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Chemical Engineering Basics

Chemical Engineering Basics
__________ is the most important element, which controls the physical properties of steel.

Manganese
Carbon
Silicon
Vanadium

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Chemical Engineering Basics
Lime contains about 90% CaO. Percentage CaO present in limestone is about

50
80
70
25

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Chemical Engineering Basics
If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.

Nucleate boiling
Convection
Radiation
Conduction

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Chemical Engineering Basics
Which of the following materials has the maximum shrinkage allowance ?

Aluminium alloy
Lead
Brass
Cast iron

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

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

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Chemical Engineering Basics
Capacity & power requirement for an air compressor working at high altitude compared to sea-level will be

Either more or less; depends on the climatic conditions
Same
More
Less

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