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Chemical Engineering Basics

Chemical Engineering Basics
Which of the following will resist maxi-mum shock & vibration without cracking?

Grey cast iron
White cast iron
Malleable iron
Graphite

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Chemical Engineering Basics
Coke is added in the blast furnace to

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

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Chemical Engineering Basics
What is the value of included angle of a triangular notch for maximum discharge ?

120°
30°
90°
60°

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Chemical Engineering Basics
__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.

Alumina
Beryllia
Zirconia
Magnesia

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Chemical Engineering Basics
Presence of small quantity of sulphur in low carbon steel improves its

Machinability
Hardenarality
Weldability
Formability

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Chemical Engineering Basics
Carbon is present in the form of __________ in grey cast iron.

Cementite
Flakes
Spheroids
Nodular aggregates of graphite

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