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Chemical Engineering Basics

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.

200
150
300
400

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Chemical Engineering Basics
Oxygen cylinders used for autogenous (cutting/welding) purposes are

Made by sand casting
Seamless & made of steel
Heat treated before use
Welded steel cylinders

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Chemical Engineering Basics
Powder metallurgy is used to produce

Components of such alloys whose constituents do not form alloys readily
Components of large size
Porosity free components
High precision components with complex cavities and sharp features

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

Annealing
Tempering
Normalising
Carburising

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Chemical Engineering Basics
Carnot cycle is also termed as the constant __________ cycle in thermodynamics.

Entropy
Pressure
Heat
Volume

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

Blow off cock
Feed check valve
Feed water pump
Stop valve

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