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Chemical Engineering Basics

Chemical Engineering Basics
A psychrometer does not measure the __________ temperature of moist air.

Wet bulb
Dew point
None of these
Dry bulb

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Chemical Engineering Basics
Which of the following is a boiler accessory i.e., not a boiler mounting ?

Feed water pump
Blow off cock
Feed check valve
Stop valve

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Chemical Engineering Basics
__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Beryllia
Alumina
Zirconia
Magnesia

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Chemical Engineering Basics
At the point of boundary layer separation in fluid flow, the

Velocity gradient is flat
Shear stress is zero
Density variation is maximum
Shear stress is maximum

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Chemical Engineering Basics
A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent.

150
300
200
400

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Chemical Engineering Basics
Toughness of a material is measured by the

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

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