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Drainage System

📆 October 1, 2024

Drainage System

Total Questions: 43

31. Which of the following tributaries of the Ganga system flows Northwards? [Uttarakhand Lower Sub. (Pre) 2010]

Correct Answer: (c) Son
Solution:The Son which originates near Amarkantak in Madhya Pradesh is the main right bank tributary of the river Ganga which flows Northwards to join Ganga near Patna. Other rivers are tributaries of river Ganga on its left bank and flows Southwards.

32. Which river among the following does not join the Ganga river from left? [Uttarakhand P.C.S.(Pre) 2012]

Correct Answer: (d) Son
Solution:The Son which originates near Amarkantak in Madhya Pradesh is the main right bank tributary of the river Ganga which flows Northwards to join Ganga near Patna. Other rivers are tributaries of river Ganga on its left bank and flows Southwards.

33. Which range acts as a water divide between Yamuna and Son? [M.P.P.C.S. (Pre) 2016]

Correct Answer: (b) Kaimur
Solution:Kaimur Range forms the watershed or divides two major rivers of Peninsular India, the Son on the south and the Tons (a tributary of Yamuna) on the north.

34. The catchment area of which of the following river is maximum: [R.O./A.R.O. (Mains), 2017]

Correct Answer: (b) Son
Solution:Among the given options, the catchment area of Son river is maximum-

Mahananda-23700 sq. km
Son-70,055 sq. km
Ramganga-30,811.48 sq. km
Gandak-45,731 sq. km

35. The other name of river Gandak is: [69 B.P.S.C. (Pre), 2023]

Correct Answer: (c) Narayani
Solution:In Nepal, the Gandak River is also referred to as the Gandaki and Narayani Rivers. Significantly, the Gandak Comprises two streams, namely Kaligandak and Trishulganga. It rises in the Nepal Himalayas between the Dhaulagiri and Mount Everest and drains the Central part of Nepal.

36. 'Moribund Delta' is a sub-division of which of the following Delta? [U.P.P.C.S.(Pre) 2019]

Correct Answer: (c) Bengal Delta
Solution:"Moribund Delta" is a sub-division of Bengal Delta. The Moribund delta areas are in the south-western part of the country, south of the Ganga river, where tributaries are highly silted and are profusion of Oxbow lakes such areas are Jessore, Kushtia and Faridpur. The immature delta is on the south of the Moribund delta and mainly consists of sea beach and tidally influenced lands. The Sundarbans belongs to this region. The mature delta part is more towards the central part of the southern section of Bangladesh. The active delta is situated mainly at the delta of the Meghna River entering the Bay of Bengal. Regular flooding and formation of "Chars" and" offshore islands" are its characteristics.

37. Among the following tributaries, which one is the part of the Ganga river basin? [65th B.P.S.C.(Pre) 2019]

Correct Answer: (e) None of the above/More than one of the above
Solution:North Koel is a river flowing from Jharkhand, a tributary of the Son River, it joins the right bank of the Son River. The Son River is the second longest (first Yamuna) tributary of the Ganges River from the southern part of the Ganges near Patna. The southern Koel river flows into Jharkhand and Odisha. The southern Koel river flows in association with the Northern Karo River as the Koel River, which joins the Sankh River near Rourkela in Odisha as the Brahmani River.

The Barakar River is the main tributary of the Damodar River, which originates from the Koderma Plateau in Jharkhand and Joins Damodar via Hazaribagh. Damodar joins the Hooghly River in the lower Ganges basin. The Damodar River Basin is a sub-basin of the Ganges River Basin. Thus, Barakar and North Koel are sub-rivers of the Ganges river valley. Hence the correct answer to this question is option (e).

38. The number of districts situated on the bank of Ganga 2050 river in Bihar State is : [65th B.P.S.C. (Pre) 2019]

Correct Answer: (c) 12
Solution:12 districts of the state of Bihar are located on the banks of the river Ganges, which include Saran, Buxar, Bhojpur, Patna, Vaishali, Samastipur, Begusarai, Lakhisarai, Munger, Khagaria, Bhagalpur and Katihar.

39. The district of Bihar which has a longer length of 2005 Ganga river is : [65th B.P.S.C.(Pre) 2019]

Correct Answer: (c) Patna
Solution:The Ganga River passes through 12 districts of Bihar, in which the maximum length of the Ganges is in Patna (approx. 99 km). Bhagalpur comes in second place, where the length of the Ganges river is approx. 97km.

40. Which one of the following rivers is NOT the part of Indian Ganga river basin? [U.P.P.C.S.(Pre) 2021]

Correct Answer: (d) Jonk river
Solution:The Jonk river is a tributary of the Mahanadi, which flows through the states of Odisha and Chhattisgarh in India.
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