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CHEMICAL ENGINEERING BASICS

Chemical Engineering Basics
Ultimate strength in tension as compared to that in shear for steel is

One third
One and half times
Half
One fourth

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Chemical Engineering Basics
The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is

Both A & B
Radiation
Convection
Conduction

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Chemical Engineering Basics
Sub zero treatment of steel is done to

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

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Chemical Engineering Basics
'Flare tower' used in industry is meant for

Cooling of furnace exhaust gases
None of these
Venting off (after burning) the excess inflammable/toxic gases at high pressure
Absorbing the pollutant gases from the furnace exhaust

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Chemical Engineering Basics
A jig is used while __________ a hole.

Boring
Counter boring
Drilling
Enlarging

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