Rivers MCQs set 2 for GBPSC Assistant (BS-15/16) Geography — 20 solved questions.
Q1. Which river is the longest river flowing through Pakistan?
Answer: Indus
Explanation: The Indus River is the longest river flowing through Pakistan, covering approximately 2,900 km within the country. It originates in Tibet and flows through Pakistan before emptying into the Arabian Sea.
Q2. The Indus River covers approximately how many kilometres within Pakistan?
Answer: 2,900 km
Explanation: The Indus River flows approximately 2,900 km within Pakistan before emptying into the Arabian Sea near Karachi. The total length of the Indus including its course through Tibet and India is about 3,180 km.
Q3. A shipping brief says Rhine barges offload near the busiest Dutch maritime hub but diplomats must lodge credentials in that country’s constitutional national capital anyway. Which city is that capital?
Answer: Amsterdam
Explanation: Amsterdam is the constitutional capital of the Netherlands; while Rotterdam is the country's largest port and The Hague houses the government and parliament, Amsterdam retains the formal capital designation.
Q4. Monitoring fresh water downstream of Kotri Barrage matters for delta health as the Indus finally reaches which ocean-connected marine region?
Answer: The Arabian Sea adjoining the northwestern Indian Ocean
Explanation: After passing Kotri Barrage - the last major barrage on the Indus - the river flows through the Indus Delta and drains into the Arabian Sea, the northwestern arm of the Indian Ocean.
Q5. Indus irrigation debates still touch brackish mixing zones. Where river outflow meets seawater, what basic coastal feature name fits a protected inlet often flanked by barrier islands?
Answer: A lagoon behind barrier islands or spits
Explanation: Where a river mouth is partially enclosed by barrier islands or spits, a sheltered coastal lagoon forms; these are common at delta fronts where longshore drift builds barriers across the river outflow.
Q6. Indus-related climate briefings cite monsoon currents. Warm surface water pumped across the tropical Pacific toward Indonesia during neutral or El Niño-related shifts most directly feeds which western Pacific marginal sea richness?
Answer: Warm pool sectors including the Indonesian seas and adjacent western Pacific margins
Explanation: During neutral or El Niño-influenced conditions, warm surface water is concentrated in the western Pacific warm pool around the Indonesian seas and adjacent margins, fuelling high evaporation and convective rainfall in that region.
Q7. What is the longest river in the world?
Answer: Nile River
Explanation: The Nile, flowing approximately 6,650 km through northeastern Africa from its headwaters in Burundi to the Mediterranean, is conventionally cited as the world's longest river.
Q8. The Amazon River is primarily located in which country?
Answer: Brazil
Explanation: About 60% of the Amazon River's total length flows through Brazil, and the river drains into the Atlantic Ocean on Brazil's northeastern coast.
Q9. Which river has the largest discharge (volume of water) in the world?
Answer: Amazon River
Explanation: The Amazon River discharges approximately 209,000 m³ per second into the Atlantic Ocean - about 20% of all freshwater entering the world's oceans - far exceeding any other river's volume.
Q10. Into which sea does the Volga River flow?
Answer: Caspian Sea
Explanation: The Volga River, Europe's longest river, flows southward through Russia and empties into the landlocked Caspian Sea near Astrakhan.
Q11. The River Rhine flows into which sea?
Answer: North Sea
Explanation: The Rhine originates in the Swiss Alps and flows northward through Germany and the Netherlands before emptying into the North Sea.
Q12. How many countries does the Danube River flow through?
Answer: Ten
Explanation: The Danube flows through ten countries - Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, and Ukraine - making it the world's most internationally shared major river.
Q13. Which river flows through the city of Paris?
Answer: Seine
Explanation: The Seine River flows through central Paris for approximately 13 km, passing landmarks such as Notre-Dame Cathedral and the Eiffel Tower.
Q14. Which river flows through London?
Answer: Thames
Explanation: The River Thames flows 346 km through southern England, passing through central London before emptying into the North Sea.
Q15. The River Elbe flows into which body of water?
Answer: North Sea
Explanation: The Elbe rises in the Krkonoše Mountains of the Czech Republic, flows northwest through Germany, and empties into the North Sea at Cuxhaven.
Q16. The Vistula River is the longest river of which country?
Answer: Poland
Explanation: The Vistula (Wisla) flows about 1,047 km from the Carpathian Mountains to the Baltic Sea and is Poland's longest and most historically significant river.
Q17. Which is the second longest river in Europe?
Answer: Danube
Explanation: At approximately 2,860 km, the Danube is Europe's second longest river after the Volga, flowing through ten countries before reaching the Black Sea.
Q18. The Congo River is notable for being the world's deepest river. In which region of Africa is it located?
Answer: Central Africa
Explanation: The Congo River flows through Central Africa and is the world's deepest river, reaching depths of over 220 metres in places.
Q19. The Mississippi River is the longest river in the USA. Into which body of water does it drain?
Answer: Gulf of Mexico
Explanation: After draining the central United States from Minnesota southward, the Mississippi empties through a broad delta into the Gulf of Mexico near New Orleans.
Q20. The Niger River flows through several West African countries and empties into which body of water?
Answer: Gulf of Guinea
Explanation: The Niger River originates in Guinea, flows northeast through Mali, then curves south through Nigeria, emptying into the Atlantic Ocean via the Niger Delta in the Gulf of Guinea.