IASbaba Daily Prelims Quiz
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The Current Affairs questions are based on sources like ‘The Hindu’, ‘Indian Express’ and ‘PIB’, which are very important sources for UPSC Prelims Exam. The questions are focused on both the concepts and facts. The topics covered here are generally different from what is being covered under ‘Daily Current Affairs/Daily News Analysis (DNA) and Daily Static Quiz’ to avoid duplication. The questions would be published from Monday to Saturday before 2 PM. One should not spend more than 10 minutes on this initiative.
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Question 1 of 5
1. Question
Consider the following statements with respect to ‘Carbon nanoflorets’
Statement 1 – It can absorb sunlight at many frequencies and convert it to heat with unprecedented efficiency
Statement 2 – The nanoflorets absorb frequencies in infrared, visible light, and ultraviolet while other common materials absorb only visible light
Which one of the following is correct in respect of the above statements?
Correct
Solution (c)
Statement Analysis:
Statement 1 Statement 2 Correct Incorrect Carbon nanoflorets are like tiny marigold flowers made only of carbon, which are called as the material carbon nanoflorets. They reported that these nanoflorets could absorb sunlight at many frequencies and convert it to heat with unprecedented efficiency. The nanoflorets converted the light energy they absorbed into thermal energy—a process called solar-thermal conversion—with a remarkable efficiency of 87%. The carbon nanoflorets’ high efficiency comes from three properties. The nanoflorets absorb three frequencies in sunlight – infrared, visible light, and ultraviolet, while other common materials absorb only visible and ultraviolet light. Shape: As light falls on the material, the carbon cones ensure that very little is reflected back. Llong-range disorder: Parts of the structure at some distance from each other possess different physical properties. As a result, heat waves in the material aren’t carried over long distances, reducing the amount of heat dissipated away. Context – Carbon nanoflorets made by IIT Bombay researchers can convert incident sunlight to heat with 87% efficiency.
Incorrect
Solution (c)
Statement Analysis:
Statement 1 Statement 2 Correct Incorrect Carbon nanoflorets are like tiny marigold flowers made only of carbon, which are called as the material carbon nanoflorets. They reported that these nanoflorets could absorb sunlight at many frequencies and convert it to heat with unprecedented efficiency. The nanoflorets converted the light energy they absorbed into thermal energy—a process called solar-thermal conversion—with a remarkable efficiency of 87%. The carbon nanoflorets’ high efficiency comes from three properties. The nanoflorets absorb three frequencies in sunlight – infrared, visible light, and ultraviolet, while other common materials absorb only visible and ultraviolet light. Shape: As light falls on the material, the carbon cones ensure that very little is reflected back. Llong-range disorder: Parts of the structure at some distance from each other possess different physical properties. As a result, heat waves in the material aren’t carried over long distances, reducing the amount of heat dissipated away. Context – Carbon nanoflorets made by IIT Bombay researchers can convert incident sunlight to heat with 87% efficiency.
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Question 2 of 5
2. Question
Consider the following statements with respect to ‘Aerogels’
- They are a class of synthetic porous ultralight material in which the liquid component for the gel has been replaced with a gas
- They are good thermal conductors because they support two of the three methods of heat transfer
- They offer advantages like adjustable surface chemistry, low density, and a highly porous structure
How many of the statement(s) given above are correct
Correct
Solution (b)
Statement Analysis:
Statement 1 Statement 2 Statement 3 Correct Incorrect Correct Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure. Aerogels are good thermal insulators because they almost nullify two of the three methods of heat transfer – conduction (they are mostly composed of insulating gas) and convection (the microstructure prevents net gas movement). They are good conductive insulators because they are composed almost entirely of gases, which are very poor heat conductors They, also known as ‘solid air’ or ‘frozen smoke’, are excellent adsorbents (a solid substance used to remove contaminants) and are incredibly lightweight solids composed mostly of air. In addition, they offer advantages like adjustable surface chemistry, low density, and a highly porous structure. Context – Researchers at the Indian Institute of Technology Madras and Tel Aviv University have developed an aerogel adsorbent that can remove trace pollutants from wastewater.
Incorrect
Solution (b)
Statement Analysis:
Statement 1 Statement 2 Statement 3 Correct Incorrect Correct Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure. Aerogels are good thermal insulators because they almost nullify two of the three methods of heat transfer – conduction (they are mostly composed of insulating gas) and convection (the microstructure prevents net gas movement). They are good conductive insulators because they are composed almost entirely of gases, which are very poor heat conductors They, also known as ‘solid air’ or ‘frozen smoke’, are excellent adsorbents (a solid substance used to remove contaminants) and are incredibly lightweight solids composed mostly of air. In addition, they offer advantages like adjustable surface chemistry, low density, and a highly porous structure. Context – Researchers at the Indian Institute of Technology Madras and Tel Aviv University have developed an aerogel adsorbent that can remove trace pollutants from wastewater.
