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Chemical Engineering Basics

Chemical Engineering Basics
Deformation band is absent in materials having __________ lattice crystal structure.

Hcp
Fcc
None of these
Bcc

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Chemical Engineering Basics
Sub zero treatment of steel is done to

Reduce the retained austenite in hardened steel
Induce temper brittleness after its hardening
Suppress martensite transformation
Enhance its working performance in sub zero atmosphere

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Chemical Engineering Basics
Lead is poured into the joints between two __________ pipes.

Steel
Cast iron
Plastic
Concrete

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Chemical Engineering Basics
__________ is the most suitable lubricant for drawing mild steel wires?

Sodium stearate
Lime water
Water
Kerosene

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Chemical Engineering Basics
Friction factor for fluid flow in pipe does not depend upon the

Fluid density & viscosity
Pipe roughness
Pipe length
Mass flow rate of fluid

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Chemical Engineering Basics
Function of feed check valve in a boiler is to

Prevent the back flow of water
Check the water level in the boiler drum
Regulate the water flow to boiler
Facilitate circulation of high pressure feed water

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