UPSC Insta–DART (Daily Aptitude and Reasoning Test) 2 Sep 2025

Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too.We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.

Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).

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• Question 1 of 5 1. Question The rapid expansion of satellite launches, particularly by private companies, has increased the amount of debris orbiting Earth. Disused satellites, rocket stages, and collision fragments threaten active spacecraft and the International Space Station. While global treaties like the Outer Space Treaty set broad principles, they lack binding enforcement mechanisms for debris mitigation. Individual nations have developed guidelines, but their voluntary nature limits effectiveness. Without coordinated international governance, the risk of cascading collisions—known as the Kessler Syndrome—could render key orbital zones unusable, disrupting navigation, communication, and climate monitoring systems. The challenge lies in balancing commercial space growth with stringent debris management, ensuring space remains a safe and sustainable domain for all. In the context of the above passage, what is the central paradox that the passage highlights? (a) Space exploration fosters technological progress but also creates risks that threaten its own future. (b) Space debris threatens satellites but not ground-based communication systems. (c) International treaties regulate debris management but allow unlimited satellite launches. (d) Commercial space growth and debris mitigation are mutually exclusive goals. Correct Solution: (a) Explanation: • The paradox is that the same activity—satellite launches—drives progress while endangering the long-term usability of space. • Option (b) is inaccurate — the passage notes threats to multiple space-based systems. • Option (c) is misleading — treaties are broad, not strictly debris-focused. • Option (d) is wrong — the passage seeks balance, not exclusion. Incorrect Solution: (a) Explanation: • The paradox is that the same activity—satellite launches—drives progress while endangering the long-term usability of space. • Option (b) is inaccurate — the passage notes threats to multiple space-based systems. • Option (c) is misleading — treaties are broad, not strictly debris-focused. • Option (d) is wrong — the passage seeks balance, not exclusion.

#### 1. Question

The rapid expansion of satellite launches, particularly by private companies, has increased the amount of debris orbiting Earth. Disused satellites, rocket stages, and collision fragments threaten active spacecraft and the International Space Station. While global treaties like the Outer Space Treaty set broad principles, they lack binding enforcement mechanisms for debris mitigation. Individual nations have developed guidelines, but their voluntary nature limits effectiveness. Without coordinated international governance, the risk of cascading collisions—known as the Kessler Syndrome—could render key orbital zones unusable, disrupting navigation, communication, and climate monitoring systems. The challenge lies in balancing commercial space growth with stringent debris management, ensuring space remains a safe and sustainable domain for all.

In the context of the above passage, what is the central paradox that the passage highlights?

• (a) Space exploration fosters technological progress but also creates risks that threaten its own future.

• (b) Space debris threatens satellites but not ground-based communication systems.

• (c) International treaties regulate debris management but allow unlimited satellite launches.

• (d) Commercial space growth and debris mitigation are mutually exclusive goals.

Solution: (a)

Explanation: • The paradox is that the same activity—satellite launches—drives progress while endangering the long-term usability of space. • Option (b) is inaccurate — the passage notes threats to multiple space-based systems. • Option (c) is misleading — treaties are broad, not strictly debris-focused. • Option (d) is wrong — the passage seeks balance, not exclusion.

Solution: (a)

• Question 2 of 5 2. Question With reference to the above passage, the following assumptions have been made: Voluntary national guidelines are insufficient to address the global challenge of space debris. The absence of binding international rules increases the likelihood of large-scale orbital collisions. Limiting private satellite launches is the only solution to space debris management. Select the correct answer using the code given below: (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3 Correct Solution: (a) Explanation: • Statement 1: Valid — the text notes that voluntary guidelines lack effectiveness in solving the problem. • Statement 2: Valid — without binding rules, the risk of cascading collisions like the Kessler Syndrome increases. • Statement 3: Not valid — the passage calls for balance, not an outright halt to private launches. Incorrect Solution: (a) Explanation: • Statement 1: Valid — the text notes that voluntary guidelines lack effectiveness in solving the problem. • Statement 2: Valid — without binding rules, the risk of cascading collisions like the Kessler Syndrome increases. • Statement 3: Not valid — the passage calls for balance, not an outright halt to private launches.

