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Chemical Engineering Basics

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

Aluminium
Soft solder
Brazing spelter
Silver solder

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Chemical Engineering Basics
Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

Troostite
Martensite
Sorbite
Bainite

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Chemical Engineering Basics
Swaging is a/an __________ operation.

Drawing
Extrusion
Forging
Piercing

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Chemical Engineering Basics
Powder metallurgy process does not make metal powder by

Hammering
Atomisation
Grinding/milling
Electrolytic deposition

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Chemical Engineering Basics
Oxyacetylene reducing flame is used while carrying out welding on

Alloy steel
High carbon steel
Grey cast iron
Mild steel

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Chemical Engineering Basics
In age-hardenable alloys, maximum ductility is obtained

After overageing
Immediately after solution treatment and subsequent quenching
After optimum ageing
In as cast state

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