71
A research team at ISRO discovers that their satellite communication system experiences intermittent signal loss every 45 minutes during orbital passes over the Indian Ocean region. The team has identified four potential causes: (1) Atmospheric interference, (2) Hardware malfunction in the transponder, (3) Solar panel orientation affecting power supply, (4) Ground station antenna alignment issues. Given that the problem occurs only over a specific geographic region and at regular intervals, what is the most logical systematic approach to isolate the root cause? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Test all four potential causes simultaneously to save time and resources
B. Start with the most expensive solution first to ensure comprehensive coverage
C. Analyze the correlation between orbital mechanics, geographic location, and power systems first, then test hardware components
D. Replace all communication equipment as a precautionary measure
💡 The systematic approach should begin with analyzing patterns and correlations. Since the problem is location-specific and time-regular, examining orbital mechanics, geographic factors, and power systems provides the most logical starting point before moving to hardware diagnostics.
72
A DRDO laboratory faces a critical decision: they have developed two competing missile guidance systems. System A has 95% accuracy but requires rare earth materials costing ₹50 crores per unit. System B has 88% accuracy using readily available materials costing ₹15 crores per unit. The military requires 200 units within 18 months, but rare earth material availability is uncertain due to geopolitical tensions. What strategic decision framework should be applied? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Choose System A regardless of cost due to superior accuracy
B. Evaluate the acceptable accuracy threshold for mission requirements, assess supply chain risks, and consider hybrid deployment strategies
C. Always select the lower-cost option to maximize budget efficiency
D. Delay the project until rare earth materials become more readily available
💡 Strategic decision-making requires comprehensive evaluation of mission requirements, risk assessment, and contingency planning. This includes determining minimum acceptable performance thresholds and considering hybrid approaches that balance performance, cost, and supply chain reliability.
73
During a critical nuclear reactor maintenance operation at BARC, operators notice an unexpected temperature gradient in the cooling system. The gradient is within safety limits but deviates from historical patterns. Three departments provide different recommendations: Safety team suggests immediate shutdown, Operations team recommends continued monitoring, and Engineering team proposes partial power reduction while investigating. How should the situation be analyzed? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Follow the most conservative recommendation automatically
B. Conduct a structured risk analysis considering safety margins, operational impact, diagnostic capabilities, and regulatory compliance requirements
C. Continue normal operations since parameters are within safety limits
D. Take a vote among the three departments to reach consensus
💡 Nuclear facility decision-making requires structured risk analysis that weighs safety margins, potential consequences, diagnostic capabilities, and regulatory requirements. This ensures all factors are systematically evaluated rather than relying on single-perspective recommendations.
74
An ISRO mission control team faces a spacecraft anomaly: the Mars orbiter's solar panels are generating 15% less power than expected, and they must choose between three operational modes for the next 6 months. Mode 1: Full scientific operations with 90% mission success probability but risk of complete power loss. Mode 2: Reduced operations with 98% success probability but 60% science return. Mode 3: Minimal operations with 99.5% success probability but only 30% science return. What decision analysis approach is most appropriate? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Calculate expected value by multiplying success probability with science return percentage
B. Always choose the option with highest mission success probability
C. Perform multi-criteria decision analysis considering mission objectives, risk tolerance, scientific value, and recovery possibilities
D. Select the middle option as a compromise between all factors
💡 Complex space mission decisions require multi-criteria analysis that systematically evaluates all relevant factors including mission objectives, acceptable risk levels, scientific value, and potential for system recovery, rather than optimizing for a single parameter.
75
A DRDO team developing radar systems discovers that their new technology performs excellently in laboratory conditions but shows degraded performance in field trials. Analysis reveals multiple environmental factors: humidity, temperature variations, electromagnetic interference, and vibration. The project deadline is approaching, and they must decide between: (A) Extensive environmental hardening requiring 8 months, (B) Partial hardening with operational limitations in 4 months, (C) Software-based compensation requiring 3 months but with reduced capability. What problem-solving methodology should guide their decision? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Use failure mode and effects analysis (FMEA) to identify critical failure points, then apply decision tree analysis considering time, cost, performance, and risk factors
B. Choose the fastest solution to meet the deadline
C. Implement the most technically sophisticated solution regardless of timeline
D. Request deadline extension and implement the most comprehensive solution
💡 Engineering problem-solving requires systematic analysis using tools like FMEA to understand failure modes, followed by structured decision analysis that considers multiple constraints including timeline, performance requirements, and risk factors.
