Inventions Quiz 34 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. What did cardiologist Dr. Paul Zoll invent in Massachusetts in 1952?

Correct Answer: D) Pacemaker.

2. What ice age enemy became mans best friend?

Correct Answer: B) The Wolf (dogs).

3. Gun powder was invented in 9th century in

Correct Answer: B) Tang Dynasty China.

4. What is Henry Ford famous for?

Correct Answer: D) The Assembly Line.

5. Engineering design is ..... you often go back and forth between steps.

Correct Answer: A) Iterative-or repetitive.

6. Rocket Engine was invented by

Correct Answer: A) Robert H. Goddard.

7. Radio valve was invented by

Correct Answer: B) Dr. Wallace H. Carothers.

8. It is used in currency and measurement(discovered by Indians).

Correct Answer: B) Decimal system.

9. Why did the "cottage industry" come to an end?

Correct Answer: B) It was replaced by the factory system.

10. An early production method was called cottage industry because workers .....

Correct Answer: B) Worked in their homes.

11. Earliest version of Cathode Ray Tube which used cold cathode diode was invented by German Physicist is

Correct Answer: A) Fredinand Braun.

12. Which was invented first?

Correct Answer: B) Parachute.

13. Elevator

Correct Answer: A) Elisha G. Otis.

14. Alexander Graham Bell is .....

Correct Answer: B) An inventor.

15. When was the game Frisbee invented?

Correct Answer: C) 1870s.

16. Modern mobile phones such as iPhone are .....

Correct Answer: C) User-friendly.

17. Who discovered gravity?

Correct Answer: D) Sir Isaac Newton.

18. What George Pullman invented?

Correct Answer: A) Sleeping (railway) car.

19. Stethoscope was invented by

Correct Answer: D) Rane Laennec.

20. The laws of floating bodies was discovered by

Correct Answer: A) Archimedes.