Environmental Engineering in CE Insufficient washing of sand grains in a rapid sand filter causes Shrinkage of filtering media Expansion of filtering media Air binding Mud balls Shrinkage of filtering media Expansion of filtering media Air binding Mud balls ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The disinfection efficiency of chlorine increases by(i) Decreasing the time of contact(ii) Decreasing the temperature of water(iii) Increasing the temperature of water Both (i) and (ii) Both (i) and (iii) Only (iii) Only (i) Both (i) and (ii) Both (i) and (iii) Only (iii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? Benzene hexachloride Chlorine Alkalis Alkyl benzene sulphonate (ABS) Benzene hexachloride Chlorine Alkalis Alkyl benzene sulphonate (ABS) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 5 50 2000 5000 5 50 2000 5000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In large thermal power stations very fine particulates present in flue gas are removed by Bag filter Electrostatic precipitators Dust catcher Wet scrubber Bag filter Electrostatic precipitators Dust catcher Wet scrubber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is the process of killing organism in water. Sedimentation Coagulation Disinfection Sterilisation Sedimentation Coagulation Disinfection Sterilisation ANSWER DOWNLOAD EXAMIANS APP
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