Inventions kaun banega crorepati online

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Inventions kaun banega crorepati online

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When were bar code scanners invented?
A
1940s
B
1950s
C
1970s
D
1960s
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What Igor Sikorsky invented?
A
Hydroplane
B
Jet engine airplane
C
Helicopter
D
Glider
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Who was the first American female to patent her invention, a method of weaving straw with silk?
A
Marjorie Joyner
B
Margaret Knight
C
Amanda Jones
D
Mary Kies
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Who had an explosive idea and first patented DYNAMITE?
A
J. R. Gluber
B
A. Nobel
C
G. Fawks
D
W. Bickford
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What plaything was invented by Joe McVicker in 1956?
A
Silly Putty
B
Etch-A-Sketch
C
Lite-Brite
D
Play-Doh
There are 5 questions to complete.

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