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21 questions from UPSC CSE Prelims GS Paper 1 on Oceanography (Geography). Spanning from 1995 to 2024. Practice with show/hide answers and detailed explanations.
21
Questions
16
Years
8
Easy
12
Moderate
Based on 21 questions across 16 years, UPSC has consistently tested aspirants' understanding of Oceanography within the broader Geography syllabus. The questions range from factual recall to application-based analysis.
Recent trends show UPSC moving towards statement-based questions that combine multiple aspects of Oceanography. Aspirants should focus on understanding concepts rather than memorizing isolated facts.
Q: Consider the following statements: 1. The Red Sea receives very little precipitation in any form. 2. No water enters the Red Sea from rivers. Which of the statements given above is/are correct?
Q: समुद्री कानून पर संयुक्त राष्ट्र अभिसमय (यूएनसीएलओएस) के संदर्भ में, निम्नलिखित कथनों पर विचार कीजिए : 1. किसी तटीय राज्य को, अपने प्रत्याश समुद्र (Territorial Sea) की चौड़ाई को, आधार-रेखा से गिनते हुए, 12 समुद्री मील से अधिक सीमा तक विस्तारित करने का अधिकार है। 2. सभी राज्यों को, चाहे वे तटीय हों या भू-भाग से घिरे हों, जहाजों को प्रादेशिक समुद्र से होकर बिना रोक-टोक यात्रा का अधिकार होता है। 3. अनन्य आर्थिक क्षेत्र (Exclusive Economic Zone) का विस्तार उस आधार-रेखा से 200 समुद्री मील से अधिक नहीं होगा, जहाँ से प्रादेशिक समुद्र की चौड़ाई मापी जाती है। उपयुक्त कथनों में कौन-से सही हैं?
Q: महासागर औसत तापमान (Ocean Mean Temperature/OMT) के संदर्भ में, निम्नलिखित में से कौन-सा/से कथन सही है/हैं? 1. OMT को 26°C तापमान रेखा की गहराई तक मापा जाता है, जो जनवरी-मार्च में हिन्द महासागर के दक्षिण-पश्चिम में 129 मीटर पर होती है। 2. OMT, जो जनवरी-मार्च में एकत्रित किया जाता है, उसे यह निर्धारित करने के लिए प्रयोग किया जा सकता है कि मानसून में वर्षा की मात्रा एक निश्चित दीर्घकालीन औसत वर्षा से कम होगी या अधिक। नीचे दिए गए कूट का प्रयोग कर सही उत्तर चुनिए:
Q: What explains the eastward flow of the equatorial counter-current?
Q: महासागरों और समुद्रों में ज्वार-भाटा किसके/किनके कारण होता/होते हैं? 1. सूर्य का गुरुत्त्वीय बल 2. चन्द्रमा का गुरुत्त्वीय बल 3. पृथ्वी का अपकेन्द्रीय बल नीचे दिए गए कूट का प्रयोग कर सही उत्तर चुनिए।
Q: Which one of the following pairs of islands is separated from each other by the 'Ten Degree Channel'?
Q: On the planet Earth, most of the freshwater exists as ice caps and glaciers. Out of the remaining freshwater, the largest proportion
Q: The most important fishing grounds of the world are found in the regions where
Q: Consider the following factors : 1. Rotation of the Earth 2. Air pressure and wind 3. Density of ocean water 4. Revolution of the Earth Which of the above factors influence the ocean currents?
Q: Consider the following statements: 1. On the planet Earth, the fresh water available for use amounts to about less than 1% of the total water found. 2. Of the total fresh water found on the planet Earth 95% is bound up in polar ice caps and glaciers. Which of the statements given above is/are correct?
Q: In which one of the following oceans is Diamantina Trench situated?
Q: Bermuda triangle extends up to which of the following places? 1. Southern Florida 2. Puerto Rico 3. Hawaii Islands Select the correct answer using the code given below:
Q: Which one of the following statements is not correct?
Q: Consider the following statements: 1. Ocean currents are the slow surface movement of water in the ocean. 2. Ocean currents assist in maintaining the Earth’s heat balance. 3. Ocean currents are set in motion primarily by prevailing winds. 4. Ocean currents are affected by the configuration of the ocean floor. Which of these statements are correct?
Q: Assertion (A): During the Neap Tides, the high tide is lower and the low tide is higher than usual. Reason (R): The Neap Tide, unlike the Spring Tide, occurs on the New Moon instead of on the Full Moon.
Q: Consider the following statements: I. Tides are of great help in navigation and fishing. II. High tide enables big ships to enter or leave the harbour safely. III. Tide prevents siltation in the harbours. IV. Kandla and Diamond Harbour are tidal ports. Which of these statements are correct?
Q: Match List I with List II and select the correct answer using the codes given below the Lists: List I (Oceanic Trench) I. Aleutian II. Kermadec III. Sunda IV. S. Sandwich List II (Location) A) Indian Ocean B) North Pacific Ocean C) South Pacific Ocean D) South Atlantic Ocean Codes:
Q: In the given map, which one of the following pairs of ocean currents is shown?
Q: At which one of the following positions shown in the diagram will the height of the ocean tide be maximum?
Q: Which one of the following factors is responsible for the change in the regular direction of the ocean currents in the Indian Ocean?
Q: Consider the map given below: The divisions along India’s coastal region indicate
UPSC has asked 21 questions on Oceanography in GS Paper 1 Prelims between 1995 and 2024. This sub-topic falls under Geography.
Questions on Oceanography have appeared in UPSC Prelims in the following years: 2024, 2022, 2020, 2015, 2014, 2013, 2012, 2010, 2006, 2004, 2002, 2001, 2000, 1999, 1997, 1995. The topic has appeared in 16 out of 31 years.
Among 21 questions on Oceanography: 8 are easy, 12 are moderate, and 1 are difficult. Most questions test conceptual understanding of the topic.
