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Chemical Engineering Basics

Chemical Engineering Basics
Lead is poured into the joints between two __________ pipes.

Concrete
Steel
Cast iron
Plastic

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Chemical Engineering Basics
Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.

Brinell
Vicker's
Knoop
Rockwell

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Chemical Engineering Basics
Air standard Otto cycle is more efficient than the diesel cycle for the same

Compression ratio & pressure
Cylinder dimension & rpm
Heat addition & pressure
Heat addition & compression ratio

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Chemical Engineering Basics
Which of the following is a unit of time ?

Barn
Angstrom
Light year
None of these

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Chemical Engineering Basics
Sub zero treatment of steel is done to

Enhance its working performance in sub zero atmosphere
Reduce the retained austenite in hardened steel
Suppress martensite transformation
Induce temper brittleness after its hardening

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Chemical Engineering Basics
Chlorine acts as a bleaching agent only in the presence of

Dry air
Sunlight
Moisture
Pure oxygen

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