FeedBack Form

Your Name :
Your Email :
Your Location :
Your Message :
   
FeedBack

Inventions and Discoveries

General Knowledge
31. Helicopter was invented by
 
  • A. Drinker
  • B. Broquet
  • C. Copernicus
  • D. Cockrell
 
32. Homoeography was invented by
 
  • A. Cockrell
  • B. Lipman
  • C. Hahneman
  • D. none of these
 
 
33. Telegrahic code was introduced by
 
  • A. Lipman
  • B. Macmillan
  • C. Thomas Moore
  • D. Cockrell
 
34. Lift was invented by
 
  • A. Otis
  • B. Domagk
  • C. Lee De Forest
  • D. None of these
 
35. Toricelli invented
 
  • A. Automobile
  • B. Barometer
  • C. Stethoscope
  • D. None of these