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 succeeded in transmitting human speech electrically for the first time. His invention allowed real-time voice communication over long distances. The telephone revolutionized both social interactions and business operations.
The invention of 'Dynamite' is attributed to which Swedish chemist?
Correct Answer: C. Alfred Nobel
Alfred Nobel sought a safer way to handle nitroglycerin for use in mining and construction. Dynamite provided a stable explosive that could be easily transported and controlled. Nobel used his fortune to establish the world-famous Nobel Prizes.
Who developed the 'Mechanical Reaper', which revolutionized harvesting in agriculture?
Correct Answer: C. Cyrus McCormick
Cyrus McCormick's reaper allowed a single machine to harvest as much grain as five men using scythes. This increased food production efficiency and allowed more people to work in industrial factories. It is one of the most important inventions in agricultural history.
The first affordable, mass-produced automobile, the Model T, was created by?
Correct Answer: C. Henry Ford
Henry Ford implemented the moving assembly line to drastically reduce the cost of car production. This made automobiles accessible to middle-class citizens for the first time. The assembly line method became a standard for modern manufacturing industries.
Who is credited with the invention of the 'Water Frame' for spinning thread using water power?
Correct Answer: A. Richard Arkwright
Richard Arkwright's water frame produced a stronger thread than the spinning jenny. Because it required water power, it led to the creation of the first true industrial factories. Arkwright is often called the 'Father of the Modern Factory System'.
The 'Power Loom', which mechanized the weaving of cloth, was invented by?
Correct Answer: C. Edmund Cartwright
Edmund Cartwright developed the first power loom in 1785 to automate the weaving process. This balanced the production speed between spinning and weaving in the textile industry. It eventually replaced traditional hand-weaving across the globe.
The 'Safety Elevator', which prevented cars from falling if cables snapped, was invented by?
Correct Answer: B. Elisha Otis
Elisha Otis demonstrated his safety brake in 1854, making vertical transport safe for the public. This invention was essential for the practical use of skyscrapers in crowded cities. Modern urban architecture depends heavily on the safety systems he pioneered.
Who is the inventor of the 'Phonograph', the first device to record and play back sound?
Correct Answer: B. Thomas Edison
Thomas Edison's phonograph used a rotating cylinder covered in tinfoil to capture sound waves. This was the first time in history that human voices and music could be preserved. It laid the foundation for the entire modern music and recording industry.
The first practical and stable form of photography, the 'Daguerreotype', was invented by?
Correct Answer: B. Louis Daguerre
Louis Daguerre developed a process to capture images on silver-plated copper sheets. This significantly reduced the exposure time required to take a clear photograph. It made portrait photography popular among the general public for the first time.
The 'Pneumatic Tire', which greatly improved ride quality for bicycles and cars, was patented by?
Correct Answer: D. John Boyd Dunlop
John Boyd Dunlop developed the air-filled rubber tire to provide a smoother ride for his son's tricycle. This invention was crucial for the development of both the bicycle and the automobile industries. It replaced the uncomfortable solid rubber or wooden wheels of the past.