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In cities, water from an overhead tank is supplied to houses using the principle of
(i) difference in pressure.
(ii) gravitational force.
(iii) decrease of friction m pipes.
(i) difference in pressure.
(ii) gravitational force.
(iii) decrease of friction m pipes.
- a)Only (i)
- b)Only (i) and (ii)
- c)Only (ii) and (iii)
- d)(i), (ii) and (iii)
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
In cities, water from an overhead tank is supplied to houses using the...
The water at a height flows down due to pressure and gravitational force.
This question is part of UPSC exam. View all Class 8 courses
Most Upvoted Answer
In cities, water from an overhead tank is supplied to houses using the...
Explanation:
The correct answer is option (B) which states that the principle used to supply water from an overhead tank to houses in cities is the difference in pressure and gravitational force.
Principle of Difference in Pressure:
The water supply system in cities typically involves an overhead tank or a water tower that stores a large amount of water at a certain height. This height creates a pressure difference between the water in the tank and the houses connected to it.
When a tap is opened in a house, the water flows out due to the difference in pressure. The pressure in the overhead tank is higher than the pressure in the pipes and taps of the house. This pressure difference allows the water to flow from the tank to the house.
Principle of Gravitational Force:
The water in the overhead tank has gravitational potential energy due to its height. When a tap is opened in a house, the water flows down from the tank to the tap under the influence of gravity. The gravitational force pulls the water downwards, causing it to flow through the pipes and reach the house.
Gravity acts as a driving force for the water to move from the higher level of the tank to the lower level of the tap. The height of the water in the tank determines the potential energy and the amount of gravitational force acting on the water.
Combination of Difference in Pressure and Gravitational Force:
The combination of the pressure difference and gravitational force allows for a continuous flow of water from the overhead tank to the houses in cities. The pressure difference provides the initial push for the water to start flowing, while gravity ensures a steady and continuous flow.
The decrease in friction in the pipes (mentioned in option (iii)) is not the main principle used to supply water from an overhead tank to houses in cities. Although frictional losses are minimized through the use of smooth pipes, the primary driving forces are the pressure difference and gravitational force.
Therefore, the correct answer is option (B) - only the principles of difference in pressure and gravitational force are involved in supplying water from an overhead tank to houses in cities.
The correct answer is option (B) which states that the principle used to supply water from an overhead tank to houses in cities is the difference in pressure and gravitational force.
Principle of Difference in Pressure:
The water supply system in cities typically involves an overhead tank or a water tower that stores a large amount of water at a certain height. This height creates a pressure difference between the water in the tank and the houses connected to it.
When a tap is opened in a house, the water flows out due to the difference in pressure. The pressure in the overhead tank is higher than the pressure in the pipes and taps of the house. This pressure difference allows the water to flow from the tank to the house.
Principle of Gravitational Force:
The water in the overhead tank has gravitational potential energy due to its height. When a tap is opened in a house, the water flows down from the tank to the tap under the influence of gravity. The gravitational force pulls the water downwards, causing it to flow through the pipes and reach the house.
Gravity acts as a driving force for the water to move from the higher level of the tank to the lower level of the tap. The height of the water in the tank determines the potential energy and the amount of gravitational force acting on the water.
Combination of Difference in Pressure and Gravitational Force:
The combination of the pressure difference and gravitational force allows for a continuous flow of water from the overhead tank to the houses in cities. The pressure difference provides the initial push for the water to start flowing, while gravity ensures a steady and continuous flow.
The decrease in friction in the pipes (mentioned in option (iii)) is not the main principle used to supply water from an overhead tank to houses in cities. Although frictional losses are minimized through the use of smooth pipes, the primary driving forces are the pressure difference and gravitational force.
Therefore, the correct answer is option (B) - only the principles of difference in pressure and gravitational force are involved in supplying water from an overhead tank to houses in cities.
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In cities, water from an overhead tank is supplied to houses using the principle of(i) difference in pressure.(ii) gravitational force.(iii) decrease of friction m pipes.a)Only (i)b)Only (i) and (ii)c)Only (ii) and (iii)d)(i), (ii) and (iii)Correct answer is option 'B'. Can you explain this answer?
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