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Olympiad (Class 5) Invention — practice questions — page 2

Explore 53 free Invention questions in Olympiad (Class 5) General Knowledge. Open each question or exercise to read its content, reference answers and available explanation.

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Invention questions and exercises with answers

Showing questions 31–53 of 53.

Which is a disadvantage of launching a telescope into space instead of building it on the ground?Read the answer and worked solution →An optical telescope makes distant objects look bigger. What else does it make them look?Read the answer and worked solution →Around which year did Johannes Gutenberg invent the movable-type printing press?Read the answer and worked solution →Which earlier trade gave Gutenberg the knowledge of metals he needed to make durable type?Read the answer and worked solution →Gutenberg made hard-wearing type from an alloy of lead, tin and which other metal?Read the answer and worked solution →Gutenberg used a new ink that lasted better than the earlier water-based ink. What kind was it?Read the answer and worked solution →Before printing presses, books were copied by hand. Why did this cause a shortage of books?Read the answer and worked solution →Printed books began using everyday languages instead of which language?Read the answer and worked solution →In 1814 The Times adopted new Koenig presses. Which new source of power did they add?Read the answer and worked solution →What was the main gain from Richard Hoe's rotary printing press of 1843?Read the answer and worked solution →In an old printing shop, what did the compositor arrange into lines of text?Read the answer and worked solution →A hand press used a long handle to turn a threaded rod. Which two machines worked together?Read the answer and worked solution →In the twentieth century, which method largely replaced letterpress in commercial printing?Read the answer and worked solution →A patent gives an inventor which right?Read the answer and worked solution →A patent is granted in India only. Where does it protect the inventor?Read the answer and worked solution →The word inventor comes from the Latin verb invenire. What does it mean?Read the answer and worked solution →Crude stone tools called Oldowan tools are among the earliest inventions. Roughly how old are they?Read the answer and worked solution →Railroads, aviation, vaccination and the smartphone belong to which kind of invention?Read the answer and worked solution →Which of these is among the earliest human inventions, dating back to early humans?Read the answer and worked solution →Match each epochal scientific invention with its primary inventor:Read the answer and worked solution →Match each medical discovery with the pioneer who discovered it:Read the answer and worked solution →Match each technological innovation with its creator:Read the answer and worked solution →Match each scientific measuring instrument with its inventor:Read the answer and worked solution →

Worked practice questions

Which is a disadvantage of launching a telescope into space instead of building it on the ground?

  1. It costs much more to build
  2. Clouds block its view
  3. City lights spoil its view
  4. Bad weather stops it
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Correct answer: A. It costs much more to build

Space telescopes are costly and hard to maintain or upgrade, while the sky problems listed are the ones space avoids.

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An optical telescope makes distant objects look bigger. What else does it make them look?

  1. Brighter
  2. Hotter
  3. Louder
  4. Heavier
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Correct answer: A. Brighter

Optical telescopes increase both the apparent size and the apparent brightness of far away objects.

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Around which year did Johannes Gutenberg invent the movable-type printing press?

  1. 1240
  2. 1440
  3. 1640
  4. 1840
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Correct answer: B. 1440

Gutenberg developed his printing press around 1440 in Europe.

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