471. Which of the following inventions were done by Thomas Alva Edison?

A. Incandescent lamp
B. Phonograph C (Gramophone) and microphone
C. Carbon telephone transmitters
D. All of the above
✅ The correct answer is option D.
Incandescent lamp, Phonograph C (Gramophone) and microphone and Carbon telephone transmitters inventions were done by Thomas Alva Edison. Thomas Alva Edison was an American inventor and businessman who has been described as America’s greatest inventor. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures.

472. India’s first satellite is named after

A. Aryabhatta
B. Bhaskara II
C. Bhaskara I
D. Barahmihir
✅ The correct answer is option A.
India’s first satellite is named after Aryabhatta. The Aryabhata spacecraft,named after the famous indian astronomer,was india’s first satellite;It was completely designed and fabricated in India.It was launched by a Soviet Kosmos-3M rocket from Kapustin Yar on April 19,1975.

473. The normal term of office for which the President and Vice-President of the International Court of Justice are elected is

A. three years
B. five years
C. seven years
D. nine years
✅ The correct answer is option A.
The normal term of office for which the President and Vice-President of the International Court of Justice are elected is three years.

474. National Institute of Occupation Health is located at

A. Bangalore
B. Ahmedabad
C. Pune
D. Mumbai
✅ The correct answer is option B.
National Institute of Occupation Health is located at Ahmedabad. National Institute of Occupational Health, also known as Statens arbeidsmiljøinstitutt or STAMI is a government body organised by the Norwegian Ministry of Labour and Social Inclusion.

475. The Indian Olympic Council was established in

A. 1938
B. 1986
C. 1924
D. 1914
✅ The correct answer is option C.
The Indian Olympic Council was established in 1924. In 1923-24, a provisional All India Olympic Committee was set-up, which organised the All India Olympic Games (that later became the National Games of India) in February 1924.

476. The Netaji Subhas National Institute of Sports is located at

A. Bangalore
B. Kolkata
C. Darjeeling
D. Patiala
✅ The correct answer is option D.
The Netaji Subhas National Institute of Sports is located at Patiala. Netaji Subhas National Institute of Sports, Patiala India which is also Asia’s largest Sports Institutes housed in the palatial monumental building and sprawling lawns built by the erstwhile Maharaja of Patiala whose descendants dedicated this complex for the promotion of sports to the people of India. This Institute is popularly known as the “Mecca” of Indian Sports and has produced Coaches of high caliber.

478. When did Christopher Columbus discovered the West Indies?

A. 1455 AD
B. 1492 AD
C. 1139 AD
D. 1556 AD
✅ The correct answer is option B.
Christopher Columbus discovered the West Indies in 1492 AD. He was an Italian explorer and colonizer who completed four voyages across the Atlantic Ocean that opened the New World for conquest and permanent European colonization of the Americas.

479. The theory of utilitarianism was expounded by

A. Jeremy Bentham (1748-1836)
B. James Mill(1773-1839)
C. Henry Sidgwick (1838-1900)
D. All of the above
✅ The correct answer is option D.
The theory of utilitarianism was expounded by Jeremy Bentham (1748-1836), James Mill(1773-1839) and Henry Sidgwick (1838-1900). Utilitarianism is a normative ethical theory that places the locus of right and wrong solely on the outcomes (consequences) of choosing one action/policy over other actions/policies.

480. Hermann Scheer (Germany) received right Livelihood Award in 1999 for

A. his long standing efforts to end the impunity of dictators
B. his indefatigable work for the promotion of solar energy worldwide
C. showing that organic agriculture is a key to both environmental sustainability and food security
D. None of the above
✅ The correct answer is option B.
Hermann Scheer (Germany) received right Livelihood Award in 1999 for his indefatigable work for the promotion of solar energy worldwide. Hermann Scheer was a Social Democrat member of the German Bundestag, President of Eurosolar and General Chairman of the World Council for Renewable Energy.