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Chemical Engineering Basics

Chemical Engineering Basics
Powder metallurgy process does not make metal powder by

Atomisation
Electrolytic deposition
Hammering
Grinding/milling

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Chemical Engineering Basics
For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.

Expansion & compression are isentropic
Heat rejection is lower
Maximum temperature is higher
Combustion is at constant volume

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Chemical Engineering Basics
Which of the following is an example of cathodic protection of metals against corrosion ?

Galvanised iron
Painted steel
Case hardened steel
Lead lined reactor

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Chemical Engineering Basics
Filler material used in welding having the lowest melting point out of the following is

Soft solder
Brazing spelter
Silver solder
Aluminium

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Chemical Engineering Basics
During sensible cooling of air, its wet bulb temperature

Increases but dew point remains constant
Decreases but dew point remains constant
Decreases & the dew point increases
Increases & the dew point decreases

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Chemical Engineering Basics
The property of material, by which a given amount of energy is absorbed by it, without plastic deformation is called

Impact strength
Toughness
Resilience
Ductility

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