Back washing of rapid gravity filters, may face rough weather, due to:
AAir binding
BMud-balls
CNegative head
DChecking of filters
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The structure which is constructed to connect a high level branch sewer to a low level main sewer with minimum disturbance is called
The phenomenon by virtue of which a soil is clogged with sewage matter, is called:
The growth of algae is useful in:
Which of the following has minimum detention period
The organic impurities in water form a layer on the top of the filtering media. Such a layer called: