Rivers MCQs set 3 for GBPSC Sub Inspector (BS-14) Geography — 20 solved questions.
Q1. Which African country contains the source of the Blue Nile, a major tributary of the Nile?
Answer: Ethiopia
Explanation: The Blue Nile originates at Lake Tana in the Ethiopian Highlands and contributes roughly 80% of the total Nile flow, particularly during the summer flood season.
Q2. The approximate length of the Nile River is:
Answer: 6,650 km
Explanation: The Nile is approximately 6,650 km long, making it the world's longest river (or close contender with the Amazon), flowing north from Central Africa to the Mediterranean.
Q3. The approximate length of the Mississippi River, the longest river in the USA, is:
Answer: 3,730 km
Explanation: The Mississippi River extends approximately 3,730 km from Lake Itasca in Minnesota to the Gulf of Mexico, making it the longest river entirely within the United States.
Q4. The Congo River is the second largest river in the world by discharge. Which river ranks first?
Answer: Amazon River
Explanation: The Amazon River discharges about 20% of all freshwater entering the world's oceans, far surpassing the Congo and all other rivers in total water volume.
Q5. Which river in Africa is known as the second largest river by discharge and is also the world's deepest river?
Answer: Congo River
Explanation: The Congo River discharges more water than any other African river and reaches depths exceeding 220 metres, making it both the continent's second largest by discharge and the world's deepest river.
Q6. Which is the longest river flowing through Pakistan?
Answer: Indus
Explanation: The Indus River stretches approximately 3,180 km and flows the full length of Pakistan from the north to the Arabian Sea, making it the country's longest and most important river.
Q7. The Indus River primarily drains into which body of water?
Answer: Arabian Sea
Explanation: After flowing some 3,180 km from its Tibetan source, the Indus crosses Pakistan and empties into the Arabian Sea near the port city of Karachi through a broad delta in Sindh.
Q8. The Indus Delta is located in which province of Pakistan?
Answer: Sindh
Explanation: The Indus Delta fans out across southern Sindh province, forming a vast network of distributaries and tidal creeks where the river meets the Arabian Sea.
Q9. Which river flows through both India and Bangladesh before emptying into the Bay of Bengal?
Answer: Ganges
Explanation: The Ganges originates in the Indian Himalayas, flows across the Indo-Gangetic Plain through India, and enters Bangladesh where it merges with the Brahmaputra before emptying into the Bay of Bengal.
Q10. The Brahmaputra River is known by what name when it flows through Bangladesh?
Answer: Jamuna
Explanation: After crossing into Bangladesh the Brahmaputra is called the Jamuna, where it merges with the Ganges (Padma) to form the Meghna before draining into the Bay of Bengal.
Q11. The Godavari River, one of India's major rivers, originates in and flows through which region before entering the Bay of Bengal?
Answer: Western Ghats through Maharashtra and Andhra Pradesh
Explanation: The Godavari originates in the Western Ghats near Trimbakeshwar in Maharashtra and flows eastward across the Deccan Plateau through Andhra Pradesh before emptying into the Bay of Bengal.
Q12. The Krishna River, one of India's major peninsular rivers, drains into which body of water?
Answer: Bay of Bengal
Explanation: The Krishna River rises in the Western Ghats of Maharashtra and flows east across the Deccan Plateau through Telangana and Andhra Pradesh, finally emptying into the Bay of Bengal near Hammanavolu.
Q13. Which country is home to the Ganges-Brahmaputra Delta, the largest river delta in the world?
Answer: Bangladesh
Explanation: The Ganges-Brahmaputra Delta, also called the Sundarbans Delta, is the world's largest river delta at about 105,000 km² and lies primarily within Bangladesh, with a smaller portion in the Indian state of West Bengal.
Q14. Through how many countries does the Mekong River flow?
Answer: 6
Explanation: The Mekong River flows through six countries: China, Myanmar, Laos, Thailand, Cambodia, and Vietnam before emptying into the South China Sea.
Q15. Into which body of water does the Indus River ultimately empty?
Answer: Arabian Sea
Explanation: After flowing some 3,180 km through Pakistan, the Indus River discharges into the Arabian Sea near Thatta in Sindh, forming a small delta south of Karachi.
Q16. Which major river flows through Myanmar and empties into the Andaman Sea?
Answer: Irrawaddy
Explanation: The Irrawaddy (Ayeyarwady) River is Myanmar's largest and most commercially important river, flowing from north to south through the country and emptying into the Andaman Sea via a large delta.
Q17. The Mekong River originates on which plateau?
Answer: Tibetan Plateau
Explanation: The Mekong River originates on the Tibetan Plateau near the headwaters of the Yangtze and Salween rivers, then flows southeast through Yunnan province before entering Southeast Asia.
Q18. Which river is known as the Jamuna in Bangladesh?
Answer: Brahmaputra
Explanation: The Brahmaputra River is known as the Jamuna in Bangladesh, where it forms one of the three major rivers - along with the Padma (Ganges) and Meghna - that together create the vast Bengal Delta.
Q19. Which river forms part of the border between India and Bangladesh?
Answer: Ganges
Explanation: The Ganges (Padma in Bangladesh) forms part of the India-Bangladesh border as it diverges near Rajshahi, making it a shared international boundary river before it joins the Brahmaputra and Meghna systems.
Q20. The Salween River of Southeast Asia is known by what name in China?
Answer: Nu River
Explanation: The Salween River is called the Nu River (Nu Jiang) in China, where it originates on the Tibetan Plateau before flowing through Yunnan province into Myanmar and Thailand.