Air Pollution MCQ (Multiple Choice Questions) PDF - 58

MCQ 286: When does radiation inversion usually occur ?

1. Day time
2. At night
3. In the morning
4. In the evening

MCQ 287: What percent of earth's surface consists of water?

1. 0.8
2. 0.55
3. 0.708
4. 0.1

MCQ 288: In which compositing method the coarse inert matter is firstly removed?

1. Open window Compositing
2. Machanical Compositing
3. Compositing by tranching
4. Pulverization

MCQ 289: What is the threshold limit value of H₂S?

1. 10ppm
2. 20ppm
3. 30ppm
4. 40ppm

MCQ 290: The solubility of oxygen in water is inversely proportional to

1. Pressure
2. Temperature
3. Carbon dioxide
4. Oxygen