Class 8 Online Courses

Inventions Practice Tests

Inventions Online Tests

Electron Tubes Multiple Choice Questions (MCQ) PDF Download

Free Electron tubes Multiple Choice Questions (MCQ Quiz) with Answers PDF Download (Electron Tubes MCQ PDF Book) to learn online certificate courses. Solve Inventions and Inventors Multiple Choice Questions and Answers (MCQs), Electron Tubes quiz answers PDF for online teaching certification programs. Free learning App: Electron Tubes MCQ App Download & e-Book for modern neuroscience, foot bag, post-it-note, a.c test prep for school certificate.

The MCQ: Electron tubes were invented by; "Electron Tubes" App Download (Free) with answers sir henry w. seelay, sir schuyler skaats wheeler, sir samuel w. francis and sir john ambrose for online teaching certification programs. Solve inventions and inventors quiz questions, download Google eBook (Free Sample) for online classes.

Electron Tubes MCQs: Questions and Answers PDF Download

MCQ 1: Electron tubes were invented by

A) Sir Henry W. Seelay
B) Sir Schuyler Skaats Wheeler
C) Sir Samuel W. Francis
D) Sir John Ambrose

MCQ 2: The first vacuum tube was invented by an English electrical engineer in

A) 1911
B) 1904
C) 1978
D) 1933

Inventions Practice Tests

Electron Tubes Learning App & Free Study Apps

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

Electron Tubes App (Android & iOS)

Electron Tubes App (Android & iOS)

Inventions App (Android & iOS)

Inventions App (Android & iOS)

Thermodynamics App (Android & iOS)

Thermodynamics App (Android & iOS)

Biochemistry App (Android & iOS)

Biochemistry App (Android & iOS)