4. Who invented the steam engine in 1769?
(a) Rudolph Diesel
(b) Gottlieb Daimler
(c) Volta
(d) James Watt
5. Mineral oil was found in
(a) Canada
(b) Russia
(c) USA
(d) Brazil
B. Who developed a machine which could be run by petrol?
Answer (2)
James Watt invented the steam engine in 1769. Mineral oil was found in the USA, starting a significant industry. The first petrol-powered machine was developed by Karl Benz in 1885.
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The correct answer is (d) James Watt.
James Watt was a Scottish inventor and mechanical engineer whose improvements to the steam engine were fundamental to the changes brought by the Industrial Revolution. In 1769, he patented Watt’s steam engine, which significantly improved the efficiency of the earlier Newcomen steam engine by adding a separate condenser, which reduced energy waste and increased power.
The correct answer is (c) USA.
Mineral oil was first discovered in the United States, particularly with the discovery of oil in Titusville, Pennsylvania, in 1859 by Edwin Drake. This marked the beginning of the modern petroleum industry.
B. Very short answer type questions.
The machine which could be run by petrol, known as the internal combustion engine, was significantly developed by Karl Benz and Gottlieb Daimler. Gottlieb Daimler was one of the key figures who developed petrol engines and applied them to automobiles.
