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GS Paper IUPSC Prelims 2000
Health & Medicine
Question No. 264Interactive Test Mode
00:00
+2-0.66

Q264. A noise level of 100 decibel would correspond to:

A noise level of 100 decibel would correspond to:

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 2000 • Science and Technology

Correct Answer: Option (D) — Noise from a machine shop

Concept & Option Breakdown

Standard Reference Verified
  • 0 dB: Threshold of hearing (just audible)
  • 30–40 dB: Quiet whisper / quiet library
  • 60 dB: Normal conversation
  • 70–80 dB: Heavy traffic / noisy street
  • 100–110 dB: Machine shop / printing press / chainsaws
  • 120–140 dB: Jet engine takeoff / threshold of pain
Elimination Heuristic & Exam Approach

100 dB represents intense industrial noise, such as a factory or machine shop.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2000 (Q264)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (D) — Noise from a machine shop

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Frequently Asked Questions — UPSC Prelims 2000 Q264

What is the official answer for UPSC Prelims 2000 GS Paper I Question 264 (Science and Technology)?

The official UPSC answer key for this 2000 Science and Technology (Health & Medicine) question is Option (D): "Noise from a machine shop". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2000 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?

100 dB represents intense industrial noise, such as a factory or machine shop.

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