Basics
A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?

Rubber
Steel
Glass
Brass

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Chemical Engineering Basics
The most important material handling system in an integrated steel plant is the

Belt conveyor
Overhead hoists & cranes
Truck
Diesel locomotive

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Chemical Engineering Basics
In radiative heat transfer, a grey surface is the one, which has

Equal brightness in all directions
Zero reflectivity
Emissivity independent of wavelength
Grey appearance to the eye

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Chemical Engineering Basics
The basic function of the drum in a boiler is to

Separate steam from water
Remove settling impurities from steam
Act as a storage for steam
Act as a storage for feed water

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Chemical Engineering Basics
Which of the following is an example of cathodic protection of metals against corrosion ?

Lead lined reactor
Case hardened steel
Galvanised iron
Painted steel

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