451. What was the purpose of establishment of NATO?

A. To maintain and develop individual and collective capacity to resist armed attack
B. To defend economic and trade interests of the developing nations of the world
C. TO provide collective defence and economic cooperation in south-east Asia
D. None of the above
✅ The correct answer is option A.
The purpose of establishment of NATO was to maintain and develop individual and collective capacity to resist armed attack. NATO was the first peacetime military alliance the United States entered into outside of the Western Hemisphere.

452. Guru Gobind Singh was

A. the 10th Guru of the Sikhs
B. founder of Khalsa, the inner council of the Sikhs in 1699
C. author of Dasam Granth
D. All the above
✅ The correct answer is option D.
Guru Gobind Singh (1666 – 1708). The 10th Guru of the Sikhs who founded the Khalsa the inner council of the Sikhs in 1699. He is said to be the author of Dasam Granth.

453. The Scottish bacteriologist who discovered penicillin was

A. Alexander Fleming
B. Albert Einstein
C. Archimeder
D. Aryabhatta
✅ The correct answer is option A.
The Scottish bacteriologist who discovered penicillin was Alexander Fleming. In 1928 Alexander Fleming discovered penicillin, though he did not realize the full significance of his discovery for at least another decade. He eventually received the Nobel Prize in Physiology or Medicine in 1945.

454. People who secretly indulge in anti-national or anti-government activities and help the enemy are called

A. Second column
B. Third column
C. Fourth column
D. Fifth column
✅ The correct answer is option D.
People who secretly indulge in anti-national or anti-government activities and help the enemy are called Fifth column. A fifth column is any group of people who undermine a larger group from within, usually in favor of an enemy group or nation. The activities of a fifth column can be overt or clandestine. Fifth column Refers to traitors or people who secretly indulge in anti-national or anti -government activities and help the enemy.

455. Which industries are found in Goa?

A. Mining and various small-scale industries like manufacturing soaps, paper and so on
B. steel and cement industries
C. Oil refineries
D. None of the above
✅ The correct answer is option A.
Mining and various small-scale industries like manufacturing soaps, paper and so on industries are found in Goa. Goa has a strong presence in mining, tourism and pharmaceuticals sectors. Mining (iron ore and manganese), pharmaceuticals, iron and steel industries are present in North Goa while mining and shipbuilding industries are present in South Goa.

456. The Roman governor and principal assassin in the murder of Julies Caesar was

A. Marcus Junius Brutus
B. Marco Polo
C. Leon Trotsky
D. Karl Markx
✅ The correct answer is option A.
The Roman governor and principal assassin in the murder of Julies Caesar was Marcus Junius Brutus. Marcus Junius Brutus, often referred to simply as Marcus Brutus or Brutus, was a Roman senator during the political turmoil of the late Roman Republic. He took a leading role in the assassination of Julius Caesar.

457. Which of the following are the important sects of Islam?

A. Catholics and Protestants
B. Sunnis and Shias
C. Mahayana and Hinayan
D. None of the above
✅ The correct answer is option B.
Sunnis and Shias are the important sects of Islam. Shia and Sunni Islam are the two major denominations of Islam. They chose sides following the death of the Islamic prophet Muhammad in AD 632.

458. Super conductivity is a phenomenon in which the resistance of a substance

A. increases with temperature
B. decreases with temperature
C. does not change with temperature
D. becomes zero at very low temperature
✅ The correct answer is option D.
Super conductivity is a phenomenon in which the resistance of a substance becomes zero at very low temperature. Superconductors are solids that at low temperatures exhibit zero resistance to the flow of electrical current, a phenomenon known as superconductivity. The temperature at which the electrical resistance of a substance drops to zero is its superconducting transition temperature (T c).

460. When the batsman, in cricket, is out without scoring a single run, is called

A. drive
B. duck
C. flight
D. googly
✅ The correct answer is option B.
When the batsman, in cricket, is out without scoring a single run, is called duck. The term “duck” comes from the shape of the number ‘0’ which is similar to that of duck’s egg. In 1886, when the Prince of Wales got out without scoring a single run, the term ‘duck’ was used for the first time.