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Chemical Engineering Basics

Chemical Engineering Basics
Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

None of these
Conductor
Semi-conductor
Insulator

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Chemical Engineering Basics
Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

Al2O₃
SiO₂
MnO₂
P

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Chemical Engineering Basics
Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then

It will be cavitated
It will deliver low discharge of liquid
Its efficiency will not be affected
It will not develop sufficient head to raise water

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Chemical Engineering Basics
Toughness of a material is measured by the

Scratch test
Vicker's hardness test
Notched bar test
Universal testing machine

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Chemical Engineering Basics
Air refrigeration cycle is used in the air crafts, because of

Its high heat transfer rate
Its low unit weight per ton of refrigeration
Low temperature encountered at high altitude
Its higher co-efficient of performance (COP)

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

None of these
Hcp
Fcc
Bcc

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