CIVIL SERVICE MAIN EXAMINATION 2019

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SOLVED PAPER

1. What is ‘Arribada’? 7. Who among the following has been appointed (A) Mass Nesting of Olive Ridley as the Deputy Executive Director of UN-Women (B) Setting up a habitat by Red Panda on May 30, 2019? (C) Colony formation by Penguin (A) Narayani Shastri (D) None of the above (B) Anita Bhatia (C) Ritu Jhingon 2. Which three companies have launched the (D) Lakshmi Puri Ujjwala Sanitary Napkins? (A) Indian Oil, Bharat Petroleum and Hindustan Petroleum 8. Name the Indian who has been felicitated with (B) Bharat Petroleum, ONGC and Indian Oil ’s highest civilian award ‘Order of the (C) Indian Oil, Oil Limited and Hindustan Aztec Eagle’ in 2019? Petroleum (A) Ram Nath Kovind (D) ONGC, Oil India Limited and Bharat Petroleum (B) Pratibha Patil (C) Pranab Mukherjee (D) Sonia Gandhi 3. How many times Sheikh Hasina has been elected as Prime Minister of Bangladesh? (A) Two Times 9. The Elephanta Festival of Art and Culture is (B) Three Times held in which city in India? (C) Four Times (A) New (D) Five Times (B) Thiruvananthapuram (C) Jaipur (D) 4. What was the profession Volodymyr Zelensky before elected as the President of Ukraine? 10. In which city India’s first Tree Ambulance has (A) Singer recently been launched? (B) Comedian (A) Bhopal (C) Doctor (B) Chennai (D) Soldier (C) Ahmedabad (D) Mumbai 5. Where is the shola grassland found in India? (A) Western Ghats 11. Which of the following banks has launched the (B) Sundarbans ‘Bank on Wheels’ service? (C) Andaman-Nicobar (A) State Bank of India (D) Himalayas (B) Axis Bank (C) ICICI bank (D) Indian Overseas Bank 6. Which state government’s Medical & Health Department has received the WHO's ‘World No Tobacco Day Award, 2019’? 12. Which of the following Ministry launched the (A) Rajasthan Artisan Speak? (B) Gujarat (A) Ministry of Culture (C) Chhattisgarh (H) Ministry of Tourism (D) West Bengal (C) Ministry of Textiles (D) Ministry of External Affairs W B C S M ains 2019 | Paper – I V | Solved Paper | 2

13. Where is the “Vivek Smarak” - Swami 19. Who has joined the International Monetary Vivekananda Value Education and Cultural Centre Fund as its chief economist on January 8, 2019? located? (A) Jayanto Ghosh (A) (B) Gita Gopinath (B) West Bengal (C) Raghuram Rajan (C) Karnataka (D) Indira Nooyi (D) Bihar 20. Which country’s army ousted and arrested 14. Which of the Indian Lake possess 20% of president Omar-Al-Bashir on April 11, 2019? India’s sea-grass distribution? (A) Sudan (B) South Sudan (A) Chilka Lake (C) Somalia (D) Egypt (B) Loktak Lake (C) Dal Lake 21. Who has been named as the Wisden Almanack (D) Mansar Lake leading cricketer of the year 2018? (A) Jos Buttler 15. In which of the following institutions, the first (B) Sam Curren time ever in India, voting was held on the campus (C) Virat Kohli of an institution for mentally ill on April 18, 2019? (D) Shakib Al Hasan (A) Spandana Institute of Mental Health (B) Institute of Mental Health, 22. In which country the first ever home delivery (C) Institute of Mental Health, Ayanavaram drone service has been launched by Wing? (D) Institute of Psychiatry, (A) Australia (B) Canada (C) 16. A book containing English translation of the (D) South Korea 100 year old classic Punjabi poem about Jalianwalla Bagh massacre, ‘‘Khooni Vaisakhi” 23. Defence Research and Development has been released in Abu Dhabi. What is the name Organization on April 15, 2019 successfully test of Jalianwalla Bagh survivor who wrote it after fired Nirbhay. What is Nirbhay? witnessing first-hand the events of April 13, 1919? (A) Pilotless aircraft (A) Manmohan Singh (B) Radar (B) Khushwant Singh (C) Missile launcher vessel (C) Lal Singh Dil (D) Subsonic cruise missile (D) Nanak Singh 24. The World Health Organization has raised 17. In which country India has rebuilt Kundeling alarm over a 300 per cent increase in the case of Monastery? which disease globally in the first quarter of 2019 (A) Thailand compared with last year? (B) (A) Cancer (C) Nepal (B) Polio Measles (D) Bhutan (C) Diabetes (D) AIDS 18. Who has become the first Indian woman scientist to have been selected as a Fellow of the 25. Which of the following two countries named Royal Society in the 359 year history of the the first and second best performing country after prestigious scientific academy? the Climate Change Performance Index, 2019? (A) Mangala Narlikar (A) Norway and Iceland (B) Gagandeep Kang (B) Sweden and Bhutan (C) Nandini Harinath (C) Bhutan and Finland (D) Aditi Pant (D) Sweden and Morocco W B C S M ains 2019 | Paper – I V | Solved Paper | 3