#### 2. Question

With reference to the above passage, the following assumptions have been made:

• Voluntary national guidelines are insufficient to address the global challenge of space debris.

• The absence of binding international rules increases the likelihood of large-scale orbital collisions.

• Limiting private satellite launches is the only solution to space debris management.

Select the correct answer using the code given below:

• (a) 1 and 2 only

• (b) 1 and 3 only

• (c) 2 and 3 only

• (d) 1, 2 and 3

Solution: (a)

Explanation: • Statement 1: Valid — the text notes that voluntary guidelines lack effectiveness in solving the problem. • Statement 2: Valid — without binding rules, the risk of cascading collisions like the Kessler Syndrome increases. • Statement 3: Not valid — the passage calls for balance, not an outright halt to private launches.

Solution: (a)

• Question 3 of 5 3. Question In an increasingly digitized world, personal data has emerged as both a valuable asset and a potential liability. The convenience of online services often masks the extent to which individuals unknowingly trade privacy for accessibility. While regulatory frameworks such as data protection laws seek to safeguard users, their effectiveness is hampered by inconsistent enforcement and opaque corporate practices. Over-reliance on privacy policies—dense and seldom read—places an unrealistic burden on individuals to self-protect in a highly technical domain. Data breaches, unauthorized profiling, and targeted manipulation highlight that responsibility cannot rest solely with end-users. Effective digital privacy safeguards demand a combination of robust legal standards, transparent corporate accountability, and informed public participation to ensure technology serves democratic and ethical ends rather than exploiting vulnerabilities. Based on the passage, consider the following assumptions: Sole reliance on individual vigilance is inadequate for ensuring comprehensive digital privacy protection. The primary obstacle to safeguarding personal data is the unwillingness of individuals to read privacy policies. Select the correct answer using the code given below: (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2 Correct Solution: (a) Explanation: • Statement 1 is valid: The passage clearly states that user vigilance alone is insufficient and calls for legal and corporate measures. • Statement 2 is invalid: While unread privacy policies are noted, the passage points to systemic issues like lax enforcement and opaque practices as primary concerns. Incorrect Solution: (a) Explanation: • Statement 1 is valid: The passage clearly states that user vigilance alone is insufficient and calls for legal and corporate measures. • Statement 2 is invalid: While unread privacy policies are noted, the passage points to systemic issues like lax enforcement and opaque practices as primary concerns.

#### 3. Question

In an increasingly digitized world, personal data has emerged as both a valuable asset and a potential liability. The convenience of online services often masks the extent to which individuals unknowingly trade privacy for accessibility. While regulatory frameworks such as data protection laws seek to safeguard users, their effectiveness is hampered by inconsistent enforcement and opaque corporate practices. Over-reliance on privacy policies—dense and seldom read—places an unrealistic burden on individuals to self-protect in a highly technical domain. Data breaches, unauthorized profiling, and targeted manipulation highlight that responsibility cannot rest solely with end-users. Effective digital privacy safeguards demand a combination of robust legal standards, transparent corporate accountability, and informed public participation to ensure technology serves democratic and ethical ends rather than exploiting vulnerabilities.

Based on the passage, consider the following assumptions:

• Sole reliance on individual vigilance is inadequate for ensuring comprehensive digital privacy protection.

• The primary obstacle to safeguarding personal data is the unwillingness of individuals to read privacy policies.

Select the correct answer using the code given below:

• (a) 1 only

• (b) 2 only

• (c) Both 1 and 2

• (d) Neither 1 nor 2

Solution: (a)

Explanation: • Statement 1 is valid: The passage clearly states that user vigilance alone is insufficient and calls for legal and corporate measures. • Statement 2 is invalid: While unread privacy policies are noted, the passage points to systemic issues like lax enforcement and opaque practices as primary concerns.

