Industrial Era — Set 2
Inventions · औद्योगिक युग · Questions 11–20 of 50
Who patented the first practical Telephone in 1876?
Correct Answer: B. Alexander Graham Bell
• **Alexander Graham Bell** = patented the first practical Telephone in 1876. • **1876** — allowed real-time voice communication over long distances. • 💡 Wrong-option analysis: Elisha Gray: had a competing patent claim for the telephone around the same time as Bell; Antonio Meucci: demonstrated an early voice communication device but did not establish a practical patent; Thomas Edison: developed improvements for the telephone, but Bell is credited with the first practical patent.
The invention of 'Dynamite' is attributed to which Swedish chemist?
Correct Answer: C. Alfred Nobel
• **Alfred Nobel** = is attributed with the invention of 'Dynamite'. • **Nobel Prizes** — established using his fortune from the invention. • 💡 Wrong-option analysis: Jons Jacob Berzelius: a chemist known for chemical notation and atomic weight determination; Anders Celsius: developed the Celsius temperature scale; Svante Arrhenius: a chemist known for his work on acids and bases and the greenhouse effect.
Who developed the 'Mechanical Reaper', which revolutionized harvesting in agriculture?
Correct Answer: C. Cyrus McCormick
• **Cyrus McCormick** = developed the 'Mechanical Reaper', which revolutionized harvesting in agriculture. • **five men** — a single machine could harvest as much grain as five men using scythes. • 💡 Wrong-option analysis: Eli Whitney: invented the cotton gin; Robert Fulton: developed the first commercially successful steamboat; John Deere: developed the steel plow.
The first affordable, mass-produced automobile, the Model T, was created by?
Correct Answer: C. Henry Ford
• **Henry Ford** = created the first affordable, mass-produced automobile, the Model T. • **assembly line** — drastically reduced the cost of car production. • 💡 Wrong-option analysis: Karl Benz: created the first automobile; Enzo Ferrari: founded the luxury sports car company Ferrari; Louis Chevrolet: co-founded the Chevrolet Motor Car Company.
Who is credited with the invention of the 'Water Frame' for spinning thread using water power?
Correct Answer: A. Richard Arkwright
• **Richard Arkwright** = is credited with the invention of the 'Water Frame' for spinning thread using water power. • **Modern Factory System** — he is often called the 'Father of the Modern Factory System'. • 💡 Wrong-option analysis: John Kay: invented the flying shuttle; James Hargreaves: invented the spinning jenny; Samuel Crompton: invented the spinning mule, combining features of the jenny and water frame.
The 'Power Loom', which mechanized the weaving of cloth, was invented by?
Correct Answer: C. Edmund Cartwright
• **Edmund Cartwright** = Invented the 'Power Loom' to mechanize the weaving of cloth. • **1785** — When he developed the first power loom, balancing production speed between spinning and weaving in the textile industry. • 💡 Wrong-option analysis: James Watt: Known for improvements to the steam engine; Richard Arkwright: Known for the water frame, a spinning machine; John Kay: Invented the flying shuttle, which sped up weaving but was not the power loom itself.
The 'Safety Elevator', which prevented cars from falling if cables snapped, was invented by?
Correct Answer: B. Elisha Otis
• **Elisha Otis** = Invented the 'Safety Elevator' system, which prevented cars from falling if cables snapped. • **1854** — When he demonstrated his safety brake, making vertical transport safe for the public and essential for skyscrapers in crowded cities. • 💡 Wrong-option analysis: Thomas Edison: Known for the phonograph, light bulb, and DC electrical system; Nikola Tesla: Known for the AC electrical system and other electrical inventions; Henry Ford: Known for pioneering the assembly line for automobile production.
Who is the inventor of the 'Phonograph', the first device to record and play back sound?
Correct Answer: B. Thomas Edison
• **Thomas Edison** = Invented the 'Phonograph', the first device to record and play back sound. • **rotating cylinder** — Used in his phonograph, covered in tinfoil to capture sound waves, preserving human voices and music for the first time. • 💡 Wrong-option analysis: Guglielmo Marconi: Developed the first practical radio system; Emile Berliner: Invented the gramophone, an improvement on the phonograph using flat discs; Alexander Graham Bell: Credited with inventing the practical telephone.
The first practical and stable form of photography, the 'Daguerreotype', was invented by?
Correct Answer: B. Louis Daguerre
• **Louis Daguerre** = Invented the 'Daguerreotype', the first practical and stable form of photography. • **silver-plated copper sheets** — The medium on which he developed a process to capture images, significantly reducing exposure time for clear photographs. • 💡 Wrong-option analysis: William Fox Talbot: Invented the calotype process, a different photographic method; Joseph Niépce: Produced the world's first successful photograph but it was not the practical 'Daguerreotype'; George Eastman: Founded Kodak and popularized roll film and simple cameras.
The 'Pneumatic Tire', which greatly improved ride quality for bicycles and cars, was patented by?
Correct Answer: D. John Boyd Dunlop
• **John Boyd Dunlop** = Patented the 'Pneumatic Tire', which greatly improved ride quality for bicycles and cars. • **air-filled rubber tire** — Developed to provide a smoother ride for his son's tricycle, it became crucial for the bicycle and automobile industries. • 💡 Wrong-option analysis: B.F. Goodrich: A major American tire and rubber company, not the inventor; Charles Goodyear: Discovered vulcanization of rubber, making it durable for tires but not inventing the pneumatic design; Harvey Firestone: Founder of Firestone Tire and Rubber Company, a prominent tire manufacturer.