Inventions Practice Test 66
Crayons Quiz PDF: Questions and Answers - 66
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The MCQ Quiz: Which one of them invents crayons; "Crayons" App Download (Android & iOS) Free with answers sir willard boyle, sir george smith, sir firs cry and sir o.a north for online certifications. Study inventions and inventors questions and answers, Apple Book to download free sample for online school courses.
Crayons Questions and Answers PDF Download: Quiz 66
MCQ 326: Which one of them invents crayons?
- Sir George Smith
- Sir Willard Boyle
- Sir Firs Cry
- Sir O.A North
MCQ 327: Which one of the following received a patent for the far ultraviolet camera?
- Sir Walter Wingfield
- Sir George Carruthers
- Sir Walter Brattain
- Sir T.J Blachut
MCQ 328: Foot Bag was invented by
- Sir Gideon Sundback
- Sir John Stalberger
- Sir Henry W. Seelay
- Sir Schuyler Skaats Wheeler
MCQ 329: Halftone engraving was patented by
- Sir Nikola Tesla
- Sir Desbarats
- Sir William Augustus Legge
- both b and c
MCQ 330: Which one of the following invented the first self-contained Digital Camera?
- Sir Josip Belusic
- Sir Thomas Edison
- Sir Igory Sikorsky
- Sir Steven Sasson
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