76
BARC researchers observe an unusual neutron flux pattern in their experimental reactor that doesn't match theoretical predictions. The pattern appears stable but unexplained. They have limited reactor time and must choose their investigation approach: (1) Shut down and conduct comprehensive theoretical analysis, (2) Continue operation while gathering more data, (3) Run controlled experiments to reproduce the phenomenon, (4) Consult with international experts before proceeding. What analytical framework should guide their decision? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Immediately implement the most conservative approach
B. Apply systematic problem-solving: define the anomaly precisely, assess safety implications, evaluate investigation options based on learning potential and resource requirements
C. Continue current operations since the system appears stable
D. Randomly select from the available options
💡 Scientific problem-solving requires systematic approach: precise problem definition, safety assessment, and structured evaluation of investigation strategies based on learning potential, resource utilization, and safety considerations.
77
An ISRO launch vehicle experiences a minor anomaly during pre-flight checks. The anomaly has never occurred before, and three expert teams provide different assessments of the risk level: Team A rates it as low risk (2% failure probability), Team B as moderate risk (8% failure probability), and Team C as high risk (15% failure probability). The launch window closes in 48 hours, and the next opportunity is in 3 months. How should this uncertainty in expert judgment be handled? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Average the three risk assessments and proceed based on the mean value
B. Use structured expert elicitation techniques to understand the basis for each assessment, identify key uncertainties, and develop decision criteria for acceptable risk levels
C. Follow the most pessimistic assessment to ensure safety
D. Proceed with launch since two teams assess the risk as acceptable
💡 When facing expert disagreement, structured elicitation helps understand the reasoning behind different assessments, identifies key uncertainties, and enables informed decision-making based on explicit risk criteria rather than arbitrary averaging or selection.
78
A DRDO cybersecurity team detects unusual network activity that could indicate either a sophisticated attack or a false positive from their new intrusion detection system. They must balance the risk of ignoring a real threat against the cost of unnecessary countermeasures. The activity shows patterns consistent with advanced persistent threats but also matches known false positive signatures. What decision-making approach is most appropriate? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Immediately activate all countermeasures to ensure maximum security
B. Ignore the alert since it might be a false positive
C. Implement graduated response protocol: conduct rapid threat assessment, deploy interim protective measures, and escalate based on evidence threshold
D. Wait 24 hours to see if the activity continues
💡 Cybersecurity decision-making requires graduated response protocols that balance immediate protection with resource efficiency. This involves rapid assessment, proportionate interim measures, and evidence-based escalation rather than all-or-nothing responses.
79
BARC's waste management team must select a long-term storage solution for intermediate-level radioactive waste. Option A: Deep geological repository with high initial cost (₹500 crores) but 10,000-year containment assurance. Option B: Engineered surface facility costing ₹200 crores with 500-year containment requiring future intervention. Option C: Hybrid approach costing ₹350 crores with 2,000-year containment and flexibility for future technology upgrades. What decision framework should be applied? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Select the lowest cost option to maximize budget efficiency
B. Choose the longest containment period regardless of cost
C. Apply intergenerational decision analysis considering long-term safety, technological uncertainty, economic factors, and ethical responsibilities to future generations
D. Postpone the decision until better technologies are developed
💡 Long-term nuclear waste decisions require intergenerational analysis that considers extended timeframes, technological evolution, economic sustainability, and ethical obligations to future generations, making it more complex than simple cost-benefit analysis.
80
An ISRO mission to deploy a constellation of earth observation satellites faces a cascade of problems: launch delays due to weather, component supply chain disruptions, and changes in user requirements. The mission director must re-plan the entire program while maintaining scientific objectives and budget constraints. Multiple stakeholders have conflicting priorities. What strategic problem-solving approach should be employed? 💡 Problem Solving Ability
UPSC
2026-04-08
A. Address each problem individually as it arises
B. Apply systems thinking methodology: map stakeholder requirements, identify critical path dependencies, analyze constraint interactions, and develop integrated solution scenarios
C. Focus only on the most critical problem first
D. Request additional budget and timeline extensions for all issues
💡 Complex multi-stakeholder problems require systems thinking that maps interdependencies, analyzes constraint interactions, and develops integrated solutions rather than addressing issues in isolation or focusing on single aspects.