Inventions MCQs (Grade 8) From Textbook

Gyrocompass Quiz App Download | Inventions e-Book PDF

Inventions Cerification Guide: Certification Test 676

Gyrocompass Quiz App & e-Book: MCQ 676

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MCQ: 676

A usable gyro compass was invented by

  1. Sir Percy Spencer
  2. Dr Raymond Lemieux
  3. Sir Hermann Anschutz-Kaempfe
  4. Sir Peter Williamson

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Gyrocompass Cerification Guide: Inventions App & eBook Quiz

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Gyrocompass Quiz App (iOS & Android)

Gyrocompass Quiz App

General Knowledge Quiz App (Android & iOS)

General Knowledge Quiz App

Inventions Quiz App (Android & iOS)

Inventions Quiz App

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Biochemistry Quiz App