Rajasthan Geography

Lakes of Rajasthan

50,000+ Questions

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MEDIUM

Which of the following statements about Kaylana Lake is FALSE?

It is also known as Sardar Pratap Sagar.

It was built in the 19th century.

It acts as the primary source of drinking water for Jaisalmer city.

It is located in the Jodhpur district.

Explanation

🌟 Quick Verification

Direct Answer: It acts as the primary source of drinking water for Jaisalmer city.
Core Concept: Distinguishing the specific municipal service areas of major Rajasthan lakes.

🧠 Concept Blueprint

Correction of Fact:
- Kaylana Lake provides drinking water to Jodhpur city, not Jaisalmer. Jaisalmer uses other local bodies like Gadsisar Lake, which is also connected to the IGNP, but Kaylana is Jodhpur's lifeline.

📊 Fact Spotlight

City	Key Drinking Water Lake
Jodhpur	Kaylana Lake
Jaisalmer	Gadsisar Lake

💡 Exam Strategy & Trivia

Tip

Common Trap: Questions often swap the cities (Jodhpur vs. Jaisalmer) for lakes that are both connected to the IGNP. Read the city name carefully.

HARD

Assertion (A): The Didwana-Kuchaman district is a significant hub for saltwater lakes in Rajasthan.

Reason (R): The geological conditions, specifically the presence of capillary-active Schist rocks, are found in high density within the Didwana-Kuchaman region.

Which of the following is correct?

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

A is true but R is false.

A is false but R is true.

Explanation

🌟 Quick Verification

Direct Answer: Both A and R are true and R is the correct explanation of A.
Core Concept: Regional concentration of specific geological features leads to the cluster of saltwater lakes in specific administrative zones.

🧠 Concept Blueprint

Regional Clustering: The Didwana-Kuchaman district contains several prominent saltwater lakes (Didwana, Kuchaman, and Nawa), confirming it as a high-density zone.
Geological Linkage: The presence of Schist rocks is indeed the foundational requirement for the capillary action that creates these saline conditions, thus the reason explains the location-based assertion.

📊 Fact Spotlight

Lake Name	District
Didwana	Didwana-Kuchaman
Kuchaman	Didwana-Kuchaman
Nawa	Didwana-Kuchaman

💡 Exam Strategy & Trivia

Tip

Important Association: Whenever you see these three specific lakes, remember they form a geographic cluster in the newer Didwana-Kuchaman district.

HARD

Consider the following statements regarding the economic and chemical profile of Didwana Lake:

The administrative location of Didwana Lake falls within the Didwana-Kuchaman region.
The primary reason for the low edible quality of its salt is the dominance of Sodium Sulfate ( $Na_2SO_4$ ) over Sodium Chloride.
The Rajasthan State Chemical Works was established near the lake in 1964.
The extracted chemical compound is exclusively used in the agricultural fertilizer industry.

Which of the statements given above are correct?

1, 2 and 3 only

2, 3 and 4 only

1 and 4 only

All of the above

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is 1, 2 and 3 only.
Core Concept: Statement 4 is incorrect because Sodium Sulfate extracted from Didwana Lake is used in glass, paper, and leather industries, not as an agricultural fertilizer.

🧠 Solution Blueprint

Statement Analysis:
- Statement 1: Didwana Lake is located in the Didwana-Kuchaman region of Rajasthan, making this statement correct.
- Statement 2: The lake produces low-quality salt for consumption due to high amounts of Sodium Sulfate ( $Na_2SO_4$ ) instead of Sodium Chloride ( $NaCl$ ), making this statement correct.
- Statement 3: The Rajasthan State Chemical Works was established near the lake in 1964, making this statement correct.
- Statement 4: The chemical is utilized in Kaanch Udyog (Glass), Kaagaz Udyog (Paper), and Chamda Udyog (Leather), rendering the fertilizer claim incorrect.

MEDIUM

Match the following saltwater lakes with their respective current districts in Rajasthan:

Lake (Jheel)	District (Sthan)
A. Lunkaransar	1. Balotra
B. Pachpadra	2. Sikar
C. Rewasa	3. Bikaner
D. Kawod	4. Jaisalmer

Select the correct code from the options below:

A-3, B-1, C-2, D-4

A-1, B-3, C-2, D-4

A-3, B-1, C-4, D-2

A-4, B-1, C-3, D-2

Explanation

🌟 Quick Verification

Direct Answer: The correct sequence is A-3, B-1, C-2, D-4.
Core Concept: Correct identification of saltwater lakes based on the newly reorganized districts of Rajasthan.

