Electronic Instrument MCQs Quiz Online PDF Download

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MCQs on Electronic InstrumentQuiz PDF Download

MCQ: Electronic instrument which is used to measure alkalinity or acidity of a liquid was invented by

  1. Arnold Orville Beckman
  2. Dr. Robbert Hutchings Goddard
  3. William George Morgan
  4. George Whatley

A

MCQ: Electronic instrument of a liquid was invented in

  1. 1928
  2. 1922
  3. 1925
  4. 1929

B