Question

What are the method of population for casting ?

Answer 1

 

Population is one of the most important factors for design of the water systems, so it should be estimated, so as to know the increasing demand and ensure continuous supply to them. Population data is obtained by previous records and the rate of increase is found out and this used for further analysis, which may be by using the methods described below

Arithmetic growth methodGeometric growth methodCurvilinear methodLogistic methodDecline growth methodRatio growth

Arithmetic growth method:

It is based on the assumption that the rate of growth of population is constant. It means that the each year population increase by the same increment.