Class 8 Online Courses

Inventions Practice Tests

Inventions Online Tests

Polygraph Multiple Choice Questions (MCQ) PDF Download

Free Polygraph Multiple Choice Questions (MCQ Quiz) with Answers (Polygraph MCQ PDF Book) download to learn online courses. Practice Inventions and Inventors Multiple Choice Questions and Answers (MCQs), Polygraph quiz answers PDF for online certifications. The Polygraph MCQ App Download: Free learning app for modern neuroscience, foot bag, post-it-note, a.c test prep for distance education.

The MCQ: In which one of the following year, Polygraph was patented; "Polygraph" App Download (Free) with answers 1965, 1972, 1918 and 1921 for online certifications. Solve inventions and inventors quiz questions, download Google eBook (Free Sample) for online elementary school classes.

Polygraph MCQs: Questions and Answers PDF Download

MCQ 1: In which one of the following year, Polygraph was patented?

  1. 1965
  2. 1972
  3. 1918
  4. 1921

MCQ 2: Polygraph was discovered by

  1. Sir Frances Gabe
  2. Sir George Beers
  3. Sir John Larson
  4. Sir Louis Pasteur

Inventions Practice Tests

Polygraph Learning App & Free Study Apps

Download Polygraph MCQs App to learn Polygraph MCQs, Inventions Learning App, and C++ MCQ Apps. Free "Polygraph" App to download Android & iOS Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Polygraph App (Android & iOS)

Polygraph App (Android & iOS)

Inventions App (Android & iOS)

Inventions App (iOS & Android)

C++ App (Android & iOS)

C++ App (Android & iOS)

Basic Business Research App (Android & iOS)

Basic Business Research App (iOS & Android)