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Chemical Engineering Basics

Chemical Engineering Basics
Dies for wire drawing are generally made of

High carbon steel
Stainless steel
Mild steel
Carbides

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Chemical Engineering Basics
Angular displacement can be measured suitably by a

Shaft encoder
Stroboscope
Tachometer
Linear variable differential transducer (LVDT)

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Chemical Engineering Basics
Laser welding is widely employed in the __________ industries.

Process
Structural
Heavy
Electronic

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Chemical Engineering Basics
Sub zero treatment of steel is done to

Reduce the retained austenite in hardened steel
Induce temper brittleness after its hardening
Suppress martensite transformation
Enhance its working performance in sub zero atmosphere

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

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

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

Sodium stearate
Kerosene
Lime water
Water

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