Question 1

What is the primary purpose of canal irrigation in India?

Accepted Answer

To transport water from rivers to agricultural fields. Canal irrigation is a system where water from rivers or dams is transported through man-made channels (canals) to irrigate agricultural fields. It is one of the most common irrigation methods in India, covering millions of hectares of agricultural land and providing water during dry seasons.

Question 2

Which of the following is NOT a major irrigation system in India?

Accepted Answer

Aerial irrigation. Aerial irrigation is not a practical or widely used irrigation method in India. The main irrigation systems used are canal irrigation, well irrigation (including tubewells and bore wells), sprinkler irrigation, and drip irrigation. Each of these serves specific needs and soil conditions.

Question 3

What is drip irrigation primarily used for?

Accepted Answer

Efficient water delivery directly to plant roots. Drip irrigation delivers water directly to the root zone of plants through small diameter plastic pipes with emitters. This method is highly efficient, reducing water wastage by 30-60% compared to traditional methods, and is ideal for vegetables, fruits, and crops with high water requirements.

Question 4

Which dam is the highest in India?

Accepted Answer

Tehri Dam. Tehri Dam, located on the Bhagirathi River in Uttarakhand, is the highest dam in India at 260.5 meters. It is a multipurpose project that provides irrigation, hydroelectric power, and drinking water. Bhakra Nangal Dam at 226 meters is the second highest.

Question 5

What is the main objective of water harvesting in agriculture?

Accepted Answer

To collect and store rainwater for agricultural use. Water harvesting involves capturing and storing rainwater during the monsoon season for use during dry periods. This sustainable practice is crucial in drought-prone regions and helps maintain groundwater levels, reduces dependency on external water sources, and improves soil moisture.

Irrigation Systems — Set 1