Environmental Engineering in CE Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? Acetylene Ammonia Hydrogen Carbon monoxide Acetylene Ammonia Hydrogen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Coagulation Irradiation of water by ultraviolet light Chlorine Cation exchanger Coagulation Irradiation of water by ultraviolet light Chlorine Cation exchanger ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Global warming may result in All of these Decrease in food productivity Flood Cyclone All of these Decrease in food productivity Flood Cyclone 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. 60 120 20 90 60 120 20 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. 120 80 25 50 120 80 25 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fresh sewage is __________ in nature. Neutral Acidic Alkaline Highly acidic Neutral Acidic Alkaline Highly acidic ANSWER DOWNLOAD EXAMIANS APP
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