Water Bodies and Water Heritage: RAS Prelims MCQs
101 RAS Prelims MCQs on the water bodies and water heritage of Rajasthan cover traditional harvesting structures and famous lakes. The reasons for water conservation in an arid land, stepwell design, the Khadin and Kund systems and the history of the lakes of Udaipur and Ajmer are all part of the question set, and the explanations link each structure to its region.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
Showing 1–10 of 101 questions
Explanation
The Aravalli Range is a significant geographical feature that influences the climatic patterns of Rajasthan. Because it runs parallel to the direction of the moisture-laden Arabian Sea monsoon branch, the winds pass over the region without being forced upward to cool and precipitate. This lack of orographic rainfall is a primary reason for the aridity in western plains.Statement I: Rajasthan contains about 10.4 percent of India’s landmass but holds less than 2 percent of the country’s surface water resources.
Statement II: The state’s heavy reliance on groundwater has led to over-exploitation, leaving the majority of its administrative blocks in the "safe" category.
Which of the following is correct?
Explanation
Rajasthan faces a major disparity between its extensive landmass and minimal surface water, managing only a small portion of national resources. This creates extreme water stress across the territory. Furthermore, heavy reliance on underground aquifers has led to critical depletion levels. Most administrative blocks are now classified as over-exploited or critical rather than being in a safe hydrological category.Explanation
Traditional water harvesting in arid Rajasthan relies on indigenous structures designed to capture and store seasonal runoff. Methods like Khadin, Tanka, and Johad represent ancient knowledge passed through generations to manage scarce rainfall. In contrast, modern tube wells rely on mechanical technology to extract deep groundwater, making them a contemporary exception to these time-tested, surface-level or shallow-seepage traditional systems.| Structure | Regional Association |
|---|---|
| A. Khadin | i. Sub-surface structured stepwells in Jodhpur |
| B. Johad | ii. Circular underground cisterns in Bikaner and Barmer |
| C. Tanka | iii. Earthen check dams prevalent in Alwar |
| D. Jhalara | iv. Runoff farming systems prominent in Jaisalmer |
Explanation
Different regions in Rajasthan developed specialized water structures based on local topography. Khadins are runoff farming systems prominent in Jaisalmer, while Johads act as earthen check dams in Alwar. Tankas are underground cisterns common in Bikaner and Barmer, and Jhalaras are structured stepwells found in Jodhpur. This regional diversity demonstrates a tailored approach to managing water across varied landscapes.Explanation
The Khadin system is uniquely suited for terrains with natural sloping catchments and low rainfall. By constructing an earthen embankment at the base of a slope, runoff water is trapped to saturate the soil. This moisture allows for successful agriculture in arid conditions. Unlike deep wells or decorative structures, it directly uses local geography to maximize the potential agricultural yield.I. Water management was considered a sacred duty and a moral obligation by both rulers and citizens.
II. Indigenous systems were heavily reliant on imported mechanical technologies from Central Asia.
III. Catchment areas of water bodies were often protected as sacred groves known as Orans.
Which of the above statement(s) is/are correct?
Explanation
Historically, water conservation in Rajasthan was deeply rooted in morality and local ecology. Communities viewed water management as a sacred duty, often protecting catchments as sacred groves to ensure purity and flow. These systems were entirely indigenous, developed over centuries without relying on foreign mechanical technologies. This traditional approach integrated social values with ecological preservation to sustain life in the desert.Assertion (A): Traditional rainwater harvesting systems are highly essential for sustaining life in western Rajasthan.
Reason (R): The region is characterized by high variability of rainfall, lack of perennial rivers, and deep, brackish groundwater aquifers.
Which of the following is correct?
Explanation
Traditional rainwater harvesting is vital for survival in western Rajasthan due to its harsh environmental conditions. The combination of erratic rainfall, the absence of perennial rivers, and the presence of deep, saline groundwater makes surface-level storage and recharge essential. These indigenous systems provide a reliable source of potable water and support agriculture where modern infrastructure and natural resources are limited.Explanation
A Baori or stepwell has steps or terraces that go down to the groundwater table. People walk down the steps to reach the water, and this separates it from a saucer-shaped catchment or a tank.Explanation
Stepwells were classed by their entrances: Nanda has one, Bhadra two, Jaya three and Vijaya four. A stepwell with two entrances is therefore a Bhadra.Answer key for these questions
| Q | Correct answer |
|---|---|
| 1 | (b) High evapotranspiration and sparse rainfall necessitate strict water conservation. |
| 2 | (a) It runs parallel to the Arabian Sea monsoon branch, preventing orographic rainfall. |
| 3 | (c) Statement I is true but Statement II is false. |
| 4 | (d) Tube well |
| 5 | (c) A-iv, B-iii, C-ii, D-i |
| 6 | (b) Implementation of the Khadin system |
| 7 | (c) I and III only |
| 8 | (a) Both A and R are true and R is the correct explanation of A. |
| 9 | (c) Architectural steps or terraces descending to the groundwater table. |
| 10 | (a) Bhadra |
Key facts from Water Bodies and Water Heritage
- Chand Baori at Abhaneri in Dausa district is one of the deepest and largest stepwells in India, with about 3,500 steps.
- Chand Baori has steps on three sides and a multi-storied pavilion on the fourth.
- A tube well is not a traditional water harvesting structure; Khadin, Kund and Baori are.
- Jag Niwas and Jag Mandir are island palaces in Lake Pichola, Udaipur.
- Sambhar Lake is a Ramsar site, important for flamingos.
- Ana Sagar in Ajmer was built in the 12th century by Arnoraja, and the Baradari on its embankment by Shah Jahan.
Frequently asked questions
How many RAS Prelims practice MCQs are there on Water Bodies and Water Heritage?
This page has 101 practice MCQs on Water Bodies and Water Heritage (Rajasthan History, Art and Culture). Each has the correct answer, and most have an explanation.
Where is Chand Baori?
At Abhaneri in Dausa district. It is among the deepest and largest stepwells in India, with about 3,500 narrow steps on three sides and a multi-storied pavilion on the fourth side, and it was built in the Gurjara-Pratihara period.
What is a Kund?
A Kund is a sloped catchment that guides rainwater into a central underground pit. It is a traditional harvesting structure of the arid zone, where rainfall is low and erratic and every drop has to be saved for the dry months.
Which lake in Alwar has a historic hunting lodge?
Siliserh Lake, in Alwar district, built by Maharaja Vinay Singh. It was made to bring water to Alwar for drinking and agriculture, and its scenic setting and old lodge later made it a popular spot for visitors.