Presence of _____________ bacteria in water causes disease like typhoid?

Related Mcqs:

Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about _______________ decibels?

A. 105 B. 135 C. 160 D. 185...

Out of the following, TLV of _______________ is maximum (about 500 ppm)?

A. Carbon dioxide B. Toluene C. Carbon disulphide D. Acetaldehyde...

World’s worst radioactive pollution was caused by nuclear reactor disaster which occured in ___________________?

A. Arizona (U.S.A.) B. Chernobyl (undivided U.S.S.R.) C. Pennsylvania (U.S.A.) D. Moscow (U.S.S.R.)...

Ozone is__________________?

A. A primary pollutant B. A secondary pollutant C. Impervious to ultra-violet rays D. Both B. and C....

Pick out the one which is not a chemical coagulant ?

A. Aluminium sulphate B. Ferrous sulphate C. Hydrated lime D. Chloramine...