UPSC NDA-1 Archives

1. Which one of the following statements regarding Cholera is correct ?

Which one of the following statements regarding Cholera is correct ?

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Cholera is a disease that causes loss of memory

Cholera is a disease of muscles due to consumption of alcohol

Cholera is a disease due to consumption of contaminated food or water

Cholera is a genetic disease

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Cholera is a disease due to consumption of contaminated food or water.

Cholera is caused by the bacterium Vibrio cholerae, which is transmitted through the fecal-oral route.

Ingestion of water or food contaminated with the feces of an infected person is the primary mode of transmission. The bacterium produces a toxin that causes severe watery diarrhea, leading to rapid dehydration. It is not a genetic disease, nor primarily related to alcohol consumption or causing loss of memory.

2. Which one of the following organelles of mammalian cell is rich in hyd

Which one of the following organelles of mammalian cell is rich in hydrolytic enzymes ?

Mitochondria

Ribosomes

Lysosome

Nucleus

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Lysosomes are the organelles of mammalian cells that are rich in hydrolytic enzymes.

Lysosomes contain enzymes like proteases, lipases, nucleases, and glycosidases, which work optimally in an acidic environment (pH ~4.5-5.0).

These enzymes are responsible for breaking down waste materials, cellular debris, excess organelles, and ingested pathogens through processes like phagocytosis and autophagy. Mitochondria are involved in energy production, ribosomes in protein synthesis, and the nucleus contains genetic material.

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3. Which one of the following statements regarding Penicillin is correct

Which one of the following statements regarding Penicillin is correct ?

Penicillin resistant bacteria can store this antibiotic in vacuole

Penicillin resistant bacteria can degrade this antibiotic by an enzyme called β-lactamase

Penicillin resistant bacteria can degrade this antibiotic by an enzyme called lactic acid dehydrogenase

Penicillin is not absorbed by bacteria, so most bacteria are resistant

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Penicillin resistant bacteria can degrade this antibiotic by an enzyme called β-lactamase.

Beta-lactamase enzymes break the beta-lactam ring structure, which is essential for the activity of penicillin and related antibiotics.

Bacterial resistance to antibiotics, including penicillin, is a significant public health challenge. Different bacteria have evolved various mechanisms to resist antibiotics, with beta-lactamase production being one of the most common for resistance to penicillin.

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4. Which one of the following statements regarding Electrocardiogram is c

Which one of the following statements regarding Electrocardiogram is correct ?

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Electrocardiogram is graphical representation of electrical activity of cornea

Electrocardiogram is graphical representation of activity of kidney

Electrocardiogram is graphical representation of activity of brain

Electrocardiogram is graphical representation of electrical activity of heart

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Electrocardiogram (ECG) is a graphical representation of the electrical activity of the heart.

An ECG machine records the electrical signals generated by the heart as it beats.

ECGs are used to diagnose various heart conditions, such as arrhythmias, myocardial infarction (heart attack), and heart failure by analyzing the patterns of electrical waves. It does not measure activity of the cornea, kidney, or brain (which is typically measured by EEG).

5. As per the code of the nomenclature, which one of the following is the

As per the code of the nomenclature, which one of the following is the correct way of writing a biological name?

Amoeba Proteus

Amoeba proteus

amoeba proteus

<u>Amoeba</u> <u>Proteus</u>

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The correct way of writing a biological name as per the code of nomenclature is ‘Amoeba proteus’.

In binomial nomenclature, the genus name starts with a capital letter, and the species name starts with a small letter. Both names are typically italicized or underlined.

This system of nomenclature was largely developed by Carl Linnaeus. It provides a unique and internationally recognized name for each species. When handwritten, the genus and species names are usually underlined separately; when printed, they are typically italicized.

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6. Who among the following was posthu-mously conferred with the Ashoka Ch

Who among the following was posthu-mously conferred with the Ashoka Chakra, India’s highest peacetime gallantry award, in 2019 ?

Jyoti Prakash Nirala

Nazir Ahmad Wani

Hangpan Dada

Mohan Nath Goswami

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Lance Naik Nazir Ahmad Wani was posthumously conferred with the Ashoka Chakra in 2019.

The Ashoka Chakra is India’s highest peacetime gallantry award.

Lance Naik Wani was a former militant who joined the Army and became a decorated counter-terrorist soldier. He was awarded the Ashoka Chakra for his exemplary courage and sacrifice during an operation in Shopian, Jammu and Kashmir, in November 2018.

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7. Which of the following pairs of old names and new names of islands in

Which of the following pairs of old names and new names of islands in India is/are correctly matched ?

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1. Ross Island : Shaheed Dweep
2. Neil Island : Netaji Subhas Chandra Bose Dweep
3. Havelock Island : Swaraj Dweep

Select the correct answer using the code given below :

1, 2 and 3

2 and 3 only

1 and 2 only

3 only

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Only the pair ‘Havelock Island : Swaraj Dweep’ is correctly matched.

The renaming of three islands in the Andaman & Nicobar archipelago took place in December 2018.

The correct new names are: Ross Island is Netaji Subhas Chandra Bose Dweep, Neil Island is Shaheed Dweep, and Havelock Island is Swaraj Dweep. The renaming was done to honor Netaji Subhas Chandra Bose’s visit to the islands in 1943.

8. India’s first private sector Howitzer gun-making unit is located at

India’s first private sector Howitzer gun-making unit is located at

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Jamshedpur

Kolkata

Hazira

Gwalior

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India’s first private sector Howitzer gun-making unit is located at Hazira.

The unit is operated by Larsen & Toubro (L&T).

The facility at Hazira, Gujarat, was set up to manufacture the K9 Vajra-T 155mm/52 calibre Tracked Self-Propelled Howitzer guns for the Indian Army under a contract with the Ministry of Defence.

9. Who among the following was named ICC’s emerging player of the year 20

Who among the following was named ICC’s emerging player of the year 2018 ?

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Rishabh Pant

Josh Hazlewood

Hasan Ali

Mustafizur Rahman

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Rishabh Pant was named the ICC Emerging Player of the Year for 2018.

The ICC Awards recognize top performers and moments in international cricket over a calendar year.

Rishabh Pant is an Indian cricketer known for his wicket-keeping and aggressive batting. He was recognized for his impressive performances in Test cricket, including centuries in England and Australia.

10. Which one of the following cities was named by UNESCO as World Capital

Which one of the following cities was named by UNESCO as World Capital of Architecture for 2020 ?

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Tokyo

Johannesburg

Rio de Janerio

New Delhi

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The city named by UNESCO as World Capital of Architecture for 2020 was Rio de Janeiro.

This designation is jointly awarded by UNESCO and the International Union of Architects (UIA) every three years.

The designated city hosts the UIA World Congress of Architects. Rio de Janeiro’s nomination was based on its vibrant culture, historical buildings, and commitment to using architecture and urban planning as tools for social development and environmental sustainability.