General Knowledge · Inventions and Discoveries
In which year did Francis Pettit Smith patent the first effective screw propeller?
- 11845
- 21850
- 31836✓
- 41827
Correct answer
1836
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for General Knowledge?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Inventions and Discoveries?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in General Knowledge · Inventions and Discoveries