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Inventions MCQs – Mock Test 136

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The MCQ: Usable gyro compass was invented by; "Inventions MCQs" App (Android, iOS) with answers: dr raymond lemieux, sir percy spencer, sir peter williamson, and sir hermann anschutz-kaempfe for distance learning. Practice inventions and inventors questions and answers, Apple Book to download free chapter for online schools.

Gyrocompass MCQs – Mock Test 136 PDF Download

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
MCQ: 677

Relief Etching was patented by

  1. Sir Don Marcelino
  2. Sir William Blake
  3. Sir James Arnot
  4. Sir William Blanc Brain
MCQ: 678

The electric iron was invented by an American mathematician born in Cazenovia named as

  1. John Loudon McAdam
  2. Sir Henry W. Seelay
  3. Sir James Hillier
  4. Uno Vilho
MCQ: 679

On which one of the following dates World Wide Web was invented?

  1. 1972
  2. 1989
  3. 1986
  4. 1930
MCQ: 680

Colt Revolver was invented by

  1. Sir Samuel Colt
  2. Sir George Smith
  3. Sir Willard Boyle
  4. Sir Leon Battista Alberti

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