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GS Paper IUPSC Prelims 1998
Health & Medicine
Question No. 279Interactive Test Mode
00:00
+2-0.66

Q279. A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct?

A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct?

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 1998 • Science and Technology

Correct Answer: Option (C) — It must have a low melting point

Concept & Option Breakdown

Standard Reference Verified

An electric fuse is a safety component connected in series with the live line. It is made of an alloy (such as tin-lead) with a low melting point and appropriate resistance so that it melts and breaks the circuit whenever current exceeds safe limits.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1998 (Q279)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (C) — It must have a low melting point

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Frequently Asked Questions — UPSC Prelims 1998 Q279

What is the official answer for UPSC Prelims 1998 GS Paper I Question 279 (Science and Technology)?

The official UPSC answer key for this 1998 Science and Technology (Health & Medicine) question is Option (C): "It must have a low melting point". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1998 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?

To solve Health & Medicine questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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Next QuestionAssertion (A): The temperature of a metal wire rises when an electric current is passed through it. Reason (R): Collision of metal atoms with each other releases heat energy.