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Chemical Engineering Basics

Chemical Engineering Basics
Specific __________ is a dimensionless quantity.

None of these
Humidity
Heat
Weight

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Chemical Engineering Basics
__________ is the most important element, which controls the physical properties of steel.

Manganese
Vanadium
Silicon
Carbon

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Chemical Engineering Basics
Limestone addition in the blast furnace is done to flux __________ present in the raw materials.

P
MnO₂
Al2O₃
SiO₂

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Chemical Engineering Basics
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight

1.5
7
5
3

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Chemical Engineering Basics
Sub zero treatment of steel is done to

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

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

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

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