BPSC CDPO Exam 2022 Solved Paper

Ans: (C)

Solution: Zepto is a unit prefix in the metric system denoting a factor of 10 to the power −21 (10^-21).

Other Prefix Units are: 

1. nano: 10^-9
2. pico: 10^-12
3. femto: 10^-15
4. atto: 10^-18
5. yocto: 10^-24

Ans: (B)

Solution: The time period of oscillation of a wave is defined as the time taken by any element of the string to complete one such oscillation. A pendulum clock takes 1 second to move from one extreme to the other extreme. As a result, one oscillation takes 2 seconds.

Ans: (D)

Solution: Do you know how the atmospheric pressure at a point on the Earth surface changes?

Case 1: Suppose there is intense sunlight above Chennai, this will heat up the air and subsequently , the heated air will rise reducing the atmospheric pressure recorded at the ground level. The rising air will loose its moisture due to adiabatic change and rainfall will be caused.

Case 2: The rising air from the Chennai main land will subside at some place like Tirupati. This air will subside and will create more atmospheric pressure. This subsiding air will be dry and will not cause any rainfall in Tirupati.

Hence, Sudden Rise in Barometric Pressure is the case of Tirupati in example and will indicate extremely dry weather in near future.

Ans: (B)

Solution: The expansion of water helps to preserve aquatic life during very cold weather. When temperature falls, the top layer of water in a pond contracts, becomes denser and sinks to the bottom. A circulation is thus set up until the entire water in the pond reaches its maximum density at 4°C. If the temperature falls further, the top layer expands and remains on the top till it freezes. Thus even though the upper layer are frozen the water near the bottom is at 4°C and the fishes etc. can survive in it easily.

Ans: (E)

Solution: The main gases responsible for the greenhouse effect include carbon dioxide, methane, nitrous oxide, and water vapor, Chlorofluorocarbons, Ozone, and fluorinated gases.

The greenhouse gas which has the highest global warming potential is sulphur hexafluoride (SF6). 

Ans: (A)

Solution: In order to see the hair at the black of the head, the two plane mirrors are placed parallel at the front and at the back of the viewer.

Note: Infinite images are formed when the two parallel images are placed parallel to each other.

Ans: (C)

Solution: The hearing frequency range of the cat extends from 48 Hz to 85 kHz, giving it one of the broadest hearing ranges among mammals.

Ans: (A)

Solution: There will be two points equidistant from the centre of the magnet in the north and south directions where the magnetic field of the bar magnet and the horizontal component of the earth’s magnetic field are equal and opposite. Hence, there will be two points where the neutral point will be present when a bar magnet is aligned with its north pole to the geographic north of Earth.

Ans: (B)

Solution: ‘Convex Mirror’ is used in shopping stores to watch the activities of customers. This is because the convex mirror has large field of view.

Convex mirrors are also used as rear-view mirrors in automobiles and vehicles because they can diverge light beams and make virtual images.

Ans: (A)

Solution: The process of charging a conductor by induction includes bringing another charged conductor close to it, but without any physical contact between the two conductors.

In such case, the side of the conductor closer to the charging conductor acquires the kind of charge opposite to that on the charging conductor, and the side farther away from the charging conductor acquires the kind of charge similar to that on the charging conductor.

Ans : (C)

Solution: In chemical analysis, chromatography is a laboratory technique for the separation of a mixture into its components. The mixture is dissolved in a fluid solvent called the mobile phase, which carries it through a system on which a material called the stationary phase is fixed.

Ans: (B)

Solution: The X- in X-ray stands for new, unknown because when discovered by Wilhelm Roentgen in 1895, they were in fact unknown. He also don’t know about these radiation.

Ans:(A)

Solution: Water gas is a kind of fuel gas, a mixture of carbon monoxide and hydrogen. It is produced by “alternately hot blowing a fuel layer with air and gasifying it with steam.”

Ans: (C)

Solution: A Water has a high specific heat. Water neither heats up or cools down quickly. This property makes water an excellent cooling agent.

Ans: (A)

Solution: Colloids have the particle size range between 10^−7 to 10^−10 m.

Ans: (B)

Solution: Sugar charcoal is the purest form of amorphous carbon. It is prepared by heating cane-sugar or glucose in the absence of air.

