WorksheetsDay 67-Dec 1-Btech-worksheet-Water demand
Total questions: 15
Worksheet time: 10mins
According to GOI Manual, the domestic water consumption for higher income groups ranges between —
50–100 lpcd
90–150 lpcd
135–225 lpcd
250–350 lpcd
Industrial water demand in normal industrial towns is typically —
10 lpcd
20 lpcd
50 lpcd
100 lpcd
Public purposes such as road washing and parks generally consume —
Not exceeding 5%
Not exceeding 10%
Not exceeding 15%
Not exceeding 20%
Maximum water losses in a typical water supply system are generally —
5%
10%
15%
25%
According to Kuichling’s formula, fire demand (in L/min) is —
3182 P
5663 P
4640 P
7000 P
According to IS 1172:1993, domestic water demand for fully flushing systems is 200 lpcd. Choose True or False.
True
False
Assertion: Industrial towns require higher per capita water demand. Reason: Many industries such as paper mills require very high water quantities per ton of production. Choose the correct option.
A and R true; R correct explanation
A and R true; R not correct explanation
A true, R false
A false, R true
Required hydrant pressure for fire fighting is 100–150 kN/m².
True
False
Theft and losses in water supply systems are generally about (a) %.
Annual per capita demand = total yearly demand / ( (a) × 365).
For cities with population < 50,000, the peak factor is ______.
2
2.5
3
3.5
For small towns and villages, typical domestic water demand recommended is ______ lpcd.
50
60
70
90
A town has a population of 25,000. Domestic water requirement is 135 lpcd. Calculate the total daily domestic demand.
(a)
Using Kuichling’s formula , estimate the fire demand for a population of 0.40 lakhs. Express the answer in L/min.
(a)
Average daily demand = 4 MLD. For population < 50,000, peak factor = 3. Find the maximum daily demand.
(a)
