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Chemical Engineering Basics

Chemical Engineering Basics
The process of removal of scale formed during hot rolling of steel is termed as

Skimming
Pickling
Descaling
Shot blasting

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Chemical Engineering Basics
Fatigue resistance of a material is measured by the

Elastic limit
Endurance limit
Ultimate tensile strength
Young's modulus

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Chemical Engineering Basics
When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively

Increases & decreases
Decreases & decreases
Decreases & increases
Increases & increases

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

Plastic
Steel
Cast iron
Concrete

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Chemical Engineering Basics
Alloys having more than 80% copper are generally more

Abrasion resistant
Machinable
Prone to season cracking
Corrosion resistant

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Chemical Engineering Basics
A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.

None of these
Derivative
Proportional
Integral

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