Chemical Engineering Basics - Chemical Engineering Questions and Answers

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Nickel is a __________ material.

ferromagnetic

semi-conductor

paramagnetic

ferroelectric

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Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher

ductility

impact strength

machinability

melting point

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L.D. converters are generally lined with

magnesite

fireclay

chrome magnesite

silica

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When the weight of a ball inside the ball mill is just balanced by the centrifugal force,

the ball abandons its circular path for a parabolic path.

the ball abandans its parabolic path for a circular path.

the ball continues to move on a circular path.

the ball continues to move on a parabolic path.

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__________ is not a heat treatment process.

Cyaniding

Pakerising

Austempering

Martempering

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Volute casing of a centrifugal pump does not facilitate

uniform flow of fluid coming out of the impeller.

increase in the pump efficiency.

conversion of the part of the velocity head to the pressure head.

conversion of the part of the pressure head to velocity head.

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Desert air coolers being rendered ineffective in rainy season is due to

low humidity

low temperature

high humidity

sunny weather

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The hydraulic radius of a circular pipe of diameter 'd' flowing full is

d/4

d/2

2d/3

d/3