Environmental Engineering The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is Sluice valve Reflux valve Pressure relief valve Air relief valve Sluice valve Reflux valve Pressure relief valve Air relief valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The design discharge for the combined sewer system shall be taken as Equal to rainfall Rainfall + 2 DWF Rainfall + DWF Rainfall + 6 DWF Equal to rainfall Rainfall + 2 DWF Rainfall + DWF Rainfall + 6 DWF ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alum as a coagulant is found to be most effective when pH range of water is 4 to 6 8 to 10 2 to 4 6 to 8 4 to 6 8 to 10 2 to 4 6 to 8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is Smaller Same Larger None of these Smaller Same Larger None of these 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 Separate system Partially separate system Partially combined system Combined system Separate system Partially separate system Partially combined system Combined system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Dissolved oxygen in streams is Minimum at noon Maximum at midnight Maximum at noon Same throughout the day Minimum at noon Maximum at midnight Maximum at noon Same throughout the day ANSWER DOWNLOAD EXAMIANS APP
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