Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) 2B B 4B 8B 2B B 4B 8B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram) 90 750 10 800 90 750 10 800 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the Both B and C Global warming Green house effect Catalytic conversion Both B and C Global warming Green house effect Catalytic conversion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes Blood poisoning Anaemia All of these Nervous system disorder Blood poisoning Anaemia All of these Nervous system disorder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum CO₂ is emitted into the atmosphere by Trees Urea Biomass burning Combustion Trees Urea Biomass burning Combustion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagoons used for purification of polluted water Use micro-organisms/bacteria in presence of dissolved oxygen All of these Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre Use micro-organisms/bacteria in presence of dissolved oxygen All of these Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre ANSWER DOWNLOAD EXAMIANS APP
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