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Inventions Placement Tests: Certification Test 570

Metal Detectors Study App & e-Book: MCQ 570

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MCQ: 570

Metal detectors were invented by an American scientist and engineer named as

  1. Sir Nikolaus Otto
  2. Sir Schuyler Skaats Wheeler
  3. Sir Alexander Graham Bell
  4. Sir Oliver Evans
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Metal Detectors Placement Tests: Inventions App & eBook MCQs

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Metal Detectors MCQs App (iOS & Android)

Metal Detectors MCQs App

General Knowledge MCQs App (Android & iOS)

General Knowledge MCQs App

Basic Anthropology MCQs App (Android & iOS)

Basic Anthropology MCQs App

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Data Structure MCQs App

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8th Class Science Test Questions

8th Class Science Quiz with Answers