🧠 Concept Blueprint

Lunkaransar is located in Bikaner district.
Pachpadra has been moved to the newly formed Balotra district.
Rewasa (along with Kachor) is located in the Sikar district.
Kawod (also called Kanod) is located in the Jaisalmer district.

💡 Exam Strategy & Trivia

Tip

Exam Trap: Many older study materials associate Pachpadra with Barmer. Ensure you update your knowledge to reflect the new Balotra district status following recent administrative boundary changes.

Lab Assistent (Home Sci.) -30.06.2022

MEDIUM

Which of the following lakes of Rajasthan does not come under the 'National Lake Conservation Programme' (NLCP)?

Mansagar

Aanasagar

Pushkar

Bajaj Sagar

Explanation

Bajaj Sagar Lake does not come under the National Lake Conservation Programme.

No credit card required

HARD

Assertion (A): Ramgarh Lake in Baran is scientifically considered a Meteorite/Crater Lake.
Reason (R): The lake is situated within a distinct landform characterized by horseshoe-shaped hills, which is typical of ancient impact structures.

Select the correct option:

Both (A) and (R) are true, and (R) is the correct explanation of (A).

Both (A) and (R) are true, but (R) is NOT the correct explanation of (A).

(A) is true, but (R) is false.

(A) is false, but (R) is true.

Explanation

🌟 Quick Verification

Direct Answer: Both Assertion (A) and Reason (R) are true, and (R) explains (A).
Core Concept: The connection between geomorphological impact structures and the resulting topographical features.

🧠 Concept Blueprint

Assertion Explanation: Ramgarh Lake in Baran is indeed an impact crater, formed by a meteorite collision.
Reasoning: The horseshoe-shaped hills (Ghode ki naal) are the remnants of the crater rim formed by the impact, providing geological evidence that confirms the crater theory.

📊 Fact Spotlight

Term	Definition
Crater	A bowl-shaped depression formed by a volcanic explosion or impact
Meteorite	A space rock that strikes the Earth's surface
Geo-Heritage	Sites of scientific value protected for their unique geology

💡 Exam Strategy & Trivia

Tip

Memorable Trivia: Many crater lakes around the world exhibit circular or semi-circular raised rims. The "horseshoe" description is a specific regional identifier for the Baran site.

EASY

Which of the following sets of lakes in Rajasthan is exclusively associated with commercial salt extraction (Namak Utpadan) according to the geographical classification of lake utilities?

Sambhar, Pachpadra, and Didwana

Jaisamand, Moti Jheel, and Pushkar

Nakki, Mansagar, and Pichhola

Pushkar, Kolayat, and Anasagar

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is Sambhar, Pachpadra, and Didwana.
Core Concept: Commercial salt extraction centers in Rajasthan.

🧠 Solution Blueprint

Fact Lookup:
- Sambhar, Pachpadra, and Didwana lakes are explicitly categorized under Salt Production (Namak Utpadan).
- Other sets belong to different categories such as tourism, irrigation, or religious significance.

MEDIUM

Consider the following statements regarding Pachpadra Lake:

It is primarily located in the district of Balotra.
The salt extraction technique involves the use of wells or pits locally referred to as 'Kosya'.
The salt produced after filtration in these pits is named 'Resta'.

Which of the statements given above are correct?

1 and 2 only

2 and 3 only

1 and 3 only

1, 2, and 3

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is 1, 2, and 3.
Core Concept: Pachpadra Lake extraction techniques and nomenclature.

🧠 Concept Blueprint

Production Mechanism:
- The process involves sinking small pits or wells known as Kosya (or Kund/Ku).
- Through the natural filtration and seepage of saline water into these pits, the high-grade salt residue is collected, which is locally termed Resta.
Geographical Context: Following the recent administrative reorganization, the lake is situated in the Balotra district.

📊 Fact Spotlight

Salt Lake	District	Significance
Pachpadra	Balotra	Best quality salt, 98% NaCl
Sambhar	Jaipur/Nagaur	Largest inland saline lake of India
Deedwana	Nagaur	Primarily used for chemical salt/Sodium Sulphate
Lunkaransar	Bikaner	Known for moderate production

💡 Exam Strategy & Trivia

Tip

Exam Trap: Candidates often confuse the name of the salt pits (Kosya) with the product itself (Resta). Always remember: Kosya is the container (pit), Resta is the content (salt).

HARD

Consider the following statements regarding the source rivers and barrage feeding Kaylana Lake:

The Harike Barrage is situated in the state of Punjab.
The barrage marks the geographical confluence point of the Beas and Satluj rivers.
The water from Harike Barrage is transported all the way to Jodhpur to sustain Kaylana Lake without any intermediate lift canal systems.

Which of the statements given above are correct?

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is 1 and 2 only.
Core Concept: The Harike Barrage serves as the meeting point of the Beas and Satluj rivers in Punjab, supplying water through specialized lift canal infrastructure.

🧠 Concept Blueprint

Statement Evaluation:
- Statement 1 is correct as Harike Barrage is located in Punjab.
- Statement 2 is correct because it is formed at the confluence of the Beas and Satluj rivers.
- Statement 3 is incorrect because water is transported via the Rajiv Gandhi Lift Canal, meaning it does not travel without intermediate lift mechanisms.

MEDIUM

Identify the INCORRECT statement regarding Uday Sagar Lake from the following:

The lake is located in Udaipur.

It was constructed between 1559 and 1564 AD.

The Bedach River flows into the lake and becomes the Aayad River after leaving it.

The lake serves as a geographical identifier for the change in the river's name.

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is The Bedach River flows into the lake and becomes the Aayad River after leaving it.

🧠 Concept Blueprint

Why it is Incorrect: The flow direction is inverted in this statement. The Aayad River feeds into the lake, and it is known as the Bedach River only after it leaves the lake, not the other way around.

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EASY

Assertion (A): Pichhola Lake and Anasagar Lake are vital components of the water management network in Rajasthan primarily serving urban populations.
Reason (R): These water bodies function as essential sources of drinking water (Peyjal) for major urban centers.

Select the correct option:

Both (A) and (R) are true, and (R) is the correct explanation of (A).

Both (A) and (R) are true, but (R) is not the correct explanation of (A).

(A) is true, but (R) is false.

(A) is false, but (R) is true.

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is Both (A) and (R) are true, and (R) is the correct explanation of (A).
Core Concept: Urban water supply utility of lakes.

🧠 Solution Blueprint

Reasoning Analysis:
- Assertion (A) correctly notes that Pichhola and Anasagar are vital to the urban water network.
- Reason (R) explains this status by stating they provide essential drinking water (Peyjal) for urban populations, establishing a clear cause-and-effect relationship.

MEDIUM

Consider the following statements regarding the lakes in Rajasthan:

Anand Sagar (Bai Talab) is located in the Banswara district.
Gaip Sagar is located in the Dungarpur district.
Urmila Sagar is located in the Dholpur district.

Which of the statements given above are correct?

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

Explanation

🌟 Quick Verification

Direct Answer: 1, 2 and 3.
Core Concept: Verifying the district locations of specific lesser-known but historically important lakes.

🧠 Concept Blueprint

Banswara: Home to Anand Sagar (Bai Talab) and Diyla/Daylav Talab.
Dungarpur: Home to Edward Sagar and Gaip Sagar.
Dholpur: Home to Talabshahi, Ramsagar, and Urmila Sagar.

📊 Fact Spotlight

Lake	District	Significance
Anand Sagar	Banswara	Local historical lake
Gaip Sagar	Dungarpur	Historical lake
Urmila Sagar	Dholpur	Part of Dholpur lake system

💡 Exam Strategy & Trivia

Tip

Memorable Trivia: Banswara is often referred to as the 'City of Hundred Islands', and its lakes like Anand Sagar are central to its geography.

JEN Degree (TSP) Exam-16.10.2016

MEDIUM

Where have the Playa lakes been formed in Rajasthan?

Luni Basin

Amber Basin

Dune-free region

Internal drainage basins

Explanation

Playa lakes in Rajasthan are mainly formed in dune-free areas.

EASY

Commissioned in the year 1610 AD by Maharaja Mansingh, which prominent historical lake in Rajasthan houses the iconic Jal Mahal?

Pichola Lake

Mansagar Lake

Udai Sagar Lake

Nakki Lake

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is Mansagar Lake.
Core Concept: Mansagar Lake was built in 1610 AD by Maharaja Mansingh and is famous for containing the Jal Mahal palace.

EASY

Which historical figure is associated with the reconstruction of Fateh Sagar Lake in 1888 AD, leading to its modern structural embankment and renaming?

A) Maharana Jai Singh
B) Maharana Fateh Singh
C) Maharana Udai Singh
D) Maharana Pratap

Maharana Jai Singh

Maharana Fateh Singh

Maharana Udai Singh

Maharana Pratap

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is Maharana Fateh Singh.
Core Concept: Reconstruction and naming history of Fateh Sagar Lake in Udaipur.

🧠 Solution Blueprint

Step-by-Step Solution:
- Fateh Sagar Lake was originally founded by Maharana Jai Singh in 1688 AD and was initially called Devali Talab.
- After heavy monsoon breaches washed away the earthen dam, the lake was reconstructed in 1888 AD by Maharana Fateh Singh, after whom the lake was officially renamed.
- The lake is also historically associated with the British Duke of Connaught, who laid the foundation stone for the new reconstruction.

EASY

Which of the following statements regarding the water supply of Maotha Lake is correct?

It is fed by the perennial rivers of the Aravalli range.

Its primary source is groundwater extraction.

The lake is filled primarily by rainwater (Varsha Jal).

It is a canal-fed reservoir from the Indira Gandhi Canal.

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is The lake is filled primarily by rainwater (Varsha Jal).
Core Concept: Understanding the source of water for heritage lakes in Rajasthan.

🧠 Concept Blueprint

Mechanism:
- Maotha Lake acts as a catchment basin for runoff from the surrounding Aravalli hills.
- During the monsoon season, this runoff collects in the basin, forming the freshwater reservoir known as Maotha.
Why other options are incorrect: The region does not rely on major perennial rivers (as many are seasonal), and it is not fed by the Indira Gandhi Canal, which serves other parts of Western Rajasthan.

VDO Mains - 09.07.2022

MEDIUM

Which of the following is not a saline (salty) water lake?

Kavod

Didwana

Rewasa

Jaitsagar

Explanation

Jaitsagar is a freshwater lake located in Bundi.

MEDIUM

Consider the following statements about Naval Sagar:

It is a natural tectonic lake formed by ancient seismic shifts in the Aravalli range.
It is situated in close proximity to the historic Taragarh Fort.
The lake is fed by freshwater sources and features ornate ghats and a central water-deity temple.

Which of the statements given above are correct?

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is 2 and 3 only.
Core Concept: Distinguishing between natural and artificial water bodies and recognizing key structural landmarks of Naval Sagar.

🧠 Solution Blueprint

Statement 1 Validation: Naval Sagar is an artificial/man-made freshwater lake commissioned by Ummed Singh, not a natural tectonic lake. Hence, statement 1 is incorrect.
Statement 2 Validation: The lake is located right near the Taragarh Fort in Bundi. Hence, statement 2 is correct.
Statement 3 Validation: It is a freshwater lake featuring ghats and a central Varun Dev temple. Hence, statement 3 is correct.

HARD

Assertion (A): Ramgarh Lake in Baran has gained significant international geological attention and was added to the UNESCO Geo-Heritage list.
Reason (R): It represents a rare and well-preserved meteorite impact crater structure characterized by a distinct ring-shaped depression surrounded by hills.

Select the correct option:

Both (A) and (R) are true, and (R) is the correct explanation of (A).

Both (A) and (R) are true, but (R) is NOT the correct explanation of (A).

(A) is true, but (R) is false.

(A) is false, but (R) is true.

Explanation

🌟 Quick Verification

Direct Answer: The correct answer is Both (A) and (R) are true, and (R) is the correct explanation of (A).
Core Concept: The global geo-heritage recognition of Ramgarh Lake is a direct consequence of its unique meteorite impact crater geology.

🧠 Solution Blueprint

Assertion Analysis: Ramgarh Lake was officially recognized as a UNESCO Geo-Heritage Site in 2024, which is a true statement.
Reasoning Analysis: The reason it received this status is precisely because of its rare geological formation as a meteorite impact crater surrounded by horseshoe-shaped hills, making Reason (R) the exact cause and correct explanation for Assertion (A).

HARD

In the context of traditional salt extraction in Pachpadra, identify the correct sequence of the process as per the terminology used:

Morli (shrub) -> Kosya (pit) -> Resta (salt)

Kosya (pit) -> Morli (shrub) -> Resta (salt)

Resta (salt) -> Kosya (pit) -> Morli (shrub)

Morli (shrub) -> Resta (salt) -> Kosya (pit)

Explanation

🌟 Quick Verification

Direct Answer: The correct sequence is Morli (shrub) -> Kosya (pit) -> Resta (salt).

🧠 Concept Blueprint

The Logical Flow:
- Stage 1 (Operational Tool): The Morli shrub is used in the setup/filtration process.
- Stage 2 (Facility): The brine is collected in the Kosya (pits/wells).
- Stage 3 (Output): The resulting high-grade salt collected is called Resta.

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