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Chemical Engineering Basics

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

55
75
25
35

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Chemical Engineering Basics
Surface tension is due to the __________ forces.

Viscous
Difference between adhesive & cohesive
Adhesive
Cohesive

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Chemical Engineering Basics
Function of feed check valve in a boiler is to

Regulate the water flow to boiler
Prevent the back flow of water
Facilitate circulation of high pressure feed water
Check the water level in the boiler drum

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Chemical Engineering Basics
Hydrogen in liquid steels is dissolved

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

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Chemical Engineering Basics
The ratio of thermal & electrical conductivity is same for all the metals at the same temperature ; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)

1/T
T
T²
1/T²

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Chemical Engineering Basics
Rain drops falling through atmospheric air attain limited terminal velocity, because of

Viscous force exerted by air
Force of gravity
Surface tension effects of water
Upward thrust due to air

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