UPSC Editorials Quiz : 20 August 2025

Introducing QUED – Questions from Editorials (UPSC Editorials Quiz) , an innovative initiative from InsightsIAS. Considering the significant number of questions in previous UPSC Prelims from editorials, practicing MCQs from this perspective can provide an extra edge. While we cover important editorials separately in our Editorial Section and SECURE Initiative, adding QUED (UPSC Editorials Quiz) to your daily MCQ practice alongside Static Quiz, Current Affairs Quiz, and InstaDART can be crucial for better performance. We recommend utilizing this initiative to enhance your preparation, with 5 MCQs posted daily at 11 am from Monday to Saturday on our website under the QUIZ menu.

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• Question 1 of 5 1. Question Which of the following is the primary benefit of using electric propulsion in ISRO’s Technology Demonstrator Satellite (TDS-1)? a) Enables satellites to orbit closer to Earth than standard geostationary satellites b) Reduces communication delays with ground stations c) Enhances the satellite's data transmission speed d) Decreases satellite weight by minimizing chemical fuel dependency Correct Solution: D The primary benefit of electric propulsion technology in ISRO’s TDS-1 is the significant reduction in satellite weight by minimizing the need for heavy chemical fuel. Traditional chemical propulsion systems require a large amount of fuel for maneuvering satellites into their designated orbits, which increases satellite mass. By using electric propulsion, ISRO aims to achieve more efficient use of fuel through ionized gas propulsion, where gases like Argon are ionized using solar energy to produce thrust. This approach drastically reduces fuel mass, effectively lowering the satellite’s overall weight by up to half. The lighter weight allows the satellite to carry more payloads or additional instruments, enhancing its utility. Incorrect Solution: D The primary benefit of electric propulsion technology in ISRO’s TDS-1 is the significant reduction in satellite weight by minimizing the need for heavy chemical fuel. Traditional chemical propulsion systems require a large amount of fuel for maneuvering satellites into their designated orbits, which increases satellite mass. By using electric propulsion, ISRO aims to achieve more efficient use of fuel through ionized gas propulsion, where gases like Argon are ionized using solar energy to produce thrust. This approach drastically reduces fuel mass, effectively lowering the satellite’s overall weight by up to half. The lighter weight allows the satellite to carry more payloads or additional instruments, enhancing its utility.

#### 1. Question

Which of the following is the primary benefit of using electric propulsion in ISRO’s Technology Demonstrator Satellite (TDS-1)?

• a) Enables satellites to orbit closer to Earth than standard geostationary satellites

• b) Reduces communication delays with ground stations

• c) Enhances the satellite's data transmission speed

• d) Decreases satellite weight by minimizing chemical fuel dependency

Solution: D

• The primary benefit of electric propulsion technology in ISRO’s TDS-1 is the significant reduction in satellite weight by minimizing the need for heavy chemical fuel.

• Traditional chemical propulsion systems require a large amount of fuel for maneuvering satellites into their designated orbits, which increases satellite mass.

• By using electric propulsion, ISRO aims to achieve more efficient use of fuel through ionized gas propulsion, where gases like Argon are ionized using solar energy to produce thrust.

• This approach drastically reduces fuel mass, effectively lowering the satellite’s overall weight by up to half.

• The lighter weight allows the satellite to carry more payloads or additional instruments, enhancing its utility.

Solution: D

• The primary benefit of electric propulsion technology in ISRO’s TDS-1 is the significant reduction in satellite weight by minimizing the need for heavy chemical fuel.

• Traditional chemical propulsion systems require a large amount of fuel for maneuvering satellites into their designated orbits, which increases satellite mass.

• By using electric propulsion, ISRO aims to achieve more efficient use of fuel through ionized gas propulsion, where gases like Argon are ionized using solar energy to produce thrust.

• This approach drastically reduces fuel mass, effectively lowering the satellite’s overall weight by up to half.

• The lighter weight allows the satellite to carry more payloads or additional instruments, enhancing its utility.

• Question 2 of 5 2. Question Consider the following statements about medicinal foods and their health benefits: Turmeric is effective for its anti-inflammatory properties, but high doses can present health risks. Lemon’s benefits as an immunity booster vary depending on the cultivar or variety. Ashwagandha is valued in Ayurveda for its impact on mental focus and stress reduction. Giloy is mainly consumed for improving hair health and supporting liver function. Which of the above statements are correct? (a) 1 and 2 only (b) 1, 3, and 4 only (c) 1, 2 and 3 only (d) 1, 2, 3 and 4 Correct Solution: C Statement 1 is correct as turmeric is widely known for its anti-inflammatory and antioxidant properties, although high doses can lead to adverse effects, thus requiring regulated dosage. Statement 2 is also correct; lemon’s vitamin C content and immunity-boosting benefits indeed vary by cultivar and variety. Statement 3 is correct, as Ashwagandha is celebrated in Ayurveda for reducing stress and enhancing mental focus. Statement 4 is incorrect because Giloy is primarily known for its immunity-boosting properties and fever reduction, rather than for hair or liver health, which are benefits more commonly associated with Bhringaraj. Incorrect Solution: C Statement 1 is correct as turmeric is widely known for its anti-inflammatory and antioxidant properties, although high doses can lead to adverse effects, thus requiring regulated dosage. Statement 2 is also correct; lemon’s vitamin C content and immunity-boosting benefits indeed vary by cultivar and variety. Statement 3 is correct, as Ashwagandha is celebrated in Ayurveda for reducing stress and enhancing mental focus. Statement 4 is incorrect because Giloy is primarily known for its immunity-boosting properties and fever reduction, rather than for hair or liver health, which are benefits more commonly associated with Bhringaraj.

