Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 5 5000 2000 50 5 5000 2000 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In a sedimentation tank, the detention period for water ranges from __________ hours. 2 to 4 16 to 20 8 to 12 24 to 32 2 to 4 16 to 20 8 to 12 24 to 32 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present as pollutant in water can not be removed by Oxidation followed by settling & filtration Chlorination Ion exchange process Lime soda process or manganese zeolite process Oxidation followed by settling & filtration Chlorination Ion exchange process Lime soda process or manganese zeolite process ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Parasitic Aerobic Anaerobic Saphrophytic Parasitic Aerobic Anaerobic Saphrophytic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect? CO₂ SO₃ H₂ N₂ CO₂ SO₃ H₂ N₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Its dissolved oxygen content Foaming from boilers Caustic embrittlement Its silica content Its dissolved oxygen content Foaming from boilers Caustic embrittlement Its silica content ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS