Worksheets23/12/25-Civilwar Overseer GRADE 1 -Water Demand
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The ratio of maximum daily consumption to the average daily demand is
a)
1
b)
1.2
c)
1.5
d)
1.8
2.
As per IS 1172 – 1993, domestic water demand ranges between
a)
55 to 75 lpcd
b)
135 to 225 lpcd
c)
135 to 340 lpcd
d)
270 to 340 lpcd
3.
A water supply scheme has to be designed for a population of 1,00,000. The average water consumption is 200 lpcd. Maximum daily draft is (in Mld)
a)
36
b)
20
c)
25
d)
30
4.
The per capita water demand include
a)
Domestic water demand
b)
Domestic and commercial demand
c)
Domestic commercial and industrial demand
d)
Domestic ,commercial ,public and industrial demand
5.
Coincident draft in relation to water demand is based on
a)
Average hourly demand
b)
Peak hourly demand
c)
Max daily + fire demand
d)
Greater of a and c
6.
Per capita water demand for an office is
a)
30
b)
35
c)
45
d)
50
7.
The hourly variation factor is usually taken as
a)
1.5
b)
1.8
c)
2
d)
2.7
8.
What is the minimum water pressure available at fire hydrants
a)
80 to 100 kN per m2
b)
100 to 125 kN per m2
c)
100 to 150 kN per m2
d)
150 to 200 kN per m2
9.
What is the fire demand of the city of 1 lakh population by Buston’s formula
a)
5663
b)
56630
c)
566300
d)
5663000
10.
The pipe mains carrying water from the source to the reservoir are designed for the
a)
Max daily draft
b)
Average daily draft
c)
Maximum hourly draft
d)
Max weekly draft
100 %