In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time?

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...

Self-cleansing velocity is__________________?

A. Velocity at dry weather flow B. Velocity of water at flushing C. Velocity at which no accumulation remains in the drains D. Velocity of water in a pressure filter...

Design period of 40 to 50 years is adopted for_________________?

A. Branch sewers B. Main sewers C. Trunk sewers D. All the above...

The small sewers are cleaned by____________________?

A. Flushing B. Cane rodding C. Wooden pills D. None of these...

Pick up the correct statement from the following ?

A. Turbidity is more in strong sewage B. The black colour indicates septic sewage C. The sewage omits offensive odours after four hours D. All the above...