Chemical Engineering - Chemical Process

36. 

Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material ?

A. Slag cement
B. Glasses
C. Porcelain/Potteries
D. Teflon

Answer: Option D

Explanation:

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37. 

Glass is

A. mainly CaO
B. subjected to galvanising
C. a super cooled liquid
D. all (a), (b) and (c)

Answer: Option C

Explanation:

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38. 

Analgesic drugs are

A. pain relievers
B. antibiotics
C. used in the treatment of T.B.
D. used in the treatment of typhiod

Answer: Option A

Explanation:

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39. 

Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.

A. -53
B. -103
C. -183
D. -196

Answer: Option C

Explanation:

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40. 

Commonly used glass is known as the __________ glass.

A. flint
B. hard
C. pyrex
D. soda

Answer: Option D

Explanation:

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