Content protected from screenshots
GKFix.in
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
Home
My Profile
General Knowledge
Categories
Concept Builder
Start Quiz
Logout
GKFix MCQ Question
Test your knowledge and learn something new
Home
Inventions
Question #6110
Back to Home
View All Inventions Questions
32 Views
Question
What Elmer A. Sperry invented?
A. Hydroplane
B. Hydraulic turbine
C. Magnetic compass
D. Gyrocompass
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What did Percy Spencer invent while working with radar technology during World War II?
21
Which of the following is a literary invention?
38
Which of the following is NOT considered a scientific-technological invention?
20