Important Rivers of Assam with MCQs
Assam is blessed with many important rivers that support agriculture, transportation, wildlife, and the daily lives of millions of people. The Brahmaputra and Barak river systems are the two major river systems of the state. Questions about Assam’s rivers are frequently asked in APSC, ADRE, Assam Police, Assam TET, SSC, Railway, Banking, and other competitive exams.
1. Which is the principal river of Assam?
Answer: Brahmaputra
2. What is the Brahmaputra River known as in Tibet?
Answer: Tsangpo
3. Through which district does the Brahmaputra enter Assam?
Answer: Dhemaji
4. Which is the main river of Southern Assam?
Answer: Barak
5. Which river divides Assam into North Assam and South Assam?
Answer: Brahmaputra
6. Which is the largest tributary of the Brahmaputra in Assam?
Answer: Subansiri
7. Which river is known as the “River of Gold”?
Answer: Subansiri
8. Which river is also called the “Blue Mountain River”?
Answer: Subansiri
9. Which river originates in Bhutan and joins the Brahmaputra?
Answer: Manas
10. Manas National Park is situated on the banks of which river?
Answer: Manas River
11. Which river flows through Kaziranga National Park?
Answer: Brahmaputra
12. Which two rivers form Majuli Island?
Answer: Brahmaputra and Subansiri
13. Which rivers are associated with Dibru-Saikhowa National Park?
Answer: Lohit and Burhidihing
14. Which river is famous for river rafting in Assam?
Answer: Jia Bharali
15. Which river flows through Nameri National Park?
Answer: Jia Bharali
16. The Barak River originates from which state?
Answer: Manipur
17. Which river splits into the Surma and Kushiyara rivers in Bangladesh?
Answer: Barak
18. Which river is known as the old channel of the Brahmaputra?
Answer: Kalang
19. Which river flows through Nagaon district?
Answer: Kalang
20. Which river joins the Brahmaputra near Tezpur?
Answer: Jia Bharali
21. Which river is famous for Gangetic River Dolphins in Assam?
Answer: Kulsi River
22. In which river is the Gangetic River Dolphin mainly found in Assam?
Answer: Brahmaputra
23. Which river originates in the Naga Hills?
Answer: Dhansiri
24. Which river is an important tributary of the Barak River?
Answer: Sonai
25. Which river is associated with Pobitora Wildlife Sanctuary?
Answer: Brahmaputra
26. Which river causes severe floods in Assam almost every year?
Answer: Brahmaputra
27. Which river joins the Brahmaputra from the north bank?
Answer: Subansiri
28. Which river joins the Brahmaputra from the south bank?
Answer: Dhansiri
29. Which river is important for the tea-growing region of Upper Assam?
Answer: Burhidihing
30. Which is the most important drainage system of Assam?
Answer: Brahmaputra River System
31. Which river has the largest hydroelectric project in Assam?
Answer: Subansiri
32. The Brahmaputra enters Assam after flowing through which country?
Answer: China (Tibet)
33. Which river basin is mainly responsible for floods in Assam?
Answer: Brahmaputra River Basin
34. The Kopili River frequently causes floods in which region of Assam?
Answer: Middle Assam
35. Which river is responsible for the formation of Majuli, the world’s largest inhabited river island?
Answer: Brahmaputra
36. The Subansiri River originates in which country?
Answer: China (Tibet)
37. Which river has the largest network of tributaries in Assam?
Answer: Brahmaputra
38. Which UNESCO World Heritage Site is located on the Manas River?
Answer: Manas National Park
39. Which river system includes the Kopili Dam?
Answer: Kopili River System
40. Which Assam river is part of the Ganga-Brahmaputra-Meghna river system?
Answer: Barak
41. Dhemaji district is frequently affected by floods caused by which river?
Answer: Subansiri
42. The Kushiyara River is a distributary of which river?
Answer: Barak
43. Which river has high hydroelectric potential because of its steep upper course?
Answer: Subansiri
44. Which river flows through the western floodplains of Assam?
Answer: Manas
45. The Siang River flows through which Indian state before entering Assam?
Answer: Arunachal Pradesh
46. Majuli Island is located in which district of Assam?
Answer: Jorhat
47. Which river plays the most important role in irrigating Assam’s tea gardens?
Answer: Brahmaputra
48. The Kolong River is a distributary of which river?
Answer: Brahmaputra
49. In which country does the Manas River originate?
Answer: Bhutan
50. The Dhansiri River forms the natural boundary between Assam and which state?
Answer: Nagaland
51. The Dikhow River is a tributary of which river system?
Answer: Brahmaputra River System
52. Which river is the lifeline of Assam?
Answer: Brahmaputra
53. Which river is the main river of the Barak Valley?
Answer: Barak
54. Which river is called Siang before entering Assam?
Answer: Brahmaputra
55. Which river is also called Dihang before becoming the Brahmaputra?
Answer: Brahmaputra
56. Which river joins the Brahmaputra near Guwahati from the south?
Answer: Digaru
57. Which river is known for acid mine drainage problems in Northeast India?
Answer: Kopili
58. Which river flows through Golaghat district before joining the Brahmaputra?
Answer: Dhansiri
59. Which river is one of the major north-bank tributaries of the Brahmaputra after Subansiri?
Answer: Jia Bharali
60. Which river is considered the economic lifeline of Barak Valley?
Answer: Barak
61. Which river joins the Brahmaputra near Dhubri after flowing through Bhutan?
Answer: Sankosh
62. Which river is famous for its population of endangered Gangetic dolphins besides the Brahmaputra?
Answer: Kulsi
63. Which river is associated with Orang National Park?
Answer: Brahmaputra
64. Which river is known for creating fertile floodplains in Assam?
Answer: Brahmaputra
65. Which river carries the highest volume of water in Assam?
Answer: Brahmaputra
66. Which river is the second most important river system of Assam after the Brahmaputra?
Answer: Barak
67. Which river joins the Brahmaputra near Dibrugarh?
Answer: Burhidihing
68. Which river is an important tributary flowing through Sivasagar district?
Answer: Dikhow
69. Which river is associated with Sadiya in eastern Assam?
Answer: Lohit
70. Which river is famous for depositing fertile alluvial soil across Assam?
Answer: Brahmaputra
Learning about the important rivers of Assam is essential for understanding the state’s geography, environment, and economy. Regular practice of these MCQs will help you remember important facts such as river origins, tributaries, national parks, districts, and river systems. Keep revising these questions to strengthen your preparation for competitive exams.






