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Chemical Engineering Basics

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

Alloy steel
Mild steel
High carbon steel
Grey cast iron

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Chemical Engineering Basics
A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is

0.33
0.25
0.44

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Chemical Engineering Basics
The process of removal of scale formed during hot rolling of steel is termed as

Pickling
Skimming
Shot blasting
Descaling

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

Atomisation
Grinding/milling
Hammering
Electrolytic deposition

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Chemical Engineering Basics
Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.

Cold rolling
Casting
Forging
Hot rolling

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Chemical Engineering Basics
Which of the following metals reacts violently with water ?

Sodium
Magnesium
Calcium
Mercury

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