Chemical Engineering - Chemical Engineering Basics

26. 

Out of the following, the most melleable material is

A. copper
B. aluminium
C. wrought iron
D. lead

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

27. 

Addition of silicon to aluminium improves its

A. corrosion resistance
B. machinability
C. castability
D. none of these

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

28. 

Which of the following properties of a solid is not dependent on crystal imperfection ?

A. Ductility
B. Semiconductiyity
C. Melting point
D. Yield stress

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

29. 

In a good rimming steel

A. carbon and silicon should be low.
B. silicon should be low but carbon should be high.
C. both silicon & carbon should be high.
D. silicon should be high but carbon should be low.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

30. 

"'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

A. V
B. V/2
C. 2V
D. 3V

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.