GK Questions on World Invention for Competitive Exam
List of Inventions: 2018
Q.31 Who invented Electron?
(A) Thomson. J of Britain in 1897
(B) Ralph H. Baer
(C) Percy Spencer
(D) Evangelista Torricelli
Ans . A
Q.32 Who invented Floppy disk?
(A) IBM in 1970
(B) Euclid
(C) Marie Curie
(D) J.L. Baird
Ans . A
Q.33 Who invented Neutron?
(A) JAMES CHADWICK in 1932
(B) Steven Sasson
(C) Martin Cooper
(D) Dave Hyatt
Ans . A
Q.34 Who invented Refrigerator?
(A) Oliver Evans in 1805
(B) Federico Faggin
(C) Zacharias Janssen
(D) Percy Spencer
Ans . A
Q.35 Who invented Safety Pin?
(A) Walter Hunt of U.S.A. in 1849
(B) Federico Faggin
(C) Zacharias Janssen
(D) Percy Spencer
Ans . A
Q.36 Who invented Safety razor?
(A) King Camp Gillette of U.S.A. in 1903
(B) Federico Faggin
(C) Zacharias Janssen
(D) Percy Spencer
Ans . A
Q.37 Who invented Stainless Steel?
(A) Harry Brearley of Britain in 1913.
(B) Steven Sasson
(C) Martin Cooper
(D) Dave Hyatt
Ans . A
Q.38 Who invented Steam Engine?
(A) Thomas Savery of Britain in 1698
(B) Ralph H. Baer
(C) Percy Spencer
(D) Evangelista Torricelli
Ans . A
Q.39 Who invented Steam Engine (Piston)
(A) Thomas Newcomen of Britain in 1712
(B) Euclid
(C) Marie Curie
(D) J.L. Baird
Ans . A
Q.40 Who invented Steam Engine (Condenser)
(A) James Watt of Britain in 1765
(B) Ralph H. Baer
(C) Percy Spencer
(D) Evangelista Torricelli
Ans . A
If you have any problem or doubt regarding GK Questions on World Invention for Competitive Exams, you can ask me in the comment section. To more practice for GK Questions on World Invention, Visit next page.
Showing page 4 of 5
enhttps://www.hindi.examsbook.com/gk-questions-on-world-invention-for-competitive-exam/454gk-questions-on-world-invention-for-competitive-examAbout author
Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
Read more articles