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Chemical Engineering Basics

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

Twinning
Recrystallisation
Cross-slip
Dislocation climb

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Chemical Engineering Basics
Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?

Iron ore
Sinter
Limestone
Coke

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Chemical Engineering Basics
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.

Circulating fluidised bed
Pulverised fuel
Fluidised bed
Travelling grate stoker firing

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Chemical Engineering Basics
Out of the following, the joint produced by __________ has the lowest strength.

Rivetting
Brazing
Soldering
Welding

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Chemical Engineering Basics
Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is

2CaO . SiO₂
3CaO . SiO₂
5CaO . 3 Al2O₃
3CaO . Al2O₃

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Chemical Engineering Basics
Cold chiesel & hammers are made of

Mild steel
High speed steel
Forged steel
High carbon steel

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