The population of a new city is 5 million and is growing at 20% annually. How many years would it take to double at this growth rate?
3-4 years
Annual compound growth gives 1.2ᵗ=2, so t=ln2/ln1.2≈3.80 years. The doubling time lies between 3 and 4 years.
Important Questions from Water Supply
For distribution of water the main pipe line runs through the centre of the populated area, sub-mains take-off from it to both sides, which divide into several branch lines. This is a:
- Which joint is used for AC (Asbestos cement) pipes?
The design period for the design of a water supply project generally takes as:
As per IS 1172:1993, the minimum domestic water consumption for drinking usage in LPCD
If the annual average daily water consumption of a city is 48000 cubic meters, what will be the maximum hourly demand of the maximum day (Peak demand)?
