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Chemical Engineering Basics

Chemical Engineering Basics
Which of the following metals is the most prone to work hardening?

Copper
Aluminium
Lead
Brass

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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

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

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Chemical Engineering Basics
Which of the following is a boiler accessory i.e., not a boiler mounting ?

Feed water pump
Feed check valve
Stop valve
Blow off cock

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Chemical Engineering Basics
__________ of air does not increase with increase in temperature.

Viscosity
Density
Thermal diffusivity
Thermal conductivity

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

Recrystallisation
Twinning
Cross-slip
Dislocation climb

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Chemical Engineering Basics
The basic function of the drum in a boiler is to

Act as a storage for steam
Remove settling impurities from steam
Act as a storage for feed water
Separate steam from water

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