#### 2. Question

Consider the following statements about medicinal foods and their health benefits:

• Turmeric is effective for its anti-inflammatory properties, but high doses can present health risks.

• Lemon’s benefits as an immunity booster vary depending on the cultivar or variety.

• Ashwagandha is valued in Ayurveda for its impact on mental focus and stress reduction.

• Giloy is mainly consumed for improving hair health and supporting liver function.

Which of the above statements are correct?

• (a) 1 and 2 only

• (b) 1, 3, and 4 only

• (c) 1, 2 and 3 only

• (d) 1, 2, 3 and 4

Solution: C

Statement 1 is correct as turmeric is widely known for its anti-inflammatory and antioxidant properties, although high doses can lead to adverse effects, thus requiring regulated dosage.

Statement 2 is also correct; lemon’s vitamin C content and immunity-boosting benefits indeed vary by cultivar and variety.

Statement 3 is correct, as Ashwagandha is celebrated in Ayurveda for reducing stress and enhancing mental focus.

Statement 4 is incorrect because Giloy is primarily known for its immunity-boosting properties and fever reduction, rather than for hair or liver health, which are benefits more commonly associated with Bhringaraj.

Solution: C

Statement 1 is correct as turmeric is widely known for its anti-inflammatory and antioxidant properties, although high doses can lead to adverse effects, thus requiring regulated dosage.

Statement 2 is also correct; lemon’s vitamin C content and immunity-boosting benefits indeed vary by cultivar and variety.

Statement 3 is correct, as Ashwagandha is celebrated in Ayurveda for reducing stress and enhancing mental focus.

• Question 3 of 5 3. Question Consider the following statements about hydroponics: Hydroponics relies on nutrient-rich soil that is periodically flooded and drained to nourish plants. This method is best suited for outdoor environments where ample sunlight can support plant growth. Hydroponics allows for greater control over nutrient levels, which can result in higher yields in limited spaces. How many of the above statements is/are incorrect? a) Only one b) Only two c) All three d) None Correct Solution: B Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil. Statement 2 is also incorrect, as hydroponics is often used in controlled indoor environments rather than outdoors. This setup allows for precise control of light, temperature, and nutrients, essential in spaces where outdoor conditions are unfavorable. Statement 3 is correct; hydroponics offers significant control over nutrient levels, water, and growth conditions, leading to higher yields even in limited spaces. The controlled environment reduces risks of pests and diseases, and maximizes efficiency, making it ideal for urban agriculture or areas with limited agricultural land. Incorrect Solution: B Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil. Statement 2 is also incorrect, as hydroponics is often used in controlled indoor environments rather than outdoors. This setup allows for precise control of light, temperature, and nutrients, essential in spaces where outdoor conditions are unfavorable. Statement 3 is correct; hydroponics offers significant control over nutrient levels, water, and growth conditions, leading to higher yields even in limited spaces. The controlled environment reduces risks of pests and diseases, and maximizes efficiency, making it ideal for urban agriculture or areas with limited agricultural land.

#### 3. Question

Consider the following statements about hydroponics:

• Hydroponics relies on nutrient-rich soil that is periodically flooded and drained to nourish plants.

• This method is best suited for outdoor environments where ample sunlight can support plant growth.

• Hydroponics allows for greater control over nutrient levels, which can result in higher yields in limited spaces.

How many of the above statements is/are incorrect?

• a) Only one

• b) Only two

• c) All three

Solution: B

Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil.

Statement 2 is also incorrect, as hydroponics is often used in controlled indoor environments rather than outdoors. This setup allows for precise control of light, temperature, and nutrients, essential in spaces where outdoor conditions are unfavorable.

Statement 3 is correct; hydroponics offers significant control over nutrient levels, water, and growth conditions, leading to higher yields even in limited spaces. The controlled environment reduces risks of pests and diseases, and maximizes efficiency, making it ideal for urban agriculture or areas with limited agricultural land.

Solution: B

Statement 1 is incorrect because hydroponics is a soil-free method; instead, it uses nutrient-rich water solutions to grow plants, eliminating the need for soil.

