Assam Rivers GK MCQs with Answers for APSC, ADRE, Assam Police and Competitive Exams
Assam Rivers GK MCQs with Answers
Assam’s rivers are among the most important topics in General Knowledge and Geography for APSC, ADRE, Assam Police, Assam TET, Grade III, Grade IV, SSC, Railway, Banking, and other competitive examinations. The Brahmaputra and Barak river systems shape the geography, economy, agriculture, and culture of Assam.
1. Which is the principal river of Assam?
A. Barak
B. Dhansiri
C. Brahmaputra ✅
D. Subansiri
Answer: C. Brahmaputra
Explanation:
The Brahmaputra is the principal and largest river of Assam. It enters Assam from Arunachal Pradesh and flows westward through the state before entering Bangladesh. It is the lifeline of Assam and plays a vital role in agriculture, transportation, and ecology.
2. What is the Brahmaputra known as in Tibet?
A. Siang
B. Dihang
C. Tsangpo ✅
D. Jamuna
Answer: C. Tsangpo
Explanation:
The Brahmaputra originates in Tibet where it is known as the Tsangpo River. Upon entering Arunachal Pradesh, it is called Siang or Dihang and becomes Brahmaputra in Assam.
3. The Brahmaputra enters Assam through which district?
A. Tinsukia
B. Dhemaji ✅
C. Dibrugarh
D. Sonitpur
Answer: B. Dhemaji
Explanation:
After flowing through Arunachal Pradesh, the Brahmaputra enters Assam near Sadiya in Dhemaji district.
4. Which river is known as the southern river system of Assam?
A. Manas
B. Subansiri
C. Barak ✅
D. Beki
Answer: C. Barak
Explanation:
The Barak River is the principal river of Southern Assam and flows through the Barak Valley comprising Cachar, Karimganj, and Hailakandi districts.
5. Which river divides Assam into North Assam and South Assam?
A. Barak
B. Manas
C. Brahmaputra ✅
D. Kopili
Answer: C. Brahmaputra
Explanation:
The Brahmaputra flows through the middle of Assam and geographically divides the state into North Assam and South Assam.
6. Which is the largest tributary of the Brahmaputra in Assam?
A. Beki
B. Dhansiri
C. Jia Bharali
D. Subansiri ✅
Answer: D. Subansiri
Explanation:
The Subansiri River is the largest tributary of the Brahmaputra. It originates in Tibet and flows through Arunachal Pradesh before joining the Brahmaputra in Assam.
7. Which river is called the “Blue Mountain River”?
A. Manas
B. Subansiri ✅
C. Beki
D. Pagladia
Answer: B. Subansiri
Explanation:
The name Subansiri is believed to mean “Gold River” or “Blue Mountain River” depending on local interpretations. It is one of the most important tributaries of the Brahmaputra.
8. Which river originates in Bhutan and joins the Brahmaputra in Assam?
A. Manas ✅
B. Dhansiri
C. Kopili
D. Digaru
Answer: A. Manas
Explanation:
The Manas River originates in Bhutan and enters Assam before joining the Brahmaputra. It is associated with Manas National Park.
9. Manas National Park is situated on the banks of which river?
A. Barak
B. Subansiri
C. Manas ✅
D. Kopili
Answer: C. Manas
Explanation:
The Manas River flows through Manas National Park, a UNESCO World Heritage Site known for its rich biodiversity.
10. Which river flows through Kaziranga National Park?
A. Dhansiri
B. Brahmaputra ✅
C. Beki
D. Burhidihing
Answer: B. Brahmaputra
Explanation:
Kaziranga National Park lies on the southern bank of the Brahmaputra River. Seasonal flooding enriches its ecosystem and grasslands.
11. Which river forms Majuli Island?
A. Barak and Kopili
B. Brahmaputra and Subansiri ✅
C. Manas and Beki
D. Dhansiri and Digaru
Answer: B. Brahmaputra and Subansiri
Explanation:
Majuli is formed between the Brahmaputra River and its tributary, the Subansiri River, making it the world’s largest inhabited river island.
12. Which river is associated with Dibru-Saikhowa National Park?
A. Burhidihing and Lohit ✅
B. Kopili and Kulsi
C. Manas and Beki
D. Dhansiri and Digaru
Answer: A. Burhidihing and Lohit
Explanation:
Dibru-Saikhowa National Park is located near the confluence of the Brahmaputra, Lohit, and Burhidihing rivers.
13. Which river is famous for river rafting in Assam?
A. Jia Bharali ✅
B. Digaru
C. Dhansiri
D. Kalang
Answer: A. Jia Bharali
Explanation:
The Jia Bharali River, flowing through Nameri National Park, is well known for river rafting and eco-tourism activities.
14. Which tributary of the Brahmaputra flows through Nameri National Park?
A. Jia Bharali ✅
B. Manas
C. Beki
D. Kulsi
Answer: A. Jia Bharali
Explanation:
Jia Bharali River is an important north-bank tributary of the Brahmaputra and flows through the Nameri National Park region.
15. Which river is also known as the “River of Gold” in Assam?
A. Subansiri ✅
B. Beki
C. Dhansiri
D. Digaru
Answer: A. Subansiri
Explanation:
The name Subansiri is derived from words meaning “gold” and “river,” giving rise to the title “River of Gold.”
