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GS Paper IUPSC Prelims 1997
Health & Medicine
Question No. 362Interactive Test Mode
00:00
+2-0.66

Q362. Which one of the following is used as an anti-freeze for automobile engines?

Which one of the following is used as an anti-freeze for automobile engines?

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 1997 • Science and Technology

Correct Answer: Option (D) — Ethylene glycol

Concept & Option Breakdown

Standard Reference Verified

Ethylene glycol mixed with water serves as the standard engine coolant and anti-freeze. It depresses the freezing point of the mixture while simultaneously elevating its boiling point, preventing radiator freezing in winter and boil-over in summer.

Elimination Heuristic & Exam Approach

Ethylene glycol is the standard chemical used in automotive antifreeze solutions.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1997 (Q362)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (D) — Ethylene glycol

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Frequently Asked Questions — UPSC Prelims 1997 Q362

What is the official answer for UPSC Prelims 1997 GS Paper I Question 362 (Science and Technology)?

The official UPSC answer key for this 1997 Science and Technology (Health & Medicine) question is Option (D): "Ethylene glycol". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1997 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?

Ethylene glycol is the standard chemical used in automotive antifreeze solutions.

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