26. The 2020 Summer Olympic will be held in 35. How many official languages are there in (A) Tokyo UNO? (B) (A) 3 (B) 4 (C) Athens (C) 5 (D) 6 (D) Atlanta 34. How many operational commands are there in 27. Who authored the book “Identity and Indian Army? Violence: The Illusion of Destiny”? (A) 5 (B) 6 (A) L. K. Advani (C) 7 (D) 8 (B) A. P. J. Abdul Kalam (C) Amartya Sen 36. Shura-e-Milli is the Parliament of which (D) Orphan Pamuk country? (A) Jordan 28. “Playing it my way” is the autobiography of (B) Iran (A) Brian Lara (C) Afghanistan (B) Virat Kohli (D) Israel (C) Sachin Tendulkar (D) Steve Waugh 37. Which one of the following is the highest military decoration of Germany? 29. Who said, “Man is by nature a political (A) Victory Medal animal”? (B) Iron Cross (A) Socrates (C) Military Cross (B) Aristotle (D) Croiv de Guerra (C) Plato (D) Karl Marx 38. Who is the most decorated Olympian? 30. What is the National aquatic animal of India? (A) Usain Bolt (A) River Dolphin (B) Michael Phelps (B) Green Sea Turtle (C) Larisa Latynina (C) Seahorse (D) Carl Lewis (D) Dugong 39. The border line between Pakistan and 31. Which is the capital of Bulgaria? Afghanistan is known as (A) Sofia (A) McMohan Line (B) Bangui (B) Radcliffe Line (C) Rabat (C) Durand Line (D) Lome (D) Maginot Line

32. What is the currency of Myanmar? 40. The Head-quarters of ILO is located in (A) Kyat (A) Geneva (B) Ringgit (B) The Hague (C) Peso (C) New York (D) Baht (D) Rome

33. What is the currency of Italy? 41. Deuce: Booster; Spikers; Service; Love are (A) Lira related to (B) Euro (A) Badminton (C) Dollar (B) Volleyball (D) Pound (C) Baseball (D) Billiards W B C S M ains 2019 | Paper – I V | Solved Paper | 4

42. Rohinton Baria Trophy is related to (D) Archery (A) Inter School Hockey Competition (B) Inter State Polo Championship 50. What does ‘CSIR’ stand for? (C) Inter-University Cricket Competition (A) Council of Scientific and Industrial Research (D) Under 19 Table Tennis Competition (B) Center for Science and Industrial Research (C) Center for Share and Investment Ratio 43. India House is situated in (D) Council for Scientific and Informational (A) Delhi Research (B) Singapore (C) Rangoon 51. The temperature of water for measuring BOD (D) London should he maintained at (A) 20°C 44. Which of the following is known as the city of (B) 30°C eternal spring? (C) 35°C (A) Rome (D) 40°C (B) Quito (C) Lhasa 52. Silent Valley became a national park in the (D) Venice year (A) 1980 45. Black holes were predicted by (B) 1984 (A) Copernicus (C) 1988 (B) Einstein (D) 1990 (C) Rutherford (D) Satyen Bose 53. The pH for drinking water should be between (A) 5-6 46. Who won the Man Booker Prize 2019? (B) 6-6.5 (A) Anna Burns (C) 6.5 -7.5 (B) Daisy Johnson (D) 8-9 (C) Rachel Kushner (D) Richard Powers 54. The following virus is water borne: (A) Hepatitis A 47. Who won 68th edition of Pageant? (B) Hepatitis B (A) Karen Ibasco (C) Hepatitis C (B) Manushi Chhillar (D) Hepatitis E (C) (D) 55. The following name is associated with rain water harvesting: 48. Along with Nanaji Deshmukh and Bhupen (A) Rajendra Singh Hazarika, who was the recipient of Bharat Ratna (B) Baba Amte of 2019? (C) S.C. Nair (A) Atal Bihari Vajpayee (D) Medha Patkar (B) Manmohan Singh (C) Pranab Mukherjee 56. The maximum width of tropopause is (D) None of the above (A) 10 Km (B) 15 Km (C) 20 Km (D) 25 Km 49. Rajiv Gandhi Khel Ratna, 2018 was awarded to Mirabai Chanu for which discipline? 57. The Thermosphere starts from Earth’s surface (A) Wrestling at a distance of (B) Weightlifting (A) 80 Km (B) 85 Km (C) Boxing (C) 100 Km (D) 125 Km W B C S M ains 2019 | Paper – I V | Solved Paper | 5

