UPSC NDA-2

21. Chalk and marble are different forms of

Chalk and marble are different forms of

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Calcium hydrogen carbonate
Calcium carbonate
Calcium acetate
Sodium carbonate
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Chalk and marble are both naturally occurring forms of calcium carbonate (CaCO₃).
– Calcium carbonate is a common substance found in rocks as the minerals calcite and aragonite.
– Marble is a metamorphic rock composed primarily of recrystallized carbonate minerals, most commonly calcite.
– Chalk is a soft, white, porous sedimentary rock, a form of limestone composed primarily of the mineral calcite.
– While chemically the same (CaCO₃), chalk, limestone, and marble differ in their crystal structure, formation process, and physical properties like hardness and texture.
– Calcium carbonate is also the main component of shells of marine organisms, snails, and eggshells.

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22. MILAN, a multilateral naval exercise, 2020 was hosted by which one of

MILAN, a multilateral naval exercise, 2020 was hosted by which one of the following cities ?

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Port Blair
Kochi
Visakhapatnam
Panaji
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MILAN, a multilateral naval exercise, was scheduled to be hosted by Visakhapatnam in 2020.
– MILAN is a biennial multilateral naval exercise conducted by the Indian Navy.
– The 2020 edition was planned to be the largest ever, with participation from over 40 countries.
– Although Visakhapatnam was designated as the host city and preparations were underway, the exercise was ultimately cancelled due to the global COVID-19 pandemic.
– MILAN aims to enhance professional interaction and build bridges of friendship among participating navies.

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23. In January 2020, a passenger aircraft crashed in Iran soon after takin

In January 2020, a passenger aircraft crashed in Iran soon after taking off from Tehran’s Imam Khomeini airport killing about 170 people onboard. The airplane belongs to

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Qatar Airways
Ukraine International Airlines
Singapore Airlines
Cathay Pacific
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The passenger aircraft that crashed in Iran shortly after taking off from Tehran’s Imam Khomeini airport in January 2020 belonged to Ukraine International Airlines (UIA).
– The flight was PS752, bound for Kyiv, Ukraine.
– All 176 people aboard were killed.
– Investigations later revealed that the aircraft was mistakenly shot down by Iranian air defence forces amidst heightened tensions with the United States.
– The incident sparked international outrage and calls for accountability.

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24. Which one of the following was the official mascot of Khelo India Yout

Which one of the following was the official mascot of Khelo India Youth Games, 2020 ?

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Vijaya
Yaya
Rongmon
Ammu
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The official mascots for the Khelo India Youth Games 2020, held in Guwahati, Assam, were ‘Jaya’ the Blackbuck and ‘Vijaya’ the Tiger.
– The mascots represent the rich biodiversity and cultural heritage of the host state, Assam.
– ‘Jaya’ symbolizes speed and agility, while ‘Vijaya’ represents power and determination.
– Khelo India Youth Games is a multi-disciplinary grassroots sports competition in India, promoting sports culture among young people.
– The 2020 edition was the third iteration of the games.

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25. Koneru Humpy excels in which one of the following sports ?

Koneru Humpy excels in which one of the following sports ?

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Boxing
Table Tennis
Chess
Billiards
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Koneru Humpy is a prominent Indian sports personality recognized for her achievements in chess.
– Koneru Humpy is a Grandmaster chess player.
– She was the youngest woman ever to achieve the title of Grandmaster at the age of 15 years, 1 month, 27 days.
– She has won multiple accolades in international chess tournaments, including the World Rapid Chess Championship in 2019.
– She is considered one of India’s greatest female chess players.

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26. ‘Naseem-Al-Bahr’ is a bilateral naval exercise between India and

‘Naseem-Al-Bahr’ is a bilateral naval exercise between India and

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United Arab Emirates
Iran
Saudi Arabia
Oman
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The correct option is (D) Oman.
‘Naseem-Al-Bahr’ (meaning ‘Sea Breeze’) is a biennial bilateral naval exercise conducted between the Indian Navy and the Royal Navy of Oman.
This exercise series began in 1993 and has grown in complexity and scope over the years. It aims to enhance interoperability, mutual understanding, and joint operational capabilities between the two navies. India and Oman share a strategic partnership and cooperation in defense and security is a key aspect of their relationship.

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27. Which one of the following is the oldest scientific department of Gove

Which one of the following is the oldest scientific department of Government of India ?

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Department of Biotechnology
Survey of India
India Meteorological Department
DRDO
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The correct option is (B) Survey of India.
The Survey of India is the oldest scientific department of the Government of India. It was established in 1767 under the British East India Company.
The Survey of India is India’s national mapping and charting organization. While it began operations in 1767, its formal establishment date is sometimes cited later, but it predates the India Meteorological Department (established 1875), the Department of Biotechnology (established 1986), and DRDO (established 1958). Its primary role is to provide geographical information for development, defence, and administration.

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28. Which one of the following countries is called the ‘country of winds’

Which one of the following countries is called the ‘country of winds’ ?

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India
China
Denmark
Germany
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The correct option is (C) Denmark.
Denmark is often referred to as the ‘country of winds’ due to its geographical location, which experiences strong and consistent winds, and its significant investment in and reliance on wind energy, making it a global leader in this sector.
Denmark has a high percentage of its electricity consumption covered by wind power, often exceeding 50% annually. This leadership in wind energy technology and utilization reinforces its association with wind.

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29. Which one of the following countries has hosted the Army Exercise TSEN

Which one of the following countries has hosted the Army Exercise TSENTR, 2019 ?

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Russia
China
Kazakhstan
Kyrgyzstan
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The correct option is (A) Russia.
The strategic command-post exercise ‘TSENTR-2019’ (Centre 2019) was hosted by Russia. It is one of the four major annual strategic exercises conducted by the Russian Armed Forces.
TSENTR-2019 was held from September 16 to 21, 2019, in Russia. It involved troops from several countries, including all Shanghai Cooperation Organisation (SCO) member states like India, China, Kazakhstan, Kyrgyzstan, Pakistan, Tajikistan, and Uzbekistan, as well as some other friendly countries. The exercise focused on counter-terrorism operations and ensuring military security in the Central Asian strategic direction.

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30. Which one of the following was the theme of the World Tourism Day, 201

Which one of the following was the theme of the World Tourism Day, 2019 ?

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Sustainable tourism
Tourism and the digital transformation
Tourism : responding to the challenge of climate change
Tourism and jobs : a better future for all
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The correct option is (D) Tourism and jobs : a better future for all.
The theme for World Tourism Day, observed annually on September 27th, in 2019 was “Tourism and Jobs: a better future for all”. The theme highlighted the tourism sector’s vast potential to create employment opportunities and build a better future globally.
World Tourism Day is celebrated by the United Nations World Tourism Organization (UNWTO) to foster awareness among the international community of the importance of tourism and its social, cultural, political, and economic value. Previous themes included ‘Tourism and the Digital Transformation’ (2018) and ‘Sustainable Tourism – a Tool for Development’ (2017).

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