English (Part – B) (NDA SOLVED PAPER 2020 – II) (51 to 100)

Total Questions: 50

21. Chalk and marble are different forms of

Correct Answer: (b) Calcium carbonate
Solution:Chalk and marble are different forms of calcium carbonate.
The chemical formula of calcium carbonate is CaCO3 . In Earth it is produced by the sedimentation of shells of fossilised fishes, shells one million of years.
It is a precursor of quick lime and slaked lime.

22. The number of maximum electrons in N Shell is

Correct Answer: (d) 32
Solution:

23. Vinegar is also known as

Correct Answer: (a) Ethanoic acid
Solution:Vinegar is also known as Ethanoic acid. It’s chemical formula is CH3COOH. It contains 5-8% acetic acid by volume.

24. A liquid is kept in a glass beaker. Which one of the following statements is correct regarding the pressure exerted by the liquid column at the base of the beaker?

Correct Answer: (b) The pressure depends on the height of liquid column
Solution:Statement (b) is correct regarding the pressure exerted by the liquid column at the base of the beaker the pressure depends upon the density (d), height (h) of liquid column and also on acceleration due to gravity (g).
p = hdg

25. Which of the following statements is not correct regarding the travel of sound waves?

Correct Answer: (d) Sound waves can travel through vacuum
Solution:Sound waves need a medium to travel. In vacuum, there is no medium, hence, sound waves cannot travel through vacuum.

26. Deendayal Port is located at

Correct Answer: (b) Gujarat
Solution:Deendayal Port Trust (Kandla) is a seaport in Kutch District of Gujarat. Kandla port was renamed as Deendayal Port Trust under the India Port Act of 1908. It is the largest port of India by volume of cargo handled. Kandla Port Trustis, India’s busiest major port in recent years.
• Kochi Port is in Kerala.
• Mumbai port and Jawaharlal Nehru port are the two major ports of Maharashtra.
• Marmugao is the major port of Goa.
• At present there are 13 major ports in India and nearly 187 notified Minor and Intermediate ports.

27. Which one of the following cities is associated with Biosafety Protocol to the Convention on Biological Diversity (2000)?

Correct Answer: (c) Cartagena
Solution:Cartagena (Colombia) is associated with Biosafety Protocol to the Convention on Biological Diversity. The Cartagena Protocol on Biosafety to the Convention on Biological Diversity is an international agreement which aims to ensure the safe handling, transport and use of Living Modified Organisms (LMOs) resulting from modern biotechnology that may have adverse effects on biological diversity, taking also into account risks to human health. It was adopted on 29th January, 2000 and entered into force on 11th September, 2003.

• Nairobi (Kenya) is the headquarter of ‘United Nations Environment Programme (UNEP) which is responsible for coordinating UN's Environmental activities.

• Geneva (Switzerland) is famous for protocol which prohibits the use of poisonous gases and biological warfare

• Rio de Janerio (Brazil) is famous for United Nations Conference on Environment and Development (UNCED), also known as Earth Summit or Rio Summit in 1992.

28. Krishna Raja Sagara Dam/Reservoir is developed on

Correct Answer: (d) river Kavery
Solution:The Krishna Raja Sagar Dam was built across river Kavery for the Mysore and Mandya districts in Karnataka in 1932.The dam is named for the then ruler of the Mysore Kingdom, Krishnaraja Wodeyar IV.

• The dam is the creation one of the greatest engineers that India had produced, Sir M. Vishweshwaraiah. His birthday, 15th September is celebrated as Engineers Day.

• The reservoir is also the main source of drinking water for all of Mysore city and almost the whole of Bangalore.

• The water released from this dam is further used as an important source of water in the State of Tamil Nadu.

• Tungabhadra dam is located at Tungabhadra river, a tributary of Krishna river.

• Nagarjuna dam, Srisailam are some of the major dams of Krishna river.

• Gangapur dam, Jayakwadi dam , Ghatghor dam are some of the famous dams across Godavari river

29. Which one of the following Indian states does not share international border with two or more countries?

Correct Answer: (d) Tripura
Solution:Tripura does not share international border with two or more countries.
Tripura is bordered by the country of Bangladesh to the West, North and South; and the Indian States of Assam to the North-East; and Mizoram to the East.
Arunachal Pradesh shares international borders with Bhutan in the West, Myanmar in the East, and a disputed border with China in the North at the McMohan Line.
Assam is bordered by Bhutan (in North) and Bangladesh (in South). Mizoram shares international border with Bangladesh and Myanmar.

30. According to Census of India, 2011, which one among the following is the least populated State in India?

Correct Answer: (d) Punjab
Solution:Among the given options, Punjab (27,704,236) is the least populated state, according to 2011 census. It is the 16th most populated state of India.
  • Maharashtra (112,372,972) is the second most populous state of India.
  • Madhya Pradesh (72,597,565) is the fifth most populous state of India.
  • Odisha (41,947,358) is the eleventh largest state of India in terms of population.
  • Uttar Pradesh (199,581,477) is the most populated state of India whereas Sikkim (607,688) is the least populated state of India. According to census, 2011, the total population of India is 1,210,193,422.