Elevator safety pioneer: What did Elisha Otis invent that made passenger elevators practical? Context: Mid-19th-century safety demonstration preventing car fall if the hoisting rope failed. Choose the correct invention.
General Knowledge
Inventions
Difficulty: Easy
Choose an option
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AThe elevator safety brake (safety elevator)
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BThe electric traction motor
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CThe hydraulic piston elevator
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DThe escalator
Answer
Correct Answer: The elevator safety brake (safety elevator)
Explanation
Concept / ApproachElisha Otis invented a safety brake that prevents an elevator car from falling if its hoisting rope breaks, demonstrated famously in 1854. This made passenger elevators acceptable and safe.
Final AnswerThe elevator safety brake (safety elevator).