James Watt patented his improved steam engine in:
- 1781
- 1764
- 1854
- 1812
Show answer and solution
Correct answer: A. 1781
1. He improved the engine made by Newcomen.
2. The patent came in 1781.
3. Mathew Boulton manufactured the new model.
_Source: syllabus India and the Contemporary World II, Chapter 4, The Age of Industrialisation._