Environmental Engineering in CE Presence of iron and manganese in water causes Reduction in its dissolved oxygen content None of these Discoloration of bathroom fixtures Temporary hardness Reduction in its dissolved oxygen content None of these Discoloration of bathroom fixtures Temporary hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. 90 120 20 60 90 120 20 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Its silica content Its dissolved oxygen content Caustic embrittlement Foaming from boilers Its silica content Its dissolved oxygen content Caustic embrittlement Foaming from boilers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? Activated carbon adsorption Chemical coagulation Biological oxidation pond Lagooning Activated carbon adsorption Chemical coagulation Biological oxidation pond Lagooning ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of SO₂ CO₂ CFC (chloro fluoro carbon) Hydrocarbons SO₂ CO₂ CFC (chloro fluoro carbon) Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pick out the wrong statement pertaining to 'green house' for the plants. ANSWER DOWNLOAD EXAMIANS APP
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