Everyday Inventions — Set 1
Inventions · रोजमर्रा के आविष्कार · Questions 1–10 of 70
Who is credited with the invention of the world's first practical telephone in 1876?
Correct Answer: B. Alexander Graham Bell
Alexander Graham Bell was awarded the first U.S. patent for the telephone. This device revolutionized global communication by transmitting sound over wires. The first intelligible speech was 'Mr. Watson, come here, I want to see you'.
Which inventor developed the first commercially viable incandescent light bulb?
Correct Answer: C. Thomas Edison
Thomas Edison created a long-lasting light bulb using a carbonized bamboo filament. He also established the first power utility system to bring light into homes. Edison holds more than 1,000 patents for various inventions.
The invention of the World Wide Web (WWW) is attributed to which computer scientist?
Correct Answer: B. Tim Berners-Lee
Tim Berners-Lee invented the World Wide Web in 1989 while working at CERN. He created the first web browser and the first web server. This invention allowed information to be shared globally through hyperlinks.
Who invented the first mechanical computer, often called the 'Difference Engine'?
Correct Answer: B. Charles Babbage
Charles Babbage is considered the 'father of computers' for his design of mechanical calculating machines. His Analytical Engine featured concepts like an arithmetic logic unit and integrated memory. Though never fully built in his lifetime, his designs laid the foundation for modern computing.
The fountain pen, which used a reservoir of ink, was first successfully patented by?
Correct Answer: C. Lewis Waterman
Lewis Waterman patented the first reliable fountain pen in 1884. He improved the design by adding a capillary feed to prevent ink blotting. Before this, writers had to dip pens into inkwells frequently.
Which scientist is famously known for the invention of Dynamite in 1867?
Correct Answer: C. Alfred Nobel
Alfred Nobel invented dynamite as a safer alternative to liquid nitroglycerin for mining. He used his immense wealth generated from this invention to establish the Nobel Prizes. This discovery made large-scale construction projects like tunnels much easier.
The first practical barometer for measuring atmospheric pressure was invented by?
Correct Answer: C. Evangelista Torricelli
Evangelista Torricelli used a tube of mercury to demonstrate that air has weight and exerts pressure. This invention was fundamental to the development of meteorology and weather forecasting. The unit 'Torr' is named in his honor.
Who is credited with the invention of the mercury thermometer in 1714?
Correct Answer: A. Daniel Gabriel Fahrenheit
Daniel Fahrenheit invented both the alcohol thermometer and the more accurate mercury thermometer. He also developed the Fahrenheit temperature scale used primarily in the United States today. Mercury was chosen because it expands linearly with temperature changes.
The invention of the safety elevator, which prevented the car from falling if the cable broke, was by?
Correct Answer: D. Elisha Otis
Elisha Otis demonstrated his safety brake in 1854, which paved the way for skyscrapers. Before this invention, elevators were considered too dangerous for passenger travel. Modern high-rise cities would not be possible without this critical safety mechanism.
Who invented the first practical sewing machine that was successfully marketed to households?
Correct Answer: B. Isaac Singer
Isaac Singer improved upon earlier designs to create a machine with a foot treadle and a straight needle. His company introduced the installment payment plan to make the machine affordable for families. This invention transformed the garment industry and domestic life.