Environmental Engineering For a given discharge, the efficiency of sedimentation tank can be increased by Decreasing the surface area of tank Increasing the surface area of tank Decreasing the depth of tank Increasing the depth of tank Decreasing the surface area of tank Increasing the surface area of tank Decreasing the depth of tank Increasing the depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of BOD exerted at any time is Inversely proportional to BOD satisfied Inversely proportional to BOD remaining Directly proportional to BOD remaining Directly proportional to BOD satisfied Inversely proportional to BOD satisfied Inversely proportional to BOD remaining Directly proportional to BOD remaining Directly proportional to BOD satisfied ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Dissolved oxygen in streams is Same throughout the day Maximum at noon Minimum at noon Maximum at midnight Same throughout the day Maximum at noon Minimum at noon Maximum at midnight ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is Air relief valve Pressure relief valve Sluice valve Reflux valve Air relief valve Pressure relief valve Sluice valve Reflux valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Facultative bacteria are able to work in Presence as well as in absence of oxygen Absence of oxygen only Presence of water Presence of oxygen only Presence as well as in absence of oxygen Absence of oxygen only Presence of water Presence of oxygen only 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 10 mg/liter 1 mg/liter 1000 mg/liter 100 mg/liter 10 mg/liter 1 mg/liter 1000 mg/liter 100 mg/liter ANSWER DOWNLOAD EXAMIANS APP
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