alleryThe steam engine of Newcomen was improved and patented in 1781 by:
AJohn Smeaton
BJosiah Nash
CJoseph Reade
DJames Watt
Answer & Solution
Correct answer: D. James Watt
1. Newcomen had built an earlier engine.
2. James Watt improved it and patented the new engine in 1781.
3. His friend Mathew Boulton manufactured the new model.
_Source: syllabus Social Science, 'India and the Contemporary World II', Ch 4 'The Age of Industrialisation'_
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