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# BPSC CDPO Exam 2022 Solved Paper

## Results

### #1. 1 zepto is equal to

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

### #2. The time period of a pendulum clock is

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.

### #3. A sudden rise in the barometric height indicates

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.

### #4. During very cold weather,_________ of water helps in preserving the aquatic life.

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.

### #5. Which of the following is a greenhouse gas?

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).

### #6. In a barber's shop, two plane mirrors are placed

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.

### #7. The hearing frequency range of cat is

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.

### #8. When a bar magnet is placed in the earth's magnetic field, with its north pole pointing towards the geographical north, the number of neutral points around the magnet is

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.

### #9. In big showrooms and departmental stores, the vigilance mirror used is a

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.

### #10. The process of charging a conductor by bringing it near another charged conductor, without making any contact, is called

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.

### #11. The process of separating different dissolved constituents of a mixture by their adsorption on an appropriate material is called

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.

### #12. The alphabet X in X-ray stands for ______ ray.

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.

### #13. Water gas is a mixture of

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.”

### #14. Water is an excellent cooling agent because of its

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.

### #15. Colloids have particle size range between

Ans: (A)

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

### #16. The purest form of the amorphous carbon is

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.

### #17. The modern atomic symbols are based on the method proposed by

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.

### #18. Which of the following is not a characteristic of a chemical change?

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

### #19. Substances that readily absord moisture from other substances without chemically reacting with them are called

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.

### #20. Inhalation of air polluted with carbon monoxide (CO) is dangerous because

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.

### #21. Clones of animals are being produced through the practice of

Ans: (C)

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

### #22. Which of the following is found both in the cells of a mango plant and a monkey?

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.

### #23. Which of the following connects a muscle to a bone?

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.

### #24. The part of the flower that gives rise to a fruit is

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.

### #25. Which of the following is an example of the binomial scientific name?

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.

### #26. The most common carrier of communicable diseases is

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.

### #27. Which of the following is the best source of vitamin A?

Ans: (C)

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

### #28. The type of joint found at shoulder is also found at

Ans: (B)

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

### #29. Which one of the following organs most actively functions to regulate our body temperature?

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.

### #30. Yeast is used in the production of

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)

### #32. What is 'Central Vista Redevelopment project'?

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.

### #33. 'Good Governance Day' which commemorates the birth anniversary of India's former Prime Minister Atal Bihari Vajpayee, is celebrated every year on

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.

### #34. The highest railway bridge in the world is built over which of the following rivers?

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.

### #35. Who among the following launched 'One Nation One Ration Card' scheme under the National Food Security Act?

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.

### #36. 'Mission indradhanush' launched in 2014 and 'Intensified Mission' Indradhanush 3.0' scheme are related to

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.

### #37. In which state has the Archaeological survey of India (ASI) unearthed 900-year-old Buddhist monastery?

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.

### #38. Which has become the only city in India in 2020 to be recognised as a 'Tree city of the World' in recognition of the city's commitment to grow and maintain urban forest,?

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).

### #39. According to the World Air Quality uality Report, 2020, which of the following capitals has been found as the most polluted capital?

Ans: (D)

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

### #40. The Rajiv Gandhi Khel Ratna Award has been renamed after which of the following sports persons?

Ans: (C)

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

### #41. Which country won the highest number of Gold Medals in Tokyo Olympics, 2020 held in 2021?

Ans: (A)

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

### #42. under the Mars Mission, which of the following Arab countries has launched its spacecraft, (named Hope/Al-Amal) to Mars in the year 2020?

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.

### #43. Which is the first country in the world to provide free sanitary products to all women in their country?

Ans: (D)

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

### #44. The Quadrilateral Security Dialogue (QSD) also known as QUAD is a group of which of the following countries?

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.

### #45. Which of the following decides the Nobel peace prize?

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).

### #46. Ngozi Okonjo-Iweala became the first women of the world and the first African woman to be appointed as the Head of the World Trade Organization (WTO). She hails from which country?

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.

### #47. Taliban has changed the name of Afghanistan. What is the new name of Afghanistan?

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.

### #48. Who has won the US, Open Men's Single Grand Slam, 2021 by defeating Serbian World No. 1?

Ans: (A)

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

### #49. Which pharmaceutical company/biotechnology company manufacturers Covishield vaccine in India?

Ans: (C)

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

### #50. What is CPEC Project?

Ans: (C)

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

### #51. India's first 'Kisan Rail' started its journey on 8th August, 2020 between which of the following two stations?

Ans: (B)

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

### #52. Who from Bihar has been conferred the Padma Bhushan award on 26th January, 2021?

Ans: (B)

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

### #53. How many from Bihar were conferred the Padma Shri award in different fields on 26th January, 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.

### #54. Who from Bihar was conferred the Padma Shri Award for great contribution in the field of medicine on 26th January, 2021?

Ans: (D)

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

### #55. Who from Bihar had received the 'Param Vir chakra' for exemplary bravery in 1971 Indo-Pak War?

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.

### #56. Who among the following from Bihar has received the Dadasaheb Phalke award?

Ans: (A)

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

### #57. Which Indian journalist and media personality, a native of Bihar, has received the Magsaysay award for the year 2019?

Ans: (B)

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

### #58. Which poor girl from Bihar is the recipient of the "women's creativity in Rural life Award" conferred by the women's World Summit Foundation for uplifting her community?

Ans: (B)

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

### #59. The Fifth international Dharma-Dhamma conference was organized by India Foundation in collaboration with Nalanda University on 27-28 July, 2019 in which of the following towns/cities?

Ans: (A)

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

### #60. Who among the following from Bihar has been conferred the Bharat Ratna award?

Ans: (A)

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.

### #61. In pre-Gupta times, a large number of lead coins were issued by the

Ans: (A)

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

### #62. The decline of the Mauryan Empire was largely due to the economic consequences of Ashoka's policy. Who believed in this fact?

Ans: (A)

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

### #63. Who was the author of the famous Allahabad prasasti?

Ans: (B)

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.

### #64. Barabudur is the most wonderful Stupa in the world and it's images and sculptures are the finest examples of

Ans: (D)

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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