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Chemical Engineering Basics

Chemical Engineering Basics
The phenomenon of strain-ageing is generally experienced with

High carbon steel
Cast iron
Low carbon steel
High manganese steel

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Chemical Engineering Basics
On decreasing the grain size of a polycrys-talline material, the property most likely to deteriorate is

Creep
Toughness
Tensile strength
Fatigue

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

Twinning
Recrystallisation
Dislocation climb
Cross-slip

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Chemical Engineering Basics
Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

Gr0.25, Gr0.33
Gr, Gr0.25
Gr0.33, Gr0.25
Gr0.25, Gr

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Chemical Engineering Basics
Which of the following will resist maxi-mum shock & vibration without cracking?

Grey cast iron
Malleable iron
White cast iron
Graphite

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Chemical Engineering Basics
Circulation of liquid metal (i.e. molten sodium) in a liquid metal cooled nuclear reactor is done by a/an __________ pump.

Electromagnetic
Axial flow
Reciprocating
Diaphragm

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