Multiple choice

Directions: Find out from the following the inventions of different discoveries

Improved power Elevator

  1. 1955

  2. 1852

  3. 1931

  4. 1768
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Elisha Otis invented the safety elevator mechanism in 1852, which prevented the car from falling if the hoisting rope broke.

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