Q.1)-Who invented the BALLPOINT PEN?
- Biro Brothers
- Waterman Brothers
- Bicc Brothers
- Write Brothers
Q.2)-What J. B. Dunlop invented?
- Pneumatic rubber tire
- Automobile wheel rim
- Rubber boot
- Model airplanes
Q.3)-Which scientist discovered the radioactive element radium?
- Isaac Newton
- Albert Einstein
- Benjamin Franklin
- Marie Curie
Q.4)-When was barb wire patented?
- 1874
- 1840
- 1895
- 1900
Q.5)-What Galileo invented?
- Barometer
- Pendulum clock
- Microscope
- Thermometer
Q.6)-What James Watt invented?
- Diving bell
- Steam boat
- Hot air balloon
- Rotary steam engine
Q.7)-Who invented Jet Engine?
- Sir Frank Whittle
- Gottlieb Daimler
- Roger Bacon
- Lewis E. Waterman
Q.8)-What invention caused many deaths while testing it?
- Dynamite
- Ladders
- Race cars
- Parachute
Q.9)-Who invented Gunpowder?
- G. Ferdinand Von Zeppelin
- Sir Frank Whittle
- Roger Bacon
- Leo H Baekeland
Q.10)-In which decade was the telephone invented?
- 1850s
- 1860s
- 1870s
- 1880s