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Chemical Engineering Basics

Chemical Engineering Basics
The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called

Impact strength
Ductility
Resilience
Toughness

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Chemical Engineering Basics
Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

MnO₂
SiO₂
Al2O₃
P

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Chemical Engineering Basics
Which of the following phenomenon/ phenomena is/are diffusion controlled ?

Recrystallisation
Cross-slip
Twinning
Dislocation climb

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Chemical Engineering Basics
While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.

2400
1800
3000
2000

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Chemical Engineering Basics
Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is

Lighter
Cheaper
Oxidised preferentially
Reduced preferentially

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Chemical Engineering Basics
In a casting, cold shut defect is caused by

Faulty gating system
Very low mould permeability
Melt-mould reactions
Low pounhg temperature

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