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CHEMICAL ENGINEERING BASICS

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

One fourth
One and half times
One third
Half

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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

Convection
Conduction
Both A & B
Radiation

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Chemical Engineering Basics
Sub zero treatment of steel is done to

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

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

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

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

Enlarging
Counter boring
Drilling
Boring

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