Question 1 : What is the design period for the water treatment unit?
1. 10 years
2. 15 years
3. 20 years
4. 30 years
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Question 2 : What is the expression used for population forecasting by the geometrical increase method?
1. PO (1 + R/100)ⁿ
2. PO + n*x
3. PO + n*x + (n (n+1) /2 ) *y
4. PO – n*x
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Question 3 : Which is the correct statement regarding per capita demand?
1. Daily water required by an individual
2. Water required for various purposes by a person
3. Water required by an individual in a year
4. Annual average amount of daily water required by one person
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Question 4 : Match list 1(calculation of fire demand) with list 2 (formulae) and select the correct answer using the codes given below.

List 1	List 2
A. Kuchling's Formula	1) Q = 3182√P
B. Freeman's Formula	2) Q = 1136[P/5 +10]
C. Buston's Formula	3) Q = 5663√P
D. Central Congested High Value City	4) Q = 4637√P[1-.01√P]

where Q = quantity of water, P = population in thousands

   CODE
   A
1. 1 2 3 4
2. 2 3 4 1
3. 2 1 4 3
4. 1 2 4 3
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Question 5 : Which method of population forecast combines both arithmetical increase and geometrical increase method?
1. Arithmetical increase method
2. Geometrical increase method
3. Incremental increase method
4. Decreased rate of growth method
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Question 6 : Which method of population forecast is suitable when extension is required for small duration and past record is available for long duration?
1. Graphical comparison method
2. Graphical extension method
3. Logistic curve method
4. Zoning method
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Question 7 : In which method of population forecasting, increase in population from decade to decade is assumed constant?
1. Arithmetical increase method
2. Geometrical increase method
3. Incremental increase method
4. Decreased rate of growth method
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Question 8 : What are the factors affecting per capita demand?
1. Size of city
2. Size of city, habit of people
3. Cost of water, quality of water, size of city
4. Cost of water, quality of water, size of city, habit of people
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Question 9 : Which method is suitable if the growth rate is decreasing and population is reaching towards saturation?
1. Arithmetical increase method
2. Graphical comparison method
3. Zoning method
4. Decreased rate of growth method
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Question 10 : In which of the following units, design period is maximized?
1. Distribution system
2. Demand reservoir
3. Water treatment unit
4. Pipe mains
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