Solution: (a)

• Question 4 of 5 4. Question Which one of the following statements best reflects the central idea of the above passage? (a) Protecting digital privacy is solely the responsibility of individual users who must be more vigilant online. (b) Effective digital privacy protection requires coordinated action between laws, corporate transparency, and public awareness. (c) Data breaches are inevitable in the modern era, making privacy protection unrealistic. (d) Corporations should be allowed to use personal data freely in exchange for free online services. Correct Solution: (b) Explanation: • Option (b) captures the core argument that privacy protection must combine regulation, accountability, and user awareness. • Options (a), (c), and (d) contradict the passage’s emphasis on collective responsibility and the possibility of effective safeguards. Incorrect Solution: (b) Explanation: • Option (b) captures the core argument that privacy protection must combine regulation, accountability, and user awareness. • Options (a), (c), and (d) contradict the passage’s emphasis on collective responsibility and the possibility of effective safeguards.

#### 4. Question

Which one of the following statements best reflects the central idea of the above passage?

• (a) Protecting digital privacy is solely the responsibility of individual users who must be more vigilant online.

• (b) Effective digital privacy protection requires coordinated action between laws, corporate transparency, and public awareness.

• (c) Data breaches are inevitable in the modern era, making privacy protection unrealistic.

• (d) Corporations should be allowed to use personal data freely in exchange for free online services.

Solution: (b)

Explanation: • Option (b) captures the core argument that privacy protection must combine regulation, accountability, and user awareness. • Options (a), (c), and (d) contradict the passage’s emphasis on collective responsibility and the possibility of effective safeguards.

Solution: (b)

• Question 5 of 5 5. Question The circumference of a circle and the perimeter of a rectangle are in the ratio of π : 2. Find the ratio of their areas if the radius of the circle equals one of the sides of the rectangle. (a) π : 1 (b) π : 2 (c) π : 3 (d) π : 4 Correct Answer: (a) Solution Let the radius of the circle be r cm. Let the length and the breadth of the rectangle be l cm and b cm respectively. The circumference of the circle and the perimeter of the rectangle are in the ratio of π : 2. So, (2 πr)/[2 (l + b)] = π/2 Or (π/2) [2 (l + b)] = 2 πr Or π (l + b) = 2 πr Or l + b = 2r Radius of the circle equals one of the sides of the rectangle. If l = r, then b = r If b = r, then l = r In either case, l = b = r Required ratio = πr2 : lb = πr2 : r×r = π : 1 Hence, option (a) is the right answer. Incorrect Answer: (a) Solution Let the radius of the circle be r cm. Let the length and the breadth of the rectangle be l cm and b cm respectively. The circumference of the circle and the perimeter of the rectangle are in the ratio of π : 2. So, (2 πr)/[2 (l + b)] = π/2 Or (π/2) [2 (l + b)] = 2 πr Or π (l + b) = 2 πr Or l + b = 2r Radius of the circle equals one of the sides of the rectangle. If l = r, then b = r If b = r, then l = r In either case, l = b = r Required ratio = πr2 : lb = πr2 : r×r = π : 1 Hence, option (a) is the right answer.

#### 5. Question

The circumference of a circle and the perimeter of a rectangle are in the ratio of π : 2. Find the

ratio of their areas if the radius of the circle equals one of the sides of the rectangle.

Answer: (a)

Let the radius of the circle be r cm.

Let the length and the breadth of the rectangle be l cm and b cm respectively. The circumference of the circle and the perimeter of the rectangle are in the ratio of π : 2.

So, (2 πr)/[2 (l + b)] = π/2 Or (π/2) [2 (l + b)] = 2 πr Or π (l + b) = 2 πr

Or l + b = 2r

Radius of the circle equals one of the sides of the rectangle.

If l = r, then b = r

If b = r, then l = r

In either case, l = b = r

Required ratio = πr2 : lb = πr2 : r×r = π : 1

Hence, option (a) is the right answer.

Answer: (a)

Let the radius of the circle be r cm.

Let the length and the breadth of the rectangle be l cm and b cm respectively. The circumference of the circle and the perimeter of the rectangle are in the ratio of π : 2.

So, (2 πr)/[2 (l + b)] = π/2 Or (π/2) [2 (l + b)] = 2 πr Or π (l + b) = 2 πr

Or l + b = 2r

Radius of the circle equals one of the sides of the rectangle.

If l = r, then b = r

If b = r, then l = r

In either case, l = b = r

Required ratio = πr2 : lb = πr2 : r×r = π : 1

Hence, option (a) is the right answer.

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