# CONSTRUCTION OF FLOW MASS CURVE:

## THEORY:

A graph of cumulative value of any hydrological quantity generally as an ordinal plotted against time is known as hydrology . The mass curve may be caused as a flow mass curve or simply a mass curve. It is the integration of hydrography from one time to another.

Where,

U(t)= cumulative vol. Of flow upto time

g(I)= The discharge as a function of time

T= Variable

The unit of flow mass curve is a million meter cube (mm3). Mass curve is also known as ripple curve or ripple diagram.

It is used to solve the river’s problems of determining the  maximum demand rate that can be maintained by given storage volume mass.

PROBLEM NO.1

Draw a mass of given two years monthly runoff  of a river and determine the avg supply .

CALCULATION:

=(611-58)/24-0

= 21.91mm3

RESULT:

A mass curve of given two years I and II monthly runoff of a river into the reservoir in cumulative runoff. Monthly was plotted in graph and hence, the average supply to water wawa 21.91.

CONCLUSION:

Hence, the flow mass curve was constructed by the graph of given two year data.

## 10. MEASUREMENT OF MOISTURE CONTENT IN MUNICIPAL SOLID WASTE (RESIDENTIAL SOLID WASTE).

REQUIREMENTS: Soil waste Oven Weighing machine Gloves Masks THEORY: The percent moisture of the MSW sample is determined…

## 15. STUDY ON THE QUALITY MONITORING TECHNIQUE FOR WATER ENVIRONMENT

WATER QUALITY MONITORING: Sampling refers to the process of selecting a portion of the population to represent the… ## ANALYSIS OF HUMAN POPULATION COMPOSITION BY SEX AND AGE USING POPULATION CENSUS DATA OF NEPAL

REQUIREMENTS: Census data published by central area of statistics  Graph Calcukator THEORY: Population is a group of similar…