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Chemical Engineering Basics

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
3
5

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Chemical Engineering Basics
Protection of ship hulls against sea water corrosion is done by coating with zinc because of the fact that zinc compared to iron is

Oxidised preferentially
Cheaper
Reduced preferentially
Lighter

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Chemical Engineering Basics
Coke is added in the blast furnace to

Remove sulphur & phosphorus from molten metal
Reduce & melt the iron ore
None of these
Increase the fluidity of slag

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Chemical Engineering Basics
Kinematic viscosity of water as compared to that of air is

15% less
Same
15% more
More

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Chemical Engineering Basics
Brinell Hardness Number (BHN) for talc is approximately in the range of

200-250
100-150
1-5
20-30

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Chemical Engineering Basics
Rankine cycle comprises of two isothermal and two __________ processes.

Polytropic
Isentropic
None of these
Isobaric

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