TLV of aldrin in public water supply system is about ____________ μg/litre?

Related Mcqs:

In water treatment plant, zeolite process is used to remove the _____________ of water?

A. Acidity B. Alkalinity C. Hardness D. Iron & zinc...

The weakest sound that can be heard by a person in a quiet environment is equivalent to ____________ decibel ?

A. 1 B. 5 C. 10 D. 50...

The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of _____________ of water?

A. Dissolved oxygen content B. Biological oxygen demand C. Vapor pressure D. All A., B. and C....

In troposphere (the weather domain), the temperature ‘t’ at height ‘h’ above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C ?

A. t = 15 – 0.0065h B. t = 15 + 0.0065h C. t = 0.0035h -15 D. t = 15 – 0.0035h...

Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes__________________?

A. Blood poisoning B. Anaemia C. Nervous system disorder D. All A., B. & C....