Chemical Engineering - Environmental Engineering

46. 

Green house effect is accentuated by

A. deforestation.
B. rapid industrialisation.
C. increased transportation activity.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

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47. 

Thermal pollution due to excessive heat & temperature in the working place causes

A. reduction in working efficiency of manpower.
B. fatigue.
C. high breathing rate.
D. all (a), (b) & (c).

Answer: Option D

Explanation:

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48. 

High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes

A. cancer
B. silicosis
C. respiratory disease (e.g., asthma)
D. reduced crop yield

Answer: Option A

Explanation:

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49. 

World environment day is observed every year on the 5th of

A. June
B. December
C. July
D. September

Answer: Option A

Explanation:

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50. 

The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is

A. pipe vibrations.
B. cavitation.
C. boundary layer separation.
D. fluctuation in liquid flow.

Answer: Option B

Explanation:

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