Ans: (B)

Solution: Berzelius proposed that chemical symbols should be based on the Latin names of the elements. It usually consists of one or two letters from the Latin alphabet.
For example, the chemical symbol of lead is Pb which is derived from Plumbum in Latin.

Ans: (C)

Solution: Features of Chemical Change

• Production of heat, light, or sound. i.e. change in Energy.
• Production of gas not present in the reactants.
• A permanent change in color.
• Production of a precipitate.
• Change in odor or taste.
• Change in density.
• Change in temperature.
• It is normally irreversible

Ans: (A)

Solution: Desiccants are commonly used to keep products dry and stable. Dry desiccants can absorb moisture from air either by physical adsorption or by chemical reaction, and thus reduce the humidity in the headspace of sealed containers.

Ans: (B)

Solution: CO combines with hemoglobin of blood. Carbon monoxide reacts readily with hemoglobin reducing space for oxygen to combine with the tissues needed to carry oxygen.

Ans: (C)

Solution: In higher organisms, cloning is achieved through biotechnology. Example, Sheep Dolly.

Ans: (D)

Solution: Both animal and plant cells are eukaryotic cells and have several similarities. The similarities include common organelles like cell membrane, cell nucleus, mitochondria, endoplasmic reticulum, ribosomes and golgi apparatus.

Ans: (C)

Solution: A tendon is a fibrous connective tissue that attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball.

Ans: (C)

Solution: The part of the flower that becomes a fruit is called the ovary. After fertilization, the ovary develops into fruit and the ovules develop into seeds. Sepals and petals fall off after fertilization. Stamen is the male reproductive part of the flower that does not develop into a fruit.

Ans: (C)

Solution: Rana tigrina is an example of binomial nomenclature. Rana is the generic name and tigrina is the specific epithet. Rana tigrina is the scientific name of the Indian frog from class Amphibia.

Ans: (B)

Solution: The most common carrier of communicable diseases is housefly. The disease that spread from one person to the other person or from animal to person is called communicable disease.

House flies are strongly suspected of transmitting at least 65 diseases to humans, including typhoid fever, dysentery, cholera, poliomyelitis, yaws, anthrax, tularemia, leprosy and tuberculosis.

Ans: (C)

Solution: Carrots are an excellent source of vitamin A, another antioxidant that carrots provide is vitamin C.

Ans: (B)

Solution: Ball-and-socket joints, such as the shoulder and hip joints, allow backward, forward, sideways, and rotating movements.

Ans: (A)

Solution: Our skin regulates your body temperature through blood vessels and through the process of sweating. The skin is in effect our body’s thermostat.

Ans: (C)

Solution: Yeast is a single-cell organism, which needs food, warmth, and moisture to thrive. It converts its food—sugar and starch—through fermentation, into carbon dioxide and alcohol. It’s the carbon dioxide that makes baked goods rise.

Ans: (C)

Ans: (D)

Solution: Central Vista Redevelopment Project refers to the ongoing redevelopment to revamp the Central Vista, India’s central administrative area located near Raisina Hill, New Delhi.

Ans: (C)

Solution: In India, Good Governance Day (Sushasan Divas) is observed annually on 25th December. On this day nation celebrates the birth anniversary of Bharat Ratna and former-Prime Minister Atal Bihari Vajpayee.

Ans: (C)

Solution: The Chenab bridge, located in Jammu and Kashmir, aims to boost connectivity to the Kashmir Valley. The Chenab bridge holds the distinction of being the highest railway bridge in the world at 359 metres above the river bed level.

Ans: (C)

Solution: ‘One Nation, One Ration Card’ scheme was launched in four states on pilot basis in 2019 by the Union Minister Ram Vilas Paswan. This card will enable migrant workers to get cheap food grains with one ration card across the country.

Ans: (C)

Solution: The main objective of Mission Indradhanush is to ensure high coverage of children and pregnant women with all available vaccines throughout the country. 

Ans: (D)

Solution: (ASI) has unearthed a Buddhist monastery, believed to be at least 900 years old, buried under a mound in a village situated in a hilly area of Hazaribagh district of Jharkhand.

Ans: (D)

Solution: Hyderabad city (Telangana’s Capital) has been recognised as a ‘2020 Tree City of the World’ by the Arbor Day Foundation and the Food and Agriculture Organisation of the United Nations (FAO).

