Environmental Issues

Sponsor Area

Question
CBSEENBI12001463

In the scrubber in the electrostatic precipitator the gases are passed through :
  • filter
  • lime
  • spray of water
  • both 2 and 3

Solution

D.

both 2 and 3

Sponsor Area

Question
CBSEENBI12001464

Ozone depletion will cause :
  • Forest fire
  • Pneumonia
  • Increased incidence of skin cancer
  • None of these

Solution

C.

Increased incidence of skin cancer

Question
CBSEENBI12001465

The meaning of BOD is :
  • Bacterial oxygen demand
  • Biological optimum density
  • Biochemical oxygen demand
  • Bioorganisation decay

Solution

C.

Biochemical oxygen demand

Question
CBSEENBI12001466

Which of the following pollutants is not produced by exhaust of motor vehicles ?
  • CO
  • Hydrocarbon
  • Fly-ash
  • NO

Solution

C.

Fly-ash