Environmental Engineering in CE Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million). 1.2 4.8 0.002 0.2 1.2 4.8 0.002 0.2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Lagging of noisy duct Accoustical absorbent Mufflers (silencers) None of these Lagging of noisy duct Accoustical absorbent Mufflers (silencers) None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pick out the wrong statement pertaining to 'green house' for the plants. ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The function of skimming tank in sewage treatment is to remove __________ substances. Dissolved solid Suspended solid Gritty & inorganic Oil & fatty Dissolved solid Suspended solid Gritty & inorganic Oil & fatty ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrogen sulphides Nitrogen dioxide Hydrogen flouride Hydrocarbons Hydrogen sulphides Nitrogen dioxide Hydrogen flouride Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In large thermal power stations very fine particulates present in flue gas are removed by Bag filter Electrostatic precipitators Dust catcher Wet scrubber Bag filter Electrostatic precipitators Dust catcher Wet scrubber ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS