Q130. Pahalgam in Kashmir is situated on which river?
[66th BPSC Prelims Re-exam (2020)]
(A) Shyok
(B) Jhelum
(C) Lidder
(D) Chenab
Answer: (C) Lidder
Explanation: Pahalgam stands near the Lidder, a river that flows through the Kashmir Valley and joins the Jhelum. The surrounding landscape is known for mountain streams and tourism. Rivers shaped settlement, local trade routes and agriculture throughout the adjoining plains and valleys.
Q129. What is the descending length order of Godavari, Krishna, Narmada and Mahanadi?
[Chhattisgarh PSC Prelims (2020)]
(A) Narmada, Mahanadi, Krishna, Godavari
(B) Krishna, Godavari, Mahanadi, Narmada
(C) Mahanadi, Krishna, Narmada, Godavari
(D) Godavari, Krishna, Narmada, Mahanadi
Answer: (D) Godavari, Krishna, Narmada, Mahanadi
Explanation: The Godavari is about 1,465 kilometres long, Krishna about 1,400, Narmada about 1,312 and Mahanadi about 851 kilometres, giving the fourth order. Plateau slopes and underlying geological structures are especially important in determining peninsular drainage patterns.
Q128. Arrange Yamuna tributaries west to east:
1. Betwa;
2. Ken;
3. Sindh;
4. Chambal.
[UPPCS Prelims (2020)]
(A) 4, 3, 1, 2
(B) 1, 2, 3, 4
(C) 3, 2, 1, 4
(D) 2, 3, 1, 4
Answer: (A) 4, 3, 1, 2
Explanation: The Chambal joins Yamuna farthest west among these, followed by Sindh, Betwa and Ken to the east. Their catchments cover much of Bundelkhand. The wider drainage network links Himalayan tributaries with major alluvial floodplains and downstream deltas.
Q127. Which statement about Sambhar Lake is correct?
[SSC CHSL Tier-I (18 March 2020, Shift 2)]
(A) It drains into the Arabian Sea
(B) It is India’s largest inland salt lake
(C) It is a meteor-impact crater
(D) It is India’s highest-altitude lake
Answer: (B) It is India’s largest inland salt lake
Explanation: Sambhar Lake is a saline inland lake in Rajasthan, lying west of Jaipur. It supplies salt through evaporation and has no direct outlet to the sea. Chilika, by comparison, is a coastal brackish-water lagoon.
Q126. The Indus River rises near which mountain range?
[WBCS Mains (2019)]
(A) Pir Panjal
(B) Kailash
(C) Zanskar
(D) Saltoro
Answer: (B) Kailash
Explanation: The Indus begins in western Tibet in the vicinity of the Kailash region and flows through Ladakh before entering Pakistan. It eventually reaches the Arabian Sea. Regional relief, river outlets and tributary connections help distinguish the surrounding drainage basin geographically.
Q125. Where do the Mandakini and Alaknanda rivers meet?
[WBCS Mains (2019)]
(A) Rudraprayag
(B) Karnaprayag
(C) Prayagraj
(D) Devprayag
Answer: (A) Rudraprayag
Explanation: Rudraprayag in Uttarakhand lies at the confluence of the Mandakini and Alaknanda. Devprayag, farther downstream, marks the meeting of the Alaknanda and Bhagirathi. Regional relief, river outlets and tributary connections help distinguish the surrounding drainage basin geographically.
Q124. Which is the largest west-flowing peninsular river?
[WBCS Mains (2019)]
(A) Tapi
(B) Sabarmati
(C) Narmada
(D) None of these
Answer: (C) Narmada
Explanation: The Narmada drains the Amarkantak region and follows a rift valley toward the Arabian Sea. It is longer than the Tapi, Mahi and Sabarmati. Plateau slopes and underlying geological structures are especially important in determining peninsular drainage patterns.
Q123. Which river was allocated for India’s unrestricted use under the Indus Waters Treaty?
[WBCS Mains (2019)]
(A) Jhelum
(B) Ravi
(C) Chenab
(D) Indus
Answer: (B) Ravi
Explanation: The treaty allocated the eastern rivers Ravi, Beas and Sutlej for India’s use, subject to its provisions. The Indus, Jhelum and Chenab were classified as western rivers. Regional relief, river outlets and tributary connections help distinguish the surrounding drainage basin geographically.
Q122. The Ganga is regarded as which type of river?
[WBCS Mains (2019)]
(A) Consequent
(B) Subsequent
(C) Antecedent
(D) None
Answer: (C) Antecedent
Explanation: The Himalayan Ganga drainage developed across a changing mountain landscape. Antecedent reaches cut gorges while preserving routes established before significant uplift. The wider drainage network links Himalayan tributaries with major alluvial floodplains and downstream deltas.
Q121. Where does the Chambal River originate?
[WBCS Mains (2019)]
(A) Malwa Plateau
(B) Aravalli Range
(C) Vindhya Range
(D) Satpura Range
Answer: (A) Malwa Plateau
Explanation: The Chambal rises near the Janapav hills in the Malwa region of Madhya Pradesh. It flows northwards and becomes a major tributary of the Yamuna. Regional relief, river outlets and tributary connections help distinguish the surrounding drainage basin geographically.
