ExamVeda
Login
Home

Practice MCQ Questions and answers on Inventions-GK

Learn and practice General Knowledge questions and answers on Inventions with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-2 section-1

11
Who invented Gunpowder?
Discuss
Answer & Solution
Answer: Option C
Solution:
Roger Bacon invented gunpowder.
12
Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear?
Discuss
Answer & Solution
Answer: Option D
Solution:
No one knows for sure when the first chocolate bar appeared or even who made it, but an important event occurred in 1828. The Van Houten press was invented, which extracted cocoa butter from the bean - the same press that brought the Cadbury Brothers success with Cocoa Essence.
13
What now ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?
Discuss
Answer & Solution
Answer: Option B
Solution:
The first wireless remote control for television was called Flashmatic.
14
What Benjamin Franklin invented?
Discuss
Answer & Solution
Answer: Option A
Solution:
Benjamin Franklin invented bifocal spectacles in 1760.
15
This part-time race car driver invented the bucket seat in 1969. Who was he??
Discuss
Answer & Solution
Answer: Option A
Solution:
McQueen invented the bucket seat in 1969.
16
What plaything was invented by Joe McVicker in 1956?
Discuss
Answer & Solution
Answer: Option D
Solution:
Play-Doh was invented by Joe McVicker in 1956.
17
Who was the first American female to patent her invention, a method of weaving straw with silk?
Discuss
Answer & Solution
Answer: Option D
Solution:
Mary was not the first American woman inventor to be sure, there were many female inventors before her, but they never bothered to get a patent.
18
Who invented Gramophone?
Discuss
Answer & Solution
Answer: Option D
Solution:
Gramophone was invented by Thomas Edison, Emile Berliner and Eldridge R. Johnson. Gramophone is also known as phonograph.
19
What furniture item was invented by California furniture designer Charles Prior Hall in 1968?
Discuss
Answer & Solution
Answer: Option C
Solution:
Waterbed was invented by California furniture designer Charles Prior Hall in 1968.
20
The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project?
Discuss
Answer & Solution
Answer: Option A
Solution:
Leslie R. Groves, however, was the military head of the project and the overall supremo, while Robert Oppenheimer was the scientific director. The world's first atomic bomb was exploded in the New Mexico desert on July 16, 1945.