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4 Written questions

3 Multiple choice questions

  1. If a cable broke and the cage began to fall, a spring caused two steel ________ to shoot out of the side of the cage.
  2. Otis's invention could be used to ________ people safely to the upper floors of very tall buildings.
  3. Elisha Otis invented a ________ that kept the cages from crashing to the ground.

3 True/False questions

  1. landmarkHis invention kept accidents from happening if a rope or wire ________ broke.

          

  2. cathedralsHis invention kept accidents from happening if a rope or wire ________ broke.

          

  3. methodThe stone was not cheap and this ________ of building used a large amount of cut stone.