Industrial Era — Set 3
Inventions · औद्योगिक युग · Questions 21–30 of 50
Who invented the 'Flying Shuttle', which allowed a single weaver to weave much wider fabrics?
Correct Answer: D. John Kay
John Kay's flying shuttle, invented in 1733, doubled the output of a weaver. It enabled the production of wide cloths that previously required two weavers sitting side-by-side. This invention created a higher demand for yarn, leading to further innovations in spinning.
The 'Vulcanization' of rubber, which made it durable and weather-resistant, was discovered by?
Correct Answer: C. Charles Goodyear
Charles Goodyear accidentally discovered that heating rubber with sulfur made it elastic and tough. This process prevented rubber from becoming brittle in winter or sticky in summer. It made rubber a vital material for industrial belts, hoses, and tires.
Who developed the first practical system of 'Radio' or wireless telegraphy?
Correct Answer: A. Guglielmo Marconi
Guglielmo Marconi sent the first long-distance wireless signal across the Atlantic in 1901. His invention allowed ships at sea to communicate with land for the first time in history. It revolutionized global news transmission and maritime safety.
The 'Typewriter', which standardized written business communication, was primarily perfected by?
Correct Answer: B. Christopher Latham Sholes
Christopher Latham Sholes developed the first commercially successful typewriter and the QWERTY keyboard layout. This layout was designed to prevent the mechanical keys from jamming during fast typing. It remained the standard for computer keyboards a century later.
The 'Diesel Engine', known for its efficiency and power in heavy machinery, was invented by?
Correct Answer: D. Rudolf Diesel
Rudolf Diesel designed an engine that utilized high compression to ignite fuel without a spark plug. His engine was much more efficient than existing steam and gasoline engines of the late 19th century. Today, it powers most of the world's shipping and heavy-duty trucks.
Who is credited with the invention of the 'Safety Lamp' for miners to prevent explosions?
Correct Answer: A. Michael Faraday
The correct answer is 'Michael Faraday'. Humphry Davy and George Stephenson independently developed safety lamps that enclosed a flame in wire gauze. This prevented the flame from igniting flammable gases like methane found in coal mines. The invention saved thousands of miners' lives during the industrial era.
The first modern 'Air Conditioning' system was designed by?
Correct Answer: B. Willis Carrier
Willis Carrier developed a system in 1902 to control humidity and temperature for a printing plant. His invention allowed industries like film and textiles to operate regardless of outside weather conditions. It eventually became a standard for human comfort in buildings worldwide.
Who invented the 'Pasteurization' process to kill bacteria in liquids like milk?
Correct Answer: B. Louis Pasteur
Louis Pasteur discovered that heating liquids to a specific temperature could kill harmful microbes without boiling them. This process significantly reduced the spread of diseases like tuberculosis and typhoid. It is a fundamental practice in the modern food and dairy industry.
The 'Refrigeration' machine using compression, which allowed for global food trade, was pioneered by?
Correct Answer: A. James Harrison
James Harrison developed the first mechanical ice-making machine and vapor-compression refrigerator. His work allowed for the long-distance transport of perishable goods like meat and dairy. This transformed global agriculture and dietary habits across continents.
Who is known for developing the 'Alternating Current' (AC) electrical system used globally today?
Correct Answer: D. Nikola Tesla
Nikola Tesla developed AC motors and transmission systems that could send electricity over long distances efficiently. His work prevailed over Edison's Direct Current (DC) system during the 'War of Currents'. Modern power grids are based on Tesla's AC principles.