Chemical Engineering - Chemical Engineering Basics

16. 

Which of the following is not found in iron-carbon equilibrium diagram ?

A. Curie point
B. Peritectic point
C. Eutectic point
D. Eutectoid point

Answer: Option A

Explanation:

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17. 

Which of the following metals can not be extracted by pyrometallurgical process from its sulphide ore?

A. Copper
B. Mercury
C. Lead
D. None of these

Answer: Option B

Explanation:

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18. 

Nitrogen compounds are not used in the manufacture of

A. fertilisers
B. gun powder
C. tip of match sticks
D. explosive

Answer: Option C

Explanation:

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19. 

Stellite is a trade name for the

A. cermets.
B. ferrous cast alloys.
C. non-ferrous cast alloys.
D. products made by powder metallurgy techniques.

Answer: Option C

Explanation:

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20. 

Needles are produced by

A. forging
B. swaging
C. extrusion
D. machining

Answer: Option B

Explanation:

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