Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is To increase it Nil To decrease it Fluctuating To increase it Nil To decrease it Fluctuating ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering 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 Only (i) Both (i) and (iii) Only (iii) Both (i) and (ii) Only (i) Both (i) and (iii) Only (iii) Both (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Air binding phenomena in rapid sand filters occur due to Mud ball formation Excessive negative head Low temperature Higher turbidity in the effluent Mud ball formation Excessive negative head Low temperature Higher turbidity in the effluent ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of 1000 mg/liter 100 mg/liter 10 mg/liter 1 mg/liter 1000 mg/liter 100 mg/liter 10 mg/liter 1 mg/liter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is 9800 9500 10920 10100 9800 9500 10920 10100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on Surface area of tank None of these Both depth and surface area of tank Depth of tank Surface area of tank None of these Both depth and surface area of tank Depth of tank ANSWER DOWNLOAD EXAMIANS APP
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