Irrigation Systems — Set 7
Indian Agriculture · सिंचाई प्रणाली · Questions 61–70 of 160
What is the purpose of a buffer strip in irrigation management?
Correct Answer: A. To reduce runoff and filter pollutants before they reach water bodies
The correct answer is To reduce runoff and filter pollutants before they reach water bodies. Buffer strips are vegetated areas maintained along waterways to slow runoff, filter pollutants, prevent soil erosion, and protect water quality. They are important environmental practices in agricultural regions to maintain water quality and protect aquatic ecosystems. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.
Which state pioneered lift irrigation in India?
Correct Answer: A. Madhya Pradesh
The correct answer is Madhya Pradesh. Madhya Pradesh was among the early adopters of lift irrigation technology in India, particularly for irrigation from the Narmada River. The state's topography and water resources made lift irrigation essential for agricultural development in elevated areas. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.
What is the primary objective of water use efficiency in agriculture?
Correct Answer: A. To maximize crop production with minimum water consumption
The correct answer is To maximize crop production with minimum water consumption. Water use efficiency in agriculture focuses on maximizing crop productivity and yield per unit of water used. This involves proper irrigation timing, suitable irrigation methods, efficient water delivery systems, and soil moisture monitoring to ensure water is used most effectively. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.
Which of the following is a government incentive for water conservation?
Correct Answer: A. Subsidies for drip irrigation installation
The correct answer is Subsidies for drip irrigation installation. Many state governments provide subsidies and financial incentives for farmers to install water-saving irrigation technologies like drip and sprinkler systems. These incentives, often covering 30-80% of installation costs, encourage adoption of efficient irrigation methods and promote water conservation. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.
What is the impact of poor drainage on irrigated agriculture?
Correct Answer: A. Waterlogging, soil salinity, and crop damage
Poor drainage in irrigated agriculture leads to waterlogging, where soil remains saturated with water, preventing root aeration and reducing crop productivity. It also causes salt accumulation (salinization), making soil infertile and unsuitable for cultivation. Proper drainage systems are essential for sustainable irrigated agriculture.
Which crop is traditionally associated with irrigation in Punjab?
Correct Answer: A. Wheat and rice
The correct answer is Wheat and rice. Punjab is known for wheat and rice cultivation, both heavily dependent on irrigation from rivers like Sutlej and Ravi, and from groundwater. The state's canal network and tubewell systems support these crops, making Punjab a major grain producer and contributor to India's food security. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.
What is the purpose of an irrigation schedule?
Correct Answer: A. To determine optimal timing and frequency of water application for crops
The correct answer is To determine optimal timing and frequency of water application for crops. An irrigation schedule specifies when and how much water should be applied to crops based on their growth stage, soil type, weather conditions, and water availability. Proper scheduling ensures adequate water supply, prevents waterlogging, reduces wastage, and maximizes crop productivity. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.
Which of the following reduces evaporation losses in irrigation?
Correct Answer: A. Early morning irrigation and soil mulching
Early morning irrigation and mulching reduce evaporation losses significantly. Early morning irrigation benefits from cooler temperatures and lower wind speeds, reducing water loss. Mulching covers soil surface, preventing direct evaporation and maintaining soil moisture. Together they improve irrigation efficiency.
What is the primary role of irrigation management at the field level?
Correct Answer: A. To ensure timely and optimal water delivery to crops for maximum yield
The correct answer is To ensure timely and optimal water delivery to crops for maximum yield. Field-level irrigation management involves monitoring soil moisture, adjusting irrigation frequency and duration, applying water at appropriate growth stages, and maintaining irrigation equipment. Effective field management directly impacts water efficiency, crop health, and agricultural productivity. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.
Which river is dammed most frequently in India?
Correct Answer: A. Godavari River
The correct answer is Godavari River. The Godavari River has multiple dams and barrages built across its course, making it one of the most dammed rivers in India. These structures support irrigation development across Andhra Pradesh, Telangana, Karnataka, and Maharashtra, making the Godavari crucial for regional water security. This topic is frequently tested in competitive examinations such as RRB NTPC, SSC, and UPSC.