Question

Chain pump system of irrigation was primarily used in
A) Europe
B) China
C) Both A and B
D) India

Answer 1

Hint: Chain pump is a water which has many number discs positioned on an endless chain. One part of the chain is dumped into the water and the chain then runs along a tube. When the chain is pulled the water is trapped.

Complete answer:
To answer this question we must know about the chain pump system and where it is primarily used.
Chain pump system is a very old system which started in 700 B.C. Chain pumps are used for agricultural purposes. The chain pump system was used to expand the irrigation. The chain pump consists of two large wheels. These two wheels are connected by endless chains. One wheel is immersed in the water which is to be drawn. Water is drawn when the wheel is turned. The chain which is connected with these wheels helps in the movement. One wheel transfers the water into the required area and the cycle is repeated. Countries like the Middle East, Europe and China follow this technique.

                                                   Chain pump system

 However, India does not use this technique.
Thus the correct answer is the C. Chain pump system is used both in Europe and China.

Note: Initially the chain pump was made by the people themselves. They made this model to ease down the process of distributing water into agricultural fields. Now it is used on a large scale. This method made irrigation easier. Fully automated chain pumps are now available.