Environmental Engineering SSC JE CE Quiz Booster Quiz-10

The measured pH values of incoming and outgoing water at a water treatment plant are 7.3 and 8.5 respectively. What is the average pH of water, assuming linear variation of pH with time?

A city has a population of 100000 with an average rate of demand of 160 litres per head per day. What is the actual number of filters required if the size of each filter is 9m x 5m? Assume the average filtration rate as 4500 litres per hour per m².

A solution has 100 mg/L NH₃ and 100 mg/L glucose. Calculate theoretical oxygen demand of this solution?

Activated sludge process is an

An appurtenance used to connect high level branch sewer to low level branch sewer is

A method of disinfection of drinking water:

The best method of disposal of refuse to ensure complete destruction of pathogenic bacteria is by

Which of the following is common, when a valve closes suddenly at an end of a pipeline system, and a pressure wave propagates in the pipe?

The gas which is responsible for heart attacks and high mortality rates caused by incomplete combustion of organic matter is

For the sewers of diameter less than 600 mm, the type of joint preferred may be