Ans: (D)

Solution: New Delhi has been ranked the world’s most polluted capital city for s second consecutive year followed by Dhaka (Bangladesh).

Ans: (C)

Solution: The Rajiv Gandhi Khel Ratna stands renamed as the “Major Dhyan Chand Khel Ratna”.

Ans: (A)

Solution: Athletes from the United States won the most medals overall, with 113, and the most gold medals, with 39. 

Ans: (A)

Solution: The United Arab Emirates has made history as the first Arab country to reach Mars. The Hope Mars mission will study the atmosphere of the Red Planet.

Ans: (D)

Solution: Scotland became the first country to provide sanitary pads to anyone who needs them.

Ans: (C)

Solution: The Quadrilateral Security Dialogue (QSD) or QUAD Group is an informal strategic forum comprising India, Japan, Australia and the United States of America.

Ans: (D)

Solution: The Norwegian Nobel Committee is responsible for the selection of eligible candidates and the choice of the Nobel Peace Prize laureates. The Committee is composed of five members appointed by the Storting (Norwegian parliament).

Ans: (C)

Solution: Ngozi Okonjo-Iweala is a Nigerian-American economist, fair trade leader, environmental sustainability advocate, human welfare champion, sustainable finance maven and global development expert. Since March 2021, Okonjo-Iweala has been serving as Director-General of the World Trade Organization.

Ans: (C)

Solution: After the Taliban seized power in Afghanistan, they changed the name of the country to the “Islamic Emirate of Afghanistan” — a name that was in use when the fundamentalist group previously ruled the country, from 1996 to 2001.

Ans: (A)

Solution: The 2021 US Open was held in New York City, USA. Daniil Medvedev won the men’s singles title.

Ans: (C)

Solution: Pune-based Serum Institute of India partnered with the Oxford University to manufacture their Covishield vaccine in India.

Ans: (C)

Solution: China–Pakistan Economic Corridor is a collection of infrastructure projects that are under construction throughout Pakistan beginning in 2013.

Ans: (B)

Solution: The first Kisan Rail train was flagged-off on 07.08. 2020 between Devlali (Mah) and Danapur (Bihar).

Ans: (B)

Solution: Shri Ram Vilas Paswan was (posthumously) awarded the Padma Bhushan for the year 2021.

Ans: (A)

Solution: The following 4 personalities were given the Padma Shri award-Smt. Dulari Devi (in the field of Arts), Shri Ramchandra Manjhi (in the field of art), Dr. Dilip Kumar Singh (in the field of medicine), Mrs. Mridula Sinha (Posthumous) – In the field of literature and education.

Ans: (D)

Solution: Dr. Dilip Kumar Singh (medicine) was also honored with Padma Shri Award.

Ans: (A)

Solution: Lance Naik Albert Ekka, a soldier in the Indian Army, was martyred during the Indo-Pakistan War of 1971. He was posthumously awarded the Param Vir Chakra, India’s highest award for the sacrifice of life on the battlefield.

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Solution: Ashok Kumar was honored with the Dadasaheb Phalke Award in 1988.

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Solution: Ravish Kumar is the winner of the Ramon Magsaysay Award 2019 for journalism.

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Solution: Choti Kumari won the Women’s Creativity in Rural Life Award from the Switzerland for her efforts to uplift the Musahar community.

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Solution: 5th International Dharma Dhamma Conference was organized by India Foundation in collaboration with Nalanda University on 27-28 July 2019 at Rajgir.

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Solution: Rajendra Prasad was honored with the Bharat Ratna, India’s highest civilian award in the year 1962. His autobiography, Atmakatha, was published in 1946.

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Solution: Satvahanas, whose kingdom corresponds with present-day Andhra, Telangana, and Maharashtra, used lead in their coins.

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Solution: Asoka and the Decline of the Mauryas was first published in 1961 and written by the famous Indian historian Romila Thapar.

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Solution: It is in excellent Sanskrit, written in Gupta script by the poet and minister, Harishena. The inscription praises Samudragupta and lists the political and military achievements of his reign including his expeditions to the south.

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Solution: Buddha sculptures and stupas at Borobudur, central Java, Indonesia, are known as indo-Javanese art. The building shows a Buddhist transition from the lowest manifestations of reality at the base, through a series of regions representing psychological states, toward the ultimate condition of spiritual enlightenment at the top.

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