Ionisation potential employed in the industrial electrostatic precipitator is of the order of_______________?

Related Mcqs:

Ringelmann chart No. 2 corresponds to _______________ percent black smoke?

A. 10 B. 20 C. 40 D. 80...

In a sedimentation tank, the detention period for water ranges from _____________ hours?

A. 2 to 4 B. 8 to 12 C. 16 to 20 D. 24 to 32...

Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air’s water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes_________________?

A. Poor visibility due to sky darkening B. Irritation in eyes C. Respiratory trouble D. All A., B. and C....

Pick out the wrong statement?

A. Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions B. Inhalation of pollutant carbon monoxide results in death by asphyxiation C. Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles D. Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in … Pick out the wrong statement?Read More...

BOD of raw municipal sewage may be in the range of about _____________ mg/litre?

A. 1-2 B. 5-10 C. 150-300 D. 2000-3000...