Test: Diffused Air System
5 Questions MCQ Test Environmental Engineering - Notes, Videos, MCQs & PPTs | Test: Diffused Air System
Which of the following is called as air diffusion method?
Explanation: Diffused air aeration method is also called as air diffusion method where diffused air aerators are used for diffusing the air in the aeration tank.
The maximum quantity of air required in diffused aerator is ______ m3 per million litres of sewage.
Explanation: The minimum and maximum quantity of air required in diffused aerator is 6000 and 8000 m3 respectively per million litres of sewage.
The effective area of the diffuser plate used in the aeration tank is
Explanation: Diffuser plates are provided at the bottom of the aeration tank . It is square in shape with the dimension of 30cm x 30cm.
The maximum depth of aeration tank used in activated sludge process is
Explanation: The depth of aeration tank lies between 3 to 4.5m and is 4-6m wide.
Which device is used in the aeration tank for cleaning purposes?
Explanation: Tube diffuser is suspended in the aeration tank and can be used for cleaning without emptying the tank.
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