Class 8 Courses

Inventions Practice Tests

Inventions Online Tests

Dewar Flask MCQ (Multiple Choice Questions) PDF Download

The Dewar flask Multiple Choice Questions (MCQ Quiz) with Answers PDF (Dewar Flask MCQ PDF e-Book) download to practice Inventions Tests. Learn Inventions and Inventors Multiple Choice Questions and Answers (MCQs), Dewar Flask quiz answers PDF for online elementary school classes. The Dewar Flask MCQ App Download: Free learning app for a.c, fortran, snowblower, music synthesizer test prep for virtual online school.

The MCQ: The first thermos was patented by; "Dewar Flask" App Download (Free) with answers: Sir James Dewar; Sir Etienne Montgolfier; Sir Alfred Nobel; Sir Henri Giffard; for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Google eBook (Free Sample) for school certificate.

Dewar Flask MCQs PDF: Questions Answers Download

MCQ 1:

The first thermos was patented by

  1. Sir James Dewar
  2. Sir Etienne Montgolfier
  3. Sir Alfred Nobel
  4. Sir Henri Giffard

Inventions Practice Tests

Dewar Flask Textbook App: Free Download iOS & Android

The App: Dewar Flask MCQs App to study Dewar Flask Textbook, Inventions MCQ App, and RF Electronics MCQ App. The "Dewar Flask MCQs" App to free download Android & iOS Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Dewar Flask App (Android & iOS)

Dewar Flask App (Android & iOS)

Inventions App (Android & iOS)

Inventions App (iOS & Android)

RF Electronics App (Android & iOS)

RF Electronics App (Android & iOS)

International Relations App (Android & iOS)

International Relations App (iOS & Android)