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Chemical Engineering Basics

Chemical Engineering Basics
Milligram of KOH required to saponify 1 gm of oil is called its __________ number.

Precipitation
Acid
Saponification
Emulsion

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Chemical Engineering Basics
Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Martensite
Cementite
Pearlite
Austenite

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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
Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

1.2090277777778
0.70902777777778
0.37569444444444
0.95902777777778

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

Plastic
Concrete
Cast iron
Steel

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

None of these
Bcc
Hcp
Fcc

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