16. The Barak River originates from which state?
A. Assam
B. Nagaland
C. Manipur ✅
D. Meghalaya
Answer: C. Manipur
Explanation:
The Barak River originates in the hills of Manipur and enters Assam before flowing into Bangladesh.
17. Which river splits into Surma and Kushiyara in Bangladesh?
A. Brahmaputra
B. Barak ✅
C. Manas
D. Kopili
Answer: B. Barak
Explanation:
After entering Bangladesh, the Barak River divides into the Surma and Kushiyara rivers.
18. Which river is known as the “Old Channel” of the Brahmaputra?
A. Kalang ✅
B. Digaru
C. Beki
D. Pagladia
Answer: A. Kalang
Explanation:
The Kalang River is considered an old channel of the Brahmaputra and flows through Nagaon district.
19. Which river flows through Nagaon district?
A. Kalang ✅
B. Manas
C. Burhidihing
D. Kulsi
Answer: A. Kalang
Explanation:
The Kalang River is closely associated with Nagaon district and plays a significant role in local irrigation and fisheries.
20. Which river joins the Brahmaputra near Tezpur?
A. Jia Bharali ✅
B. Digaru
C. Kulsi
D. Dhansiri
Answer: A. Jia Bharali
Explanation:
The Jia Bharali River joins the Brahmaputra near Tezpur and contributes significantly to the river system of Upper Assam.
21. Which river is famous for freshwater dolphins in Assam?
A. Kulsi River ✅
B. Digaru
C. Kalang
D. Burhidihing
Answer: A. Kulsi River
Explanation:
The Kulsi River is known for its population of endangered Gangetic River Dolphins.
22. The Gangetic River Dolphin is the state aquatic animal of Assam. It is mainly found in which river?
A. Brahmaputra ✅
B. Barak
C. Digaru
D. Dhansiri
Answer: A. Brahmaputra
Explanation:
The Gangetic River Dolphin is commonly found in the Brahmaputra and its tributaries and is the state aquatic animal of Assam.
23. Which river originates in the Naga Hills?
A. Dhansiri ✅
B. Manas
C. Subansiri
D. Beki
Answer: A. Dhansiri
Explanation:
The Dhansiri River originates in the Naga Hills and is an important south-bank tributary of the Brahmaputra.
24. Which river is a tributary of the Barak River?
A. Sonai ✅
B. Beki
C. Pagladia
D. Jia Bharali
Answer: A. Sonai
Explanation:
The Sonai River is one of the important tributaries of the Barak River in Southern Assam.
25. Which river is associated with Pobitora Wildlife Sanctuary?
A. Brahmaputra ✅
B. Barak
C. Manas
D. Digaru
Answer: A. Brahmaputra
Explanation:
Pobitora Wildlife Sanctuary lies near the floodplains of the Brahmaputra and supports a high density of one-horned rhinoceroses.
26. Which river is known for causing severe floods in Assam almost every year?
A. Brahmaputra ✅
B. Sonai
C. Digaru
D. Kulsi
Answer: A. Brahmaputra
Explanation:
Due to heavy monsoon rainfall and sediment deposition, the Brahmaputra frequently causes devastating floods in Assam.
27. Which river joins the Brahmaputra from the north bank?
A. Subansiri ✅
B. Dhansiri
C. Kopili
D. Digaru
Answer: A. Subansiri
Explanation:
Subansiri originates in the Himalayas and joins the Brahmaputra from the north bank.
28. Which river joins the Brahmaputra from the south bank?
A. Dhansiri ✅
B. Subansiri
C. Beki
D. Jia Bharali
Answer: A. Dhansiri
Explanation:
Dhansiri flows from Nagaland and joins the Brahmaputra from the southern side.
29. Which river is important for the tea-growing regions of Upper Assam?
A. Burhidihing ✅
B. Kulsi
C. Sonai
D. Digaru
Answer: A. Burhidihing
Explanation:
The Burhidihing River flows through Upper Assam’s tea-growing areas and contributes to irrigation and agriculture.
30. Which river system is the most important drainage system of Assam?
A. Barak River System
B. Dhansiri River System
C. Brahmaputra River System ✅
D. Kopili River System
Answer: C. Brahmaputra River System
Explanation:
The Brahmaputra River System is the dominant drainage system of Assam. Most rivers of the state are tributaries of the Brahmaputra, making it the most important river network in the region.
Quick Revision for Exams
✔ Lifeline of Assam – Brahmaputra River
✔ Principal River of Southern Assam – Barak River
✔ Largest Tributary – Subansiri River
✔ River of Gold – Subansiri
✔ River through Manas National Park – Manas River
✔ River through Nameri National Park – Jia Bharali
✔ River Dolphin Hotspot – Kulsi River
✔ Old Channel of Brahmaputra – Kalang River
✔ Origin of Barak River – Manipur
✔ State Aquatic Animal Habitat – Brahmaputra River
These MCQs are highly relevant for APSC, ADRE, Assam Police, Assam TET, Grade III, Grade IV, SSC, Railway, Banking, and other competitive examinations.
