Raw Water Sources and Quantity Estimation

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Questions and Answers

What are the two categories into which water sources can be classified?

  • Freshwater and Saltwater
  • Urban and Rural
  • Primary and Secondary
  • Surface and Sub-surface (correct)

How is the quantity of water required for municipal uses calculated?

  • Per Capita Demand - Population
  • Per Capita Demand x Population (correct)
  • Population + Per Capita Demand
  • Population / Per Capita Demand

Which of the following is NOT a type of water consumption for a city?

  • Industrial and Commercial Demand
  • Domestic Consumption
  • Agricultural Demand (correct)
  • Public Uses including Fire Demand

What is the normal range of Domestic Consumption in liters per capita per day?

<p>50-250 (A)</p> Signup and view all the answers

What is the average percentage of Industrial and Commercial Demand compared to normal range consumption?

<p>75% (C)</p> Signup and view all the answers

Which type of demand has very low per capita but a high rate of water requirement?

<p>Public Uses including Fire Demand (A)</p> Signup and view all the answers

What is the population forecast for the year 1981 using the Arithmetic Progression Method?

<p>128.57 thousand (C)</p> Signup and view all the answers

How is the average increase per decade calculated in the Arithmetical Progression Method?

<p>By dividing the total population increase by the number of decades (B)</p> Signup and view all the answers

Using the Incremental Increase Method, what is the population forecast for the year 2001?

<p>145.71 thousand (B)</p> Signup and view all the answers

In which year is there a decrease in population according to the given data?

<p>1921 (D)</p> Signup and view all the answers

What method involves using the logistic curve to forecast population growth?

<p>Logistic Curve Method (D)</p> Signup and view all the answers

In Population Forecasting, what is the purpose of the Ratio Method?

<p>To predict population changes using ratios (B)</p> Signup and view all the answers

What type of formula does the Ministry of Urban Development Manual Formula represent?

<p>Exponential formula (B)</p> Signup and view all the answers

Which factor does NOT affect per capita water demand according to the text?

<p>Quality of air (C)</p> Signup and view all the answers

What is the formula for Average Daily per Capita Demand according to the text?

<p>$\frac{Quantity Required \text{ in 12 Months}}{365 \times \text{Population}}$ (A)</p> Signup and view all the answers

Which variation causes a peak in water demand during summer according to the text?

<p>Seasonal variation (C)</p> Signup and view all the answers

What determines the design period in a water supply scheme?

<p>Useful life of components, rate of growth, and available resources (D)</p> Signup and view all the answers

What is NOT a method mentioned for population forecasting in the text?

<p>Exponential Increase Method (C)</p> Signup and view all the answers

Why is daily variation important according to the text?

<p>To manage water supply efficiently during different times of the day (C)</p> Signup and view all the answers

Which formula represents Prof. H.K. Mapari's Authority Formula?

<p>$Q=4637 \sqrt{P(1-0.01\sqrt{P})}$ (D)</p> Signup and view all the answers

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