← All questionsGS3 · 2021 · Science & Technology ·S-400 (defence tech)
QUESTION 5
GS3
10 marks

How is S-400 air defence system technically superior to any other system presently available in the world?

WRITE IN
7 min
150 words

What the examiner wants

Explain: answer the exact PYQ as framed — “How is S-400 air defence system technically superior to any other system presently available in the world?” Treat each scoring limb separately instead of writing a general note on S-400 (defence tech).

ExplainMake clear how and why it happens: causes, process, and an example for each point.

Demand-wise check

  1. 1How is S-400 air defence system technically superior to any other system presently available in the world?≈55 words
  2. 2Support the Explain with directly relevant evidence/examples and end with a reasoned conclusion≈55 words

Open in about 20 words and close in about 20.

Answer plan

Define/contextExplain the mechanism or trendAnswer each explicit limb with India-specific evidenceConstraints/trade-offsBalanced way forward

Where marks usually go

  • Writing generally about S-400 (defence tech) without directly resolving: “How is S-400 air defence system technically superior to any other system presently available in the world?”
  • Using facts/examples as decoration without linking them to the Explain judgement required by the question

Value addition

  • 3–4 node flowchart or dimension wheel keyed to the question’s main components
    → Draw it in the body, next to the point it supports.

Official source anchors

These are authoritative sources selected for this exact PYQ. Where a card is an official-domain anchor rather than a fact-level citation, verify the precise provision, definition or data point on the linked source before using it.