Who invented the safety pin?

Related Mcqs:

1. Which Gas is included in Fry Chips Packets for safety?

   A. Nitrogen gas B. Carbon dioxide C. Oxygen D. Hydrogen Submitted by: Amir yamin...

2. Battery was invented by__________?

   A. Nicolas Léonard Sadi Carnot B. Alessandro Volta C. Michael Faraday D. Friedrich Bessel Submitted by: Danish Balani...

3. Who invented the first battery?

   A. Alessandro volta  B. Tim Berner C. Rob Stothard D. Georges Leclanche Submitted by: Ashfaque Ali Khoso...

4. Who invented “Aspirin” in 1897?

   A. Barnard B. Newton C. Felix Hoffmann D. McLeod Submitted by: Asad Ullah Afridi...

5. What inspired reflecting road lights to be invented?

   A. Car door reflecting mirrors B. The light a cat’s eyes gave off on a fence C. Sun light on steel posts on road sides D. The sun light on the windshield Submitted by: Rashid Mehmood...

6. What “Enrico Fermi” invented?

   A. X ray machine B. Betatron C. Cyclotron D. Nuclear reactor Submitted by: Rashid Mehmood...

7. Mass spectrograph was Invented by?

   A. Rutherford B. Chadwik C. F.W.Aston D. None of these Submitted by: Muhammad Mumtaz Haider...

8. Who invented bifocal eyeglasses?

   A. Ibn-e-Haitem B. Benjamin Franklin C. Archemedes D. None Submitted by: Asifa Tariq...

9. Who invented steamboat?

   A. James Watt B. Robert Fluton C. Frank Whittle D. George Stephenson Submitted by: Munwar Ali Sohu...

10. Electric motor was invented by __________ ?

    A. Michael Faraday B. Oliver Evans C. Thomas Edison D. Horace Day Submitted by: Rashid Mehmood...