• Question 4 of 5 4. Question Consider the following statements regarding the structure and operations of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO): The CTBTO operates under the United Nations Security Council, which oversees its verification activities. The Provisional Technical Secretariat (PTS) is responsible for establishing the International Monitoring System to detect nuclear explosions. Funding for the CTBTO is derived from voluntary contributions by states that have ratified the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Which of the above statements are correct? (a) 2 only (b) 1 and 2 only (c) 2 and 3 only (d) 1, 2 and 3 Correct Solution: A Statement 1 is incorrect as the CTBTO operates independently of the United Nations Security Council, although it collaborates with various international organizations. Its verification and monitoring efforts are self-managed under its own mandate. Statement 2 is correct; the Provisional Technical Secretariat (PTS) is indeed tasked with establishing the International Monitoring System (IMS) to detect nuclear explosions worldwide. Statement 3 is incorrect because the CTBTO’s funding comes from mandatory contributions by member states, not voluntary donations. This funding model supports the development and maintenance of its verification infrastructure, ensuring operational continuity as it prepares for the CTBT’s full implementation. Incorrect Solution: A Statement 1 is incorrect as the CTBTO operates independently of the United Nations Security Council, although it collaborates with various international organizations. Its verification and monitoring efforts are self-managed under its own mandate. Statement 2 is correct; the Provisional Technical Secretariat (PTS) is indeed tasked with establishing the International Monitoring System (IMS) to detect nuclear explosions worldwide. Statement 3 is incorrect because the CTBTO’s funding comes from mandatory contributions by member states, not voluntary donations. This funding model supports the development and maintenance of its verification infrastructure, ensuring operational continuity as it prepares for the CTBT’s full implementation.

#### 4. Question

Consider the following statements regarding the structure and operations of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO):

• The CTBTO operates under the United Nations Security Council, which oversees its verification activities.

• The Provisional Technical Secretariat (PTS) is responsible for establishing the International Monitoring System to detect nuclear explosions.

• Funding for the CTBTO is derived from voluntary contributions by states that have ratified the Comprehensive Nuclear-Test-Ban Treaty (CTBT).

Which of the above statements are correct?

• (a) 2 only

• (b) 1 and 2 only

• (c) 2 and 3 only

• (d) 1, 2 and 3

Solution: A

Statement 1 is incorrect as the CTBTO operates independently of the United Nations Security Council, although it collaborates with various international organizations. Its verification and monitoring efforts are self-managed under its own mandate.

Statement 2 is correct; the Provisional Technical Secretariat (PTS) is indeed tasked with establishing the International Monitoring System (IMS) to detect nuclear explosions worldwide.

Statement 3 is incorrect because the CTBTO’s funding comes from mandatory contributions by member states, not voluntary donations. This funding model supports the development and maintenance of its verification infrastructure, ensuring operational continuity as it prepares for the CTBT’s full implementation.

Solution: A

Statement 2 is correct; the Provisional Technical Secretariat (PTS) is indeed tasked with establishing the International Monitoring System (IMS) to detect nuclear explosions worldwide.

• Question 5 of 5 5. Question Match the following Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) International Monitoring System (IMS) technologies with their respective purposes: List I (Technology) List II (Purpose) A. Seismic 1. Detects underwater nuclear explosions B. Hydroacoustic 2. Detects low-frequency sounds from atmospheric nuclear explosions C. Infrasound 3. Monitors ground shockwaves from underground explosions D. Radionuclide 4. Confirms nuclear explosions by detecting radioactive particles Select the correct answer code: a) A-1, B-3, C-2, D-4 b) A-3, B-1, C-2, D-4 c) A-1, B-2, C-3, D-4 d) A-2, B-3, C-4, D-1 Correct Solution: B A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions. B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water. C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests. D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions. Incorrect Solution: B A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions. B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water. C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests. D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions.

#### 5. Question

Match the following Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) International Monitoring System (IMS) technologies with their respective purposes:

List I (Technology) | List II (Purpose)

A. Seismic | 1. Detects underwater nuclear explosions

B. Hydroacoustic | 2. Detects low-frequency sounds from atmospheric nuclear explosions

C. Infrasound | 3. Monitors ground shockwaves from underground explosions

D. Radionuclide | 4. Confirms nuclear explosions by detecting radioactive particles

Select the correct answer code:

• a) A-1, B-3, C-2, D-4

• b) A-3, B-1, C-2, D-4

• c) A-1, B-2, C-3, D-4

• d) A-2, B-3, C-4, D-1

Solution: B

• A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions.

• B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water.

• C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests.

• D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions.

Solution: B

• A (Seismic) – 3: Seismic technology detects ground shockwaves and vibrations, making it effective for monitoring underground nuclear explosions.

• B (Hydroacoustic) – 1: Hydroacoustic technology identifies underwater nuclear explosions by monitoring sound waves that travel through water.

• C (Infrasound) – 2: Infrasound technology is designed to detect low-frequency sounds in the atmosphere, useful for identifying atmospheric nuclear tests.

• D (Radionuclide) – 4: Radionuclide technology confirms nuclear tests by detecting radioactive particles in the air, which are direct indicators of nuclear explosions.

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