← All questionsGS1 · 2018 · Geography ·IRNSS & Navigation
QUESTION 4
GS1
10 marks

Why is Indian Regional Navigational Satellite System (IRNSS) needed? How does it help in navigation?

WRITE IN
7 min
150 words

What the examiner wants

Explain: answer the exact PYQ as framed — “Why is Indian Regional Navigational Satellite System (IRNSS) needed? How does it help in navigation?” Treat each scoring limb separately instead of writing a general note on IRNSS & Navigation.

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

Demand-wise check

  1. 1Why is Indian Regional Navigational Satellite System (IRNSS) needed?≈55 words
  2. 2How does it help in navigation?≈55 words

Open in about 20 words and close in about 20.

Answer plan

Define/processCausal mechanismSpatial pattern and examplesImpacts/implicationsAnswer-specific conclusion

Where marks usually go

  • Writing generally about IRNSS & Navigation without directly resolving: “Why is Indian Regional Navigational Satellite System (IRNSS) needed?”
  • Under-developing the second scoring limb: “How does it help in navigation?”

Value addition

  • Small labelled map/flow diagram showing the spatial relationship central to the question
    → 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.