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Water-and-waste-water Questions Set 40:

Quiz Mode

The present population of a city is 8000 if it increases by 10% during the first year and by 20% during the second year , then population after two years will be

12400

14400

10560

None of these

Solution:

The population of a town increases at a certain rate per annum. The present population of the town is 3600. If the population after 5 years is 4800, then find the population after 10 years?

5000

6000

6400

7000

Solution:

In which method of population forecasting, an increase in population from decade to decade is assumed constant?

Arithmetical increase method

Geometrical increase method

Incremental increase method

Decreased rate of growth method

Solution:

In which method of population forecast, percentage increase in population from decade to decade is assumed constant?

Arithmetical increase method

Geometrical increase method

Incremental increase method

Decreased rate of growth method

Solution:

In which method of determining total hardness of water is based on the premise that hardness producing substance react with soap and form insoluble compounds before lather is produced?

Clark’s method

Hehner’s method

Versenate method

EDTA method

Solution:

In the 2001 census, the population of India was found to be 8.7×10⁷. If the population increases at the rate of 2.5% every year, what would be population in 2011? The population of India in 2011 is k×10⁷, then what is k? _______[rounded off upto two decimal places].

Solution:

What is the fire demand in litres per head for a city of 25,00,000 population for a moderate fire to last for 3 hours requiring 3 streams with a discharge of 1100 liters per minute and the provision for 4 fires at a time is _______ [rounded off upto two decimal places].

Solution:

Which of the following statement is wrong regarding permanent hardness?

It is also called carbonate hardness

It is due to the presence of sulfates, chlorides and nitrates of calcium and magnesium

It cannot be removed by boiling

It requires special methods of water softening to get removed

Solution:

Consider the following statements.
i. The arithmetical increase method is suitable for new cities
ii. The decreasing growth rate method is used where the rate of
growth shows a downward pattern
iii. The geometrical increase method is used for older cities
Which of the following above statements is/are correct?

i, ii, iii

i and iii

Only ii

ii and iii

Solution:

The present population of a community is 28000 with an average water demand of 150 Lpcd. The existing water treatment plant has a design capacity of 6000 m3/d. It is expected that the population will increase to 48000 during the next 20 years. What is the number of years from now when the plant will reach its design capacity assuming an arithmetic rate of population growth?

16.5 years

15.0 years

8.6 years

12.0 years

Water-and-waste-water Questions Set 40:

The present population of a city is 8000 if it increases by 10% during the first year and by 20% during the second year , then population after two years will be

Solution:

The population of a town increases at a certain rate per annum. The present population of the town is 3600. If the population after 5 years is 4800, then find the population after 10 years?

Solution:

In which method of population forecasting, an increase in population from decade to decade is assumed constant?

Solution:

In which method of population forecast, percentage increase in population from decade to decade is assumed constant?

Solution:

In which method of determining total hardness of water is based on the premise that hardness producing substance react with soap and form insoluble compounds before lather is produced?

Solution:

In the 2001 census, the population of India was found to be 8.7×10⁷. If the population increases at the rate of 2.5% every year, what would be population in 2011? The population of India in 2011 is k×10⁷, then what is k? _______[rounded off upto two decimal places].

Solution:

What is the fire demand in litres per head for a city of 25,00,000 population for a moderate fire to last for 3 hours requiring 3 streams with a discharge of 1100 liters per minute and the provision for 4 fires at a time is _______ [rounded off upto two decimal places].

Solution:

Which of the following statement is wrong regarding permanent hardness?

Solution:

Solution:

Solution:

Related Question Sets:

Related Topics:

Water-and-waste-water Questions Set 40:

The present population of a city is 8000 if it increases by 10% during the first year and by 20% during the second year , then population after two years will be

Solution:

The population of a town increases at a certain rate per annum. The present population of the town is 3600. If the population after 5 years is 4800, then find the population after 10 years?

Solution:

In which method of population forecasting, an increase in population from decade to decade is assumed constant?

Solution:

In which method of population forecast, percentage increase in population from decade to decade is assumed constant?

Solution:

In which method of determining total hardness of water is based on the premise that hardness producing substance react with soap and form insoluble compounds before lather is produced?

Solution:

In the 2001 census, the population of India was found to be 8.7×107. If the population increases at the rate of 2.5% every year, what would be population in 2011? The population of India in 2011 is k×107, then what is k? _______[rounded off upto two decimal places].

Solution:

What is the fire demand in litres per head for a city of 25,00,000 population for a moderate fire to last for 3 hours requiring 3 streams with a discharge of 1100 liters per minute and the provision for 4 fires at a time is _______ [rounded off upto two decimal places].

Solution:

Which of the following statement is wrong regarding permanent hardness?

Solution:

Solution:

Solution:

Related Question Sets:

Related Topics:

In the 2001 census, the population of India was found to be 8.7×10⁷. If the population increases at the rate of 2.5% every year, what would be population in 2011? The population of India in 2011 is k×10⁷, then what is k? _______[rounded off upto two decimal places].