☰ Pollution (Air and Noise) (Civil Engineering) - MCQs

These are four options provided for the answers of the question only one option is right answer. You have to click any of the option to check your answer. You can also directly see the answer from the answer link below. if you want to see explaination of the answer you can click discuss link.
Q1.

What type of noise can be abated by providing lining on walls and ceiling with sound absorbing materials ?

  • A. Source noise
  • B. Reflection noise
  • C. Structural noise
  • D. Direct air -borne noise

    ✍ Discuss    
Q2.

Chlorophyll loss in green plants is called :

  • A. Necrosis
  • B. Chlorosis
  • C. Epinasty
  • D. Abscission

    ✍ Discuss    
Q3.

Chlorophyll loss in green plants is called :

  • A. Necrosis
  • B. Chlorosis
  • C. Epinasty
  • D. Abscission

    ✍ Discuss    
Q4.

Killing of tissue from air pollutants is called :

  • A. Necrosis
  • B. Chlorosis
  • C. Abscission
  • D. Epinasty

    ✍ Discuss    
Q5.

Epinasty in leaves is due to :

  • A. downward curvature of leaves
  • B. killing of tissues
  • C. loss of chlorophyll
  • D. all of the above

    ✍ Discuss    
Q6.

Carbon monoxide has more affinity with haemoglobin than oxygen for about :

  • A. 2000 times
  • B. 100 times
  • C. 200 times
  • D. 20 times

    ✍ Discuss