If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is________________?

Related Mcqs:

The asbestos cement sewers are_________________?

A. Light in weight B. Not structurally strong to bear large compressive stress C. Susceptible to corrosion by sulphuric acid D. All the above...

The rate of accumulation of sludge in septic tanks is recommended as____________________?

A. 30 litres/person/year B. 25 litres/person/year C. 30 litres/person/month D. 25 litres/person/month...

The screens are fixed___________________?

A. Perpendicular to the direction of flow B. Parallel to the direction of flow C. At an angle 30° to 60° to the direction of flow D. None of these...

The presence of free ammonia in sewage, is detected by___________________?

A. Boiling B. Adding potassium permanganate C. Adding sulphuric acid D. Phenol-di-sulphuric acid...

For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of___________________?

A. 100 cm B. 120 cm C. 140 cm D. 160 cm...