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Chemical Engineering Basics

Chemical Engineering Basics
The weight of a body at the centre of the earth is

Zero
Same as on the surface of the earth
None of these
Infinite

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Chemical Engineering Basics
Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is

5CaO . 3 Al2O₃
3CaO . Al2O₃
2CaO . SiO₂
3CaO . SiO₂

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Chemical Engineering Basics
Kinematic viscosity of water as compared to that of air is

15% less
More
Same
15% more

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Chemical Engineering Basics
The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.

100
50
None of these

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Chemical Engineering Basics
Fatigue resistance of a material is measured by the

Young's modulus
Endurance limit
Elastic limit
Ultimate tensile strength

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Chemical Engineering Basics
__________ is not a heat treatment process.

Austempering
Cyaniding
Martempering
Pakerising

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