Chemical Engineering - Materials and Construction

46. 

Which of the following has the highest compressive strength ?

A. Wrought iron
B. Cast iron
C. Mild steel
D. High carbon steel

Answer: Option D

Explanation:

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47. 

Zinc is not used

A. for producing zinc base die casting alloys.
B. in its oxide form as pigments.
C. as anode for corrosion prevention in boiler.
D. as an alloying element in various bronzes.

Answer: Option D

Explanation:

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48. 

Refined acetic acid storage vessel are made of

A. copper
B. aluminium
C. high carbon steel
D. nickel

Answer: Option B

Explanation:

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49. 

Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets.

A. chromium
B. nickel
C. tungsten
D. cobalt

Answer: Option D

Explanation:

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50. 

Constantan is an alloy of

A. Cu (55%) & Sn (45%).
B. Cu (55%) & Ni (45%).
C. Pt (95%) & Rh (10%).
D. Fe (80%) & Ni (20%).

Answer: Option B

Explanation:

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