A. use of metering system
B. good quality of water
C. better standard of living of the people
D. hotter climate
Related Mcqs:
- If Biochemical oxygen demand (BOD. of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is_________________?
A. 1000
B. 4000
C. 100000
D. 400000 - Average rate of water consumption perhead per day as per Indian Standard is______________?
A. 100 litres
B. 135 litres
C. 165 litres
D. 200 litres - Assertion A : The consumption of water increases with increase in the distribution pressure. Reason R : Higher distribution pressure causes more loss and waste of water. Select your answer according to the coding system given below?
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true - The per capital consumption of a locality is affected by_________________?
1) climatic conditions
2) quality of water
3) distribution pressure
The correct answer is?A. only (1)
B. both (1) and (2)
C. both (1) and (3)
D. all (1), (2) and (3) - If the average daily consumption of a city is 100,000 m3, the maximum daily con¬sumption on peak hourly demand will be_______________?
A. 100000m3
B. 150000m3
C. 180000m3
D. 270000 m3 - The rate of filtration in slow sand filters in million litres per day per hectare is about_____________?
A. 50 to 60
B. 100 to 150
C. 500 to 600
D. 1400 to 1500 - Alkalinity in water is expressed as milli-grams per litre in terms of equivalent_______________?
A. calcium carbonate
B. magnesium carbonate
C. sodium carbonate
D. calcium hydroxide - Which of the following retards the self purification of stream ?
A. higher temperature
B. sunlight
C. satisfying oxygen demand
D. none of the above - Which of the following compounds is widely used for algae control ?
A. sodium sulphate
B. copper sulphate
C. sodium chloride
D. calcium chloride - Which of the following values of pH represents a stronger acid?
A. 2
B. 5
C. 7
D. 10
