Free Inventions and Discoveries MCQs with Answers

• A. Yuan
• B. John Austin
• C. Zhang Yiming
• D. None of these

Explanation: Zhang Yiming founded ByteDance, the Chinese technology company that developed TikTok’s international version from the app Douyin.

• A. Brazil
• B. China
• C. India
• D. Bangladesh

Explanation: Yuan Longping was a Chinese agronomist known as the “father of hybrid rice” for developing high-yield rice varieties.

• A. Robert Alberta
• B. Mac Milan
• C. Roger Blair
• D. Karl von Drais

Explanation: Karl von Drais demonstrated the earliest commercially successful two-wheeled bicycle, or draisine, in 1817.

• A. Iranian
• B. Asian
• C. African
• D. Australian

Explanation: Australia uses polymer banknotes, which are much more resistant to water, tearing and counterfeiting than traditional paper notes.

• A. USA
• B. UK
• C. France
• D. Russia

Explanation: Margaret Keenan received the first Pfizer-BioNTech COVID-19 vaccine outside clinical trials in the United Kingdom in December 2020.

• A. 2008
• B. 2010
• C. 2012
• D. 2014Science

Explanation: The Breakthrough Prizes are popularly called the “Oscars of Science” because they recognize major achievements in fields such as physics…

• A. 0.05 seconds
• B. 0.06 seconds
• C. 0.07 seconds
• D. 0.08 seconds

Explanation: Human auditory perception can identify and recognize a sound in roughly 0.05 seconds under suitable conditions.

• A. Paramount Pictures
• B. Babelsberg Film Studio
• C. Hengdian World Studio
• D. Metro-Goldwyn-Mayer

Explanation: Babelsberg Film Studio near Berlin began operating in 1912 and is widely regarded as the world’s oldest large-scale film studio still…

• A. Helium
• B. Hydrogen
• C. Chlorine
• D. Nitrogen

Explanation: Chlorine was the first poisonous gas used on a large scale in World War I, notably by Germany at the Second Battle of Ypres in 1915.

• A. Pakistan
• B. India
• C. UK
• D. None of these

Explanation: The reported development was by researchers in the United Kingdom, who worked on devices for storing energy generated from renewable…

• A. Tristan Da Cunha
• B. New Guinea
• C. Abu Dhabi
• D. None of these

Explanation: The pearl was found on Marawah Island off Abu Dhabi in the United Arab Emirates and is roughly 8,000 years old.

• A. L
• B. C
• C. D
• D. M

Explanation: In Roman numerals, M represents 1,000. The other symbols represent 50 (L), 100 (C), and 500 (D).

• A. L
• B. C
• C. D
• D. M

Explanation: D is the Roman numeral for 500. C represents 100 and M represents 1,000, making them tempting but incorrect alternatives.

• A. L
• B. C
• C. D
• D. M

Explanation: C represents 100 in the Roman numeral system. Its value is lower than D, which represents 500, and M, which represents 1,000.

• A. L
• B. C
• C. D
• D. M

Explanation: L represents 50 in Roman numerals. The nearby symbols C, D, and M represent 100, 500, and 1,000 respectively.

• A. 1857
• B. 1858
• C. 1859
• D. 1860Standardized & Admissions Tests

Explanation: Edwin Drake's well at Titusville, Pennsylvania, drilled in 1859, is generally regarded as the first commercial oil well in the United…

• A. Zhao Jiuzhang
• B. Zhang Jie
• C. Sir Charles Kuen Kao
• D. Tsung-Dao Lee

Explanation: Zhao Jiuzhang led China’s early satellite research and is therefore remembered as the father of Chinese artificial satellites.

• A. Frédéric Joliot-Curie
• B. Qian Sanqiang
• C. Chen-Ning Franklin Yang
• D. Wang Ganchang

Explanation: Qian Sanqiang directed major Chinese nuclear research and is widely called the father of China’s atomic bomb.

• A. North Korea
• B. China
• C. USA
• D. USSR

Explanation: North Korea’s first nuclear test, conducted in 2006, was an underground detonation.

• A. Pakistan
• B. China
• C. India
• D. Australia

Explanation: Australotitan cooperensis, identified in Australia, is among the largest dinosaur species discovered.