SEWERAGE SYSTEM - Quiz

1) What should be the minimum diameter of the connecting pipe in the septic tank?

60mm 100mm 300mm 700mm

2) What is the maximum spacing of manhole sewer size upto 0.3 mf?

20 m 30 m 45 m 75 m

3) Which type of pump should be selected in order to pump the sewage from a septic tank to the water treatment system?

Vertical slump pump Progressive cavity pump Centrifugal pump Screw pump

4) How does the intensity of rain is expressed?

cm/minute cm/hour cm/day cm/week

5) Which gas is mainly produced in septic tank?

Oxygen Nitrogen Hydrogen Hydrogen sulphide