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Chemical Engineering Basics

Chemical Engineering Basics
__________ is the most suitable lubricant for drawing mild steel wires?

Water
Kerosene
Lime water
Sodium stearate

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Chemical Engineering Basics
The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Greater than
Less than
Equal to
Either A, B or C; depends on the size of atom

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Chemical Engineering Basics
Out of the following, the most ductile material is

Aluminium
Mild steel
Copper
Nickel

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Chemical Engineering Basics
Filler material used in welding having the lowest melting point out of the following is

Brazing spelter
Soft solder
Aluminium
Silver solder

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Chemical Engineering Basics
Frost formation on the evaporator tubes in the domestic refrigerators

Can be prevented by proper design
Decreased compressor power
Is immaterial
Causes heat loss due to poor heat transfer

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Chemical Engineering Basics
Atomic __________ of an element is a whole number.

Volume
Radius
Weight
Number

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