WorksheetsCivilwar-Day 18-Oct 14-PWD-Water demand& population forecasting
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The population of a city in the first three consecutive years is given as 6000, 8000 and 10000 respectively. What is the population of the city in the fourth continuous year, according to the geometric increase method?
a)
11500
b)
12000
c)
12900
d)
14000
2.
Population is 1,00,000. The average water consumption is 200 lpcd. The capacity of distribution system is (Take fire demand 61 MLD)
a)
54 MLD
b)
61 MLD
c)
81 MLD
d)
36 MLD
3.
The distribution mains are designed for
a)
Maximum daily demand
b)
Maximum hourly demand
c)
Average daily demand
d)
Maximum hourly demand of maximum day
4.
As compared to geometrical increase method of forecasting population, the arithmetical increase method gives
a)
Lesser value
b)
Higher value
c)
Equal value
d)
May vary as it may depend on the population figures
5.
A water lost in theft and waste contribute to how much percentage of total consumption
a)
5
b)
10
c)
15
d)
20
6.
The average consumption of water required in factories in lpcd is .....................
a)
20–30
b)
30–45
c)
10–15
d)
70–80
7.
Consider the following statements
1. The arithmetical increase method is suitable for new cities.
2. The decreasing growth rate method is used where the rate of growth shows a downward pattern.
3. The geometrical increase method is used for older cities.
Which of the following above statements is/are correct?
a)
1,2,3
b)
1 and 3
c)
Only 2
d)
2 and 3
8.
Compute the 'fire demand' for a city of 2 lac population by Freeman's formula
a)
80 MLD
b)
49.07 MLD
c)
64.58 MLD
d)
102.84 MLD
9.
The population of a city at previous consecutive census years was 400000, 558500, 776000 and 1098500. The anticipated population at the next census to the nearest 10000 by Arithmetical increase method would be
a)
1340000
b)
507900
c)
676000
d)
101400
10.
If the average daily water consumption of a city is 24,000,000 liters per day, peak hourly demand will be
a)
1000 cu m/hr
b)
1500 cu m/hr
c)
1800 cu m/hr
d)
2700 cu m/hr
100 %
