Environmental Engineering The layout of distribution system in which water flows towards the outer periphery is Dead end system Ring system Grid iron system Radial system Dead end system Ring system Grid iron system Radial system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/hour 15 to 30 cm/minute 15 to 30 cm/sec 5 to 10 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 15 to 30 cm/sec 5 to 10 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For a country like India, where rainfall is mainly confined to one season, the suitable sewerage system will be Partially separate system Separate system Combined system Partially combined system Partially separate system Separate system Combined system Partially combined system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alum as a coagulant is found to be most effective when pH range of water is 6 to 8 2 to 4 8 to 10 4 to 6 6 to 8 2 to 4 8 to 10 4 to 6 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 100 mg/liter 1 mg/liter 10 mg/liter 1000 mg/liter 100 mg/liter 1 mg/liter 10 mg/liter 1000 mg/liter 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
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