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Social Science — CBSE Class 10 board question

Q1. [1]
Who among the following improved the steam engine ?
  1. (a) James Watt
  2. (b) Thomas Edison
  3. (c) Benjamin Franklin
  4. (d) Alexander Fleming
Previously asked in CBSE board exam
2023 32/4/1 Q4
Generated by claude-sonnet-4-6 · 2026-06-15 07:06 · grounding rag
Model Answer

(a) James Watt

James Watt improved the steam engine produced by Newcomen and patented the new engine in 1781.

Explanation

The source passage explicitly states: "James Watt improved the steam engine produced by Newcomen and patented the new engine in 1781." Thomas Edison, Benjamin Franklin, and Alexander Fleming are associated with other inventions (bulb/electricity, lightning rod, and penicillin respectively). Always recall exact names and context from the chapter.

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Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.