Environmental Engineering In Ce - Study Mode

[#116] Methyl iso-cynate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of __________ toxic gas.
Correct Answer

(D) Very extremely

[#117] Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan
Correct Answer

(C) Both A & B

[#118] Growth of __________ is promoted by the presence of manganese in water.
Correct Answer

(C) Micro-organisms

[#119] The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is
Correct Answer

(B) Cavitation

[#120] Removal of __________ results from the disinfection of water.
Correct Answer

(D) Bacteria