Chemical Engineering - Chemical Engineering Basics

46. 

The fatigue resistance of a material is improved by the following technique.

A. Anodising
B. Carburising
C. Ion nitriding
D. Shot peening

Answer: Option D

Explanation:

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47. 

Increase in temperature, in general results in the

A. decrease in the viscosities of both liquids & gases.
B. increase in the viscosities of both liquids & gases.
C. increase in the viscosity of liquids and decrease in that of gases.
D. decrease in the viscosity of liquids and increase in that of gases.

Answer: Option D

Explanation:

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48. 

Which of the following can be manufactured using powder metallurgy techniques?

A. Brake linings
B. Bearings
C. Carbide tool tips
D. All 'a', 'b' and 'c'.

Answer: Option D

Explanation:

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49. 

Removal of non-condensables from steam or other vapour is termed as the __________ process.

A. condensation
B. dearation
C. scavanging
D. exhaust

Answer: Option B

Explanation:

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50. 

Cold heading or upsetting is categorised as the __________ process.

A. extrusion
B. bending
C. rolling
D. forging

Answer: Option D

Explanation:

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