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Question 3 of 5
3. Question
Consider the following statements with respect to ‘District Central Co-operative Banks’
- It provides finance to all the co-operative societies in the district and works as a banker of state government at the district level
- Reserve Bank of India (RBI) regulates and supervises the banking functions of District Central Cooperative Banks (DCCBs) under the Banking Regulation Act
- It acts as a balancing centre for the Primary Agricultural Credit Societies (PACS) by diverting the surplus funds of some societies to others
How many of the statement(s) given above are correct
Correct
Solution (c)
Statement Analysis:
Statement 1 Statement 2 Statement 3 Correct Correct Correct DCCB provides finance to all the co-operative societies in the district, conducts activities, and provides banking services according to the provisions of the co-operative act and banking act. At the district level, DCCB works as a banker of state government. Educational institutions, Zilla Parishad, Panchayat Samiti, Gram Panchayat, cooperative societies, etc have accounts in this bank. Reserve Bank of India (RBI) regulates and supervises the banking functions of State Cooperative Banks (StCBs)/District Central Cooperative Banks (DCCBs)/Urban Cooperative Banks (UCBs) under the various provisions of the Banking Regulation Act, 1949. One of the main functions of the DCCBs are to act as a balancing centre for the Primary Agricultural Credit Societies (PACS) by diverting the surplus funds of some societies to those which face shortages of funds Context – The RBI recently said District Central Co-operative Banks are allowed to close their un-remunerative branches without prior permission of the central bank.
Incorrect
Solution (c)
Statement Analysis:
Statement 1 Statement 2 Statement 3 Correct Correct Correct DCCB provides finance to all the co-operative societies in the district, conducts activities, and provides banking services according to the provisions of the co-operative act and banking act. At the district level, DCCB works as a banker of state government. Educational institutions, Zilla Parishad, Panchayat Samiti, Gram Panchayat, cooperative societies, etc have accounts in this bank. Reserve Bank of India (RBI) regulates and supervises the banking functions of State Cooperative Banks (StCBs)/District Central Cooperative Banks (DCCBs)/Urban Cooperative Banks (UCBs) under the various provisions of the Banking Regulation Act, 1949. One of the main functions of the DCCBs are to act as a balancing centre for the Primary Agricultural Credit Societies (PACS) by diverting the surplus funds of some societies to those which face shortages of funds Context – The RBI recently said District Central Co-operative Banks are allowed to close their un-remunerative branches without prior permission of the central bank.
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Question 4 of 5
4. Question
‘Commodity Markets Outlook report’ is published by
Correct
Solution (d)
Commodity Markets Outlook Report is published by the World Bank in April and October, every year. Commodity Markets Outlook report provides market analysis for major commodity groups – energy, metals, agriculture, precious metals, and fertilizers. The report forecasts prices for 46 key commodities.
Context – The World Bank has published the Commodity Markets Outlook report.
Incorrect
Solution (d)
Commodity Markets Outlook Report is published by the World Bank in April and October, every year. Commodity Markets Outlook report provides market analysis for major commodity groups – energy, metals, agriculture, precious metals, and fertilizers. The report forecasts prices for 46 key commodities.
Context – The World Bank has published the Commodity Markets Outlook report.
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Question 5 of 5
5. Question
Consider the following statements about ‘Sardar Vallabhbhai Patel’
- He supported and assisted Mahatma Gandhi in organizing and leading the Champaran Satyagraha
- He was President of the Lahore Session (1931) of the Indian National Congress
- He headed Advisory Committee on Fundamental Rights and Provincial Constitution Committee
How many of the statement(s) given above are correct
Correct
Solution (a)
Statement Analysis:
Statement 1 Statement 2 Statement 3 Incorrect Incorrect Correct Patel supported and assisted Mahatma Gandhi in organising and leading the Kheda Satyagraha (1917). He also took active part in Bardoli Satyagraha He was President of the Karachi Session(1931) of the Indian National Congress. Karachi Session called upon to ratify the Gandhi-Irwin Pact, and known for passing a resolution of Fundamental Rights. He headed various Constitutional Committees, such as Advisory Committee on Fundamental Rights, Committee on Minorities and Tribal and Excluded Areas, Provincial Constitution Committee. Context – The Prime Minister of India has paid tributes to Sardar Patel on his Jayanti.
Incorrect
Solution (a)
Statement Analysis:
Statement 1 Statement 2 Statement 3 Incorrect Incorrect Correct Patel supported and assisted Mahatma Gandhi in organising and leading the Kheda Satyagraha (1917). He also took active part in Bardoli Satyagraha He was President of the Karachi Session(1931) of the Indian National Congress. Karachi Session called upon to ratify the Gandhi-Irwin Pact, and known for passing a resolution of Fundamental Rights. He headed various Constitutional Committees, such as Advisory Committee on Fundamental Rights, Committee on Minorities and Tribal and Excluded Areas, Provincial Constitution Committee. Context – The Prime Minister of India has paid tributes to Sardar Patel on his Jayanti.
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