General Studies 2023 GS Paper III 15 marks 250 words Compulsory Explain

Q15

The adoption of electric vehicles is rapidly growing worldwide. How do electric vehicles contribute to reducing carbon emissions and what are the key benefits they offer compared to traditional combustion engine vehicles? (Answer in 250 words) 15

हिंदी में प्रश्न पढ़ें

इलेक्ट्रिक वाहनों को अपनाना दुनिया भर में तेजी से बढ़ रहा है। कार्बन उत्सर्जन को कम करने में इलेक्ट्रिक वाहन कैसे योगदान करते हैं और पारंपरिक दहन इंजन वाहनों की तुलना में वे क्या प्रमुख लाभ प्रदान करते हैं? (उत्तर 250 शब्दों में दीजिए)

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Directive word: Explain

This question asks you to explain. The directive word signals the depth of analysis expected, the structure of your answer, and the weight of evidence you must bring.

See our UPSC directive words guide for a full breakdown of how to respond to each command word.

How this answer will be evaluated

Approach

The directive 'explain' requires a clear exposition of mechanisms by which EVs reduce emissions and a systematic comparison with ICE vehicles. Structure: brief introduction on EV growth → body addressing emission reduction pathways (tailpipe elimination, grid decarbonization, lifecycle analysis) → comparative benefits (efficiency, air quality, energy security) → conclusion with nuanced take on challenges.

Key points expected

Zero tailpipe emissions and their direct impact on urban air quality and CO2 reduction
Well-to-wheel efficiency comparison: EVs (~70-90% motor efficiency) vs ICE vehicles (~20-30% thermal efficiency)
Lifecycle carbon footprint analysis including battery production emissions and grid electricity mix (coal vs renewable share in India)
India-specific context: FAME-II scheme, PLI for ACC batteries, and projected 30% EV sales by 2030
Co-benefits: reduced oil import dependency, lower PM2.5/NOx in cities like Delhi, grid stabilization through V2G technology
Critical nuance: emission reduction contingent on renewable energy penetration; coal-heavy grids limit benefits

Evaluation rubric

Dimension	Weight	Max marks	Excellent	Average	Poor
Demand-directive understanding	20%	3	Answer explicitly addresses BOTH components—emission reduction mechanisms AND comparative benefits with ICE vehicles; demonstrates understanding of 'explain' by showing causal relationships, not mere listing	Addresses both parts but superficially; treats emission reduction and benefits as separate lists without establishing connections; misses one component partially	Conflates the two parts or omits one entirely; treats question as descriptive without explanatory depth; misunderstands 'explain' as 'list'
Content depth & accuracy	20%	3	Accurate technical details on energy efficiency, battery lifecycle emissions, grid carbon intensity; distinguishes BEVs from PHEVs/Hybrids; includes lifecycle vs operational emissions distinction	Basic accuracy on zero tailpipe emissions and efficiency gains but vague on numbers; conflates EV types; omits lifecycle perspective or grid dependency nuance	Factually incorrect claims (e.g., EVs are zero-emission unconditionally); confuses kWh with km/litre equivalents; ignores battery production emissions entirely
Structure & flow	20%	3	Logical progression: emission mechanisms → comparative efficiency → co-benefits → India context; smooth transitions; balanced word allocation (~100 words per main component)	Recognizable structure but uneven weightage; abrupt shifts between emission science and policy benefits; conclusion feels appended rather than integrated	Disorganized or bullet-point dump; no clear separation between the two question components; rambles beyond 250 words or severely underdeveloped sections
Examples / case-law / data	20%	3	Specific Indian data: FAME-II outlay (₹10,000 crore), current EV penetration (~5% two-wheelers, rising), NITI Aayog 30% target, state comparisons (Delhi EV policy vs others), or international benchmarks (Norway 80% EV sales)	Generic mention of 'government schemes' without names; vague 'increasing trend' without percentages; only international examples without Indian relevance	No examples or data; irrelevant examples (solar power without EV link); outdated or invented statistics; examples contradict the argument made
Conclusion & analytical edge	20%	3	Balanced conclusion acknowledging limitations (grid carbon intensity, battery disposal, critical mineral dependency); forward-looking on renewable integration; avoids uncritical EV promotion	Summary-style conclusion restating benefits; weak or missing acknowledgment of challenges; generic 'EVs are future' statement without nuance	No conclusion; ends abruptly with last benefit; purely aspirational without analytical closure; contradicts earlier points or introduces new unsubstantiated claims

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