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? Hydrogen Ammonia Acetylene Carbon monoxide Hydrogen Ammonia Acetylene Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of a certain minimum quantity of flourine is desirable in potable water to prevent Corrosion Dental cavities Water-borne disease Scale formation Corrosion Dental cavities Water-borne disease Scale formation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE H₂S present in gaseous stream can be removed by adsorption on Active carbon Bog iron Silica gel Limestone powder Active carbon Bog iron Silica gel Limestone powder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10⁵ 10⁹ 10² 10¹⁵ 10⁵ 10⁹ 10² 10¹⁵ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Tooth decay Asphyxiation Gastroentetitis Mathenoglobenemia Tooth decay Asphyxiation Gastroentetitis Mathenoglobenemia ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Growth of __________ is promoted by the presence of manganese in water. Micro-organisms Files Mosquitoes Algae Micro-organisms Files Mosquitoes Algae ANSWER DOWNLOAD EXAMIANS APP
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