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Chemical Engineering Basics

Chemical Engineering Basics
Atomic __________ of an element is a whole number.

Number
Volume
Radius
Weight

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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.

Proportional
Derivative
Integral
None of these

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Chemical Engineering Basics
The most important material handling system in an integrated steel plant is the

Diesel locomotive
Overhead hoists & cranes
Belt conveyor
Truck

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Chemical Engineering Basics
Friction factor for fluid flow in pipe does not depend upon the

Pipe length
Pipe roughness
Fluid density & viscosity
Mass flow rate of fluid

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Chemical Engineering Basics
Sub zero treatment of steel is done to

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

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Chemical Engineering Basics
Oxyacetylene reducing flame is used while carrying out welding on

Alloy steel
Grey cast iron
Mild steel
High carbon steel

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