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Chemical Engineering Basics

Chemical Engineering Basics
Cold chiesel & hammers are made of

High carbon steel
High speed steel
Forged steel
Mild steel

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Chemical Engineering Basics
The basic function of the drum in a boiler is to

Act as a storage for steam
Remove settling impurities from steam
Separate steam from water
Act as a storage for feed water

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Chemical Engineering Basics
The approximate height of a blast furnace having a useful volume of 2000 m³ is about __________ metres

55
25
75
35

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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
3
7
5

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Chemical Engineering Basics
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Re0.8, Re0.5
Re0.8, Re-0.5
Re-0.8, Re0.5
Re0.5, Re0.8

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Chemical Engineering Basics
'Flare tower' used in industry is meant for

Absorbing the pollutant gases from the furnace exhaust
Cooling of furnace exhaust gases
None of these
Venting off (after burning) the excess inflammable/toxic gases at high pressure

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