The most dangerous pollutant in vehicular emissions is____________________?

Related Mcqs:

No treatment of the sewage is given if dilution factor is_____________?

A. Less than 150 B. Between 150 to 200 C. Between 200 to 300 D. More than 500...

are available in size Stoneware sewers________________?

A. 10 cm B. 15 cm C. 20 cm D. All the above...

Ventilating shafts are provided to a sewer line at every__________________?

A. 100 m B. 150 m C. 200 m D. 300 m...

The gas evolved in sewers is________________?

A. Carbondioxide B. Hydrogen sulphide C. Methane D. All of these...

Pick up the correct statement from the following?

A. pH value indicates acidity and alkalinity of sewage B. In acidic sewage, the pH value is less than 7 C. In alkaline sewage, the pH value is more than 7 D. All the above...