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Question No. 177Interactive Test Mode
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Q177. With reference to Agni-IV Missile, which of the following statements is/are correct? 1. It is a surface-to-surface missile. 2. It is fuelled by liquid propellant only. 3. It can deliver one-tonne nuclear warheads about 7500 km away. Select the correct answer using the code given below.

With reference to Agni-IV Missile, which of the following statements is/are correct?

  1. It is a surface-to-surface missile.
  2. It is fuelled by liquid propellant only.
  3. It can deliver one-tonne nuclear warheads about 7500 km away. Select the correct answer using the code given below.
Select the correct option below (or cross out options to eliminate)

Official Answer Key & Detailed Solution

Ready to check the official UPSC Answer Key?

Click any option above to test yourself under exam conditions, or reveal the explanation directly.

Official UPSC Answer KeyUPSC Prelims 2014 • Science and Technology

Correct Answer: Option (A) — 1 only

Concept & Option Breakdown

Standard Reference Verified

Statement 1 is correct: Agni-IV is a surface-to-surface intermediate-range ballistic missile (IRBM).

Statement 2 is incorrect: Agni-IV is powered by a two-stage solid propellant system, not liquid propellant.

Statement 3 is incorrect: Agni-IV has a strike range of approximately 4,000 km, capable of carrying a 1-tonne payload. A range of 7,500 km falls in the Intercontinental Ballistic Missile (ICBM) category (like the Agni-VI concept).

Elimination Heuristic & Exam Approach

Statements with extreme qualifiers like 'liquid propellant only' and exaggerated range figures (7500 km for an intermediate-range missile) can be eliminated.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2014 (Q177)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (A) — 1 only

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Frequently Asked Questions — UPSC Prelims 2014 Q177

What is the official answer for UPSC Prelims 2014 GS Paper I Question 177 (Science and Technology)?

The official UPSC answer key for this 2014 Science and Technology (Health & Medicine) question is Option (A): "1 only". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2014 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

Statements with extreme qualifiers like 'liquid propellant only' and exaggerated range figures (7500 km for an intermediaterange missile) can be eliminated.

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