Multiple choice general knowledge

Alexander Graham Bell is best known for inventing the telephone, but he was a man of many interests. Another product for which he received patents was:

  1. A cement-burning kiln

  2. A hydrofoil boat

  3. A “magic lantern” projector

  4. A vacuum cleaner
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alexander Graham Bell is best known for inventing the telephone, but he was a prolific inventor with diverse interests. Among his other patents was the hydrofoil boat, which he developed to achieve faster water speeds. The cement kiln, magic lantern projector, and vacuum cleaner were inventions of others, not Bell.

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