Chemical Engineering - Materials and Construction

21. 

Sulphur melting pit in the sulphuric acid plant is made of

A. lead lined stainless steel.
B. cast iron.
C. steel or cement-brick lined.
D. hard wood.

Answer: Option C

Explanation:

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22. 

The hardest material just prior to diamond in Mho's scale is

A. topax
B. carborundum
C. corrundum
D. calcite

Answer: Option C

Explanation:

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23. 

Percentage elongation of a material is a measure of its

A. ductility
B. brittleness
C. toughness
D. malleability

Answer: Option A

Explanation:

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24. 

Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with

A. karbate
B. lead or glass
C. fireclay bricks
D. PVC

Answer: Option B

Explanation:

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25. 

Heavy duty bearings are usually made of

A. white metal
B. phosphorous bronze
C. monel
D. zinc

Answer: Option A

Explanation:

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