Question

Which of the following is a better way of a cheap and useful way to carry water for irrigation?
A. Pulley system
B. Chain pump
C. Dhekli
D. Rahat

Answer 1

Hint: Irrigation or watering is important to crop or plants for better development and growth. The supply of water comes from various water sources like wells, ponds, lakes, canals, dams, reservoirs, etc. In this system, cows or buffaloes are connected to a wheel.

Complete answer: Irrigation is the process of watering the crops or plants. The frequency of irrigation to the crop varies from time to time, season to season and crop to crop. Some crops need less water, while others need more water. Crops that grow in the summer season need more water than in the winter season. In the day time, the evaporation is more, so the plant needs more water, while during the night, a plant needs less water due to less evaporation. Irrigation can be done either by a traditional way which includes large workforce and labour or by modern means. The traditional method which is used for irrigation is the pulley system (moat), chain pump, dhekli, rahat (lever system). In a pulley system, the pulley is used to carry buckets full of water where they are needed. It is the better, cheap and useful way to carry water for irrigation.
Hence, the correct answer is option A.

Note: Modern methods of irrigation includes surface irrigation, drip irrigation, sprinkler irrigation, subsurface irrigation. In drip irrigation, plastic pipes are laid in rows near crops. The hole is present in these pipes when water flows in the pipe, it comes out through these holes and is used up by plants.