Inventions MCQs (Grade 8) From Textbook

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Inventions MCQs – Mock Test 129

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The MCQ: Radio signals were first time sent and received in; "Radio Quiz" App Download [Free] with answers: 1879, 1888, 1847, and 1895 for distance learning. Solve inventions and inventors questions and answers, Google Book to download free chapter for taking online classes.

Radio Quiz – Mock Test 129 PDF Download

MCQ: 641

Radio signals were first time sent and received in

  1. 1888
  2. 1879
  3. 1895
  4. 1847
MCQ: 642

The first inactive tetanus oxide was discovered in

  1. 1976
  2. 1903
  3. 1924
  4. 1942
MCQ: 643

Pointing Stick was invented by IBM computer scientist named as

  1. Sir John Biggins
  2. Sir Alexander Cartwright
  3. Sir Stephen Poplawski
  4. Sir Ted Selker
MCQ: 644

Periodic table was patented by a Russian Chemist named as

  1. Dmitri Mendeleev
  2. Sir Henry W. Seelay
  3. Sir Schuyler Skaats Wheeler
  4. Sir Samuel W. Francis
MCQ: 645

Concrete was discovered by

  1. Sir Willem Kloff
  2. Sir Joseph Monier
  3. Sir George Smith
  4. Sir Willard Boyle

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