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Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Certification Test 486

Fluorescent Lighting MCQs (Question 486) – Study App & e-Book Download

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MCQ 486: Mercury vapor lamp was invented by an American Electrical engineer named as:

  1. Sir James Hillier
  2. Sir Peter Cooper Hewitt
  3. Uno Vilho
  4. Dr Dennis Colonello

Fluorescent Lighting MCQs App & e-Book – Inventions Placement Tests

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Fluorescent Lighting MCQs App (iOS & Android)

Fluorescent Lighting MCQs App

General Knowledge MCQs App (Android & iOS)

General Knowledge MCQs App

HCI MCQs App (Android & iOS)

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Textile Technology MCQs App