11.8.2021

Which of the following causes a decrease in per capita consumption?

• Use of metering system
• Good quality of water
• Better standard of living of the people
• Hotter climate

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

• Both A and R is true and R is the correct explanation of A
• Both A and R is true but R is not the correct explanation of A
• A is true but R is false
• A is false but R is true

The depression of water table in a well due to pumping will be maximum _____. (Where 'R' is the radius of influence)

• At a distance R from the well
• Close to the well
• At a distance R/2 from the well
• None of the above

Ground water is usually free from _____.

• Suspended impurities
• Dissolved impurities
• Both suspended and dissolved impurities
• None of the above

The per capital consumption of a locality is affected by _____. 1. Climatic conditions 2. Quality of water 3. Distribution pressure The correct answer is _____.

• Only 1
• Both 1 and 2
• Both 1 and 3
• All 1, 2 and

Select the correct relationship between porosity (𝜂), specific yield (𝑦) and specific retention (𝑟)

• 𝜂 = 𝑦 + 𝑟
• 𝑦 = 𝜂 + 𝑟
• 𝑟 = 𝜂 + 𝑦
• 𝑟 > (𝜂 + 𝑦)

The hourly variation factor is usually taken as _____.

• 1.5
• 1.8
• 2
• 2.7

The maximum discharge of a tube well is about _____.

• 5 liters/sec
• 50 liters/sec
• 500 liters/sec
• 1000 liters/sec

Hardy cross method of analysis of distribution system _____. 1. Involves successive trials 2. Takes economic aspects into account 3. Is time consuming. The correct answer is _____.

• Only 1
• 1 and 2
• 1 and 3
• All options are correct

Average rate of water consumption per head per day as per Indian Standard is _____.

• 100 liters
• 135 liters
• 165 liters
• 200 liters