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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

Pickling
Skimming
Descaling
Shot blasting

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Chemical Engineering Basics
Hydrogen in liquid steels is dissolved

In the ionic form
As tiny gas bubbles
In the molecular form
In the atomic form

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Chemical Engineering Basics
1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).

10000
1000
10
100

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

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

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Chemical Engineering Basics
Out of the following, which will fracture most readity, when hit with a hard hammer ?

Bronze
Brass
Cast iron
German silver

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

Stop valve
Feed check valve
Blow off cock
Feed water pump

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