Environmental Engineering in CE Higher concentration of CO₂ in atmosphere Reflects and absorbs the longer wavelength (infra-red) radiations Allows visible solar radiation (ultraviolet) of short wave-length to pass through All of these Prevents solar heat being radiated out completely, resulting in Reflects and absorbs the longer wavelength (infra-red) radiations Allows visible solar radiation (ultraviolet) of short wave-length to pass through All of these Prevents solar heat being radiated out completely, resulting in ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) B 4B 2B 8B B 4B 2B 8B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Aluminium Lead Arsenic Mercury Aluminium Lead Arsenic Mercury ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is the minimum (about 0.02 ppm). MIC (methyl iso-cynate) Phosgene Bromine Ozone MIC (methyl iso-cynate) Phosgene Bromine Ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank (i) and (iii) (i) and (ii) Only (i) Only (iii) (i) and (iii) (i) and (ii) Only (i) Only (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because It forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen Of clotting of blood Of jamming of respiratory tract It forms CO₂ by combining with oxygen present in the blood It forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen Of clotting of blood Of jamming of respiratory tract It forms CO₂ by combining with oxygen present in the blood ANSWER DOWNLOAD EXAMIANS APP
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