Environmental Engineering in CE Which of the following is a secondary air pollutant? Photochemical smog Nitrogen dioxide Sulphur dioxide Dust particles Photochemical smog Nitrogen dioxide Sulphur dioxide Dust particles ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Water filtration rate in a rapid sand filter ranges from __________ kilolitres/m²/hr. 0.1 to 1 15 to 20 10 to 15 3 to 6 0.1 to 1 15 to 20 10 to 15 3 to 6 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The widest explosive limit is of __________ , thereby making it the most explosive gas. Acetylene Carbon monoxide Hydrogen Petrol vapor Acetylene Carbon monoxide Hydrogen Petrol vapor ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Smoke is produced due to All of these Poor quality of fuel and improper mixing of fuel & combustion air Poor design & overloading of furnace Insufficient supply of combustion air and insufficient time for combustion All of these Poor quality of fuel and improper mixing of fuel & combustion air Poor design & overloading of furnace Insufficient supply of combustion air and insufficient time for combustion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to Both A & B Shear forces Neither A nor B Reynold stresses Both A & B Shear forces Neither A nor B Reynold stresses ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes Depletion of dissolved oxygen Fire hazards Persistent foam Explosion hazards Depletion of dissolved oxygen Fire hazards Persistent foam Explosion hazards ANSWER DOWNLOAD EXAMIANS APP
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