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Chemical Engineering Basics

Chemical Engineering Basics
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

25/2
23
23/2
21/3

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Chemical Engineering Basics
Eutectoid reaction for iron-carbon system occurs at a temperature of __________ °C.

1147
959
1493
597

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Chemical Engineering Basics
Which of the following heat treatment processes is usually applied to castings ?

Carburising
Normalising
Annealing
Tempering

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Chemical Engineering Basics
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Re-0.8, Re0.5
Re0.8, Re0.5
Re0.5, Re0.8
Re0.8, Re-0.5

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Chemical Engineering Basics
Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.

Elastic limit
Maximum point
Proportional limit
Yield strength

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Chemical Engineering Basics
With increase in steam pressure, its specific volume decreases

Linearly
Slowly first and then rapidly
Rapidly first and then slowly
Exponentially

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