Free Metal Detectors Study App | Inventions MCQs e-Book PDF
Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Certification Test 570

Metal Detectors MCQs (Question 570) – Study App & e-Book Download

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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

Metal Detectors MCQs App & e-Book – Inventions Placement Tests

Free Metal Detectors Study App – Download for Android & iOS

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Metal Detectors MCQs App Download: iOS & Android Apps

Metal Detectors MCQs App

General Knowledge MCQs App Download: Android & iOS Apps

General Knowledge MCQs App

Basic Sociology MCQs App Download: Android & iOS Apps

Basic Sociology MCQs App

Software Engineering MCQs App Download: Android & iOS Apps

Software Engineering MCQs App