Environmental Engineering in CE A man exposed to excessive noise level in the working environment may suffer from All of these Nervousness & fatigue Rupture of ear drum Hearing loss All of these Nervousness & fatigue Rupture of ear drum Hearing loss ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Permissible safe limit (TLV) of __________ toxic gas is 100-1000 parts per million (ppm). Moderately Very extremely Highly Extremely Moderately Very extremely Highly Extremely ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 9 to 10 1 to 2 15 to 20 4 to 5 9 to 10 1 to 2 15 to 20 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 1000 2000 50 5000 1000 2000 50 5000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Cleaning is done by(i) Scraping and removal in filters slow sand(ii) Back washing in slow sand filters(iii) Scraping and removal in filters rapid sand(iv) Back washing in rapid sand filtersThe correct answer is (ii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) (ii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Growth of __________ is promoted by the presence of manganese in water. Micro-organisms Algae Mosquitoes Files Micro-organisms Algae Mosquitoes Files ANSWER DOWNLOAD EXAMIANS APP
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