58. Which of the following may be used to 62. The operation ‘Surya Hope’ is related to mitigate oil spill? (A) Uttarakhand flood (A) Bacillus (B) Kerala flood (B) Pseudomonas (C) Kashmir flood (C) E. coli (D) Assam flood (D) Nitrobacter 63. The Disaster Management Act was enacted in Explanation: Genetically engineered called Pseudomonas putida is used in bioremediation (A) 2000 of oil spills. It is also known as 'Chakarborty's (B) 2003 superbug. Ananda Mohan Chakrabarty, an Indian- (C) 2005 born scientist working at GE in the 1960's and 1970's, (D) 2010 developed the multi-plasmid hydrocarbon- degrading Pseudomonas and patented it. This was 64. The following is not a macronutrient: the first time anyone had patented a living organism. (A) Mg (B) Ca 59. The following gas may be involved in stone (C) Fe cancer: (D) K

(A) N2

(B) SO2 65. The fresh water percentage of Earth is

(C) CO2 (A) 1%

(D) H2S (B) 2.5% (C) 5% Explanation: Stone cancer is an environmental issue, (D) 10% it refers to the corrosion and yellowing of buildings and statues made up of marbles by action of sulphuric acid and nitric acid. The SO2 and NOx present in 66. The opening match of ICC World Cup. 2019 pollution get deposited on these buildings. These between and was held in oxides absorb moisture from the air and get (A) Lord’s converted into respective acids and cause corrosion. (B) Oval Also when it rains the oxides of sulphur and nitrogen (C) Trent Bridge present in air react with it to form acid rain. Taj Mahal (D) Cardiff is losing its white shine because of marble cancer.

This phenomenon is also known as Marble Cancer. 67. When did West Bengal become a state?

(A) August 15, 1947 60. DDT does not contain (B) August 15, 1948 (A) C (C) November 26, 1949 (B) H (D) January 26, 1950 (C) P (D) Cl 68. Where is Vikram Sarabhai Space Centre? (A) Bengaluru 61. Loss of water is maximum from (B) Sriharikota (A) Leaf surface (C) Baleswar (B) Soil surface (D) Thiruvananthapuram (C) Root (D) Stem surface 69. Indira Gandhi Centre for Atomic Research is located in Explanation: Evapotranspiration from the forest greatly exceeds evapotranspiration (by 50-150 (A) Kolkata mm) from the treeless areas: studies by G. N. (B) Kalpakkam Vysotsky; V. I. Rutkovsky; I. S. Vasiliev and others. (C) Mumbai 90% of transpiration occurs through leaf surface. (D) Hyderabad

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70. The black foot disease primarily occurs due to (C) Sir George Ranking toxicity of (D) Sir Harold Derbyshire (A) Fluoride (B) Cadmium 78. In which year Chandannagar was integrated (C) Arsenic into West Bengal? (D) Lead (A) 1947 (B) 1948 71. Fluoride in the environment primarily comes (C) 1950 from (D) 1954 (A) Topaz (B) Apatite 79. In which year the Bengal famine happened? (C) Fluorite (A) 1876 (D) Phosphorite (B) 1936 (C) 1943 72. The following is a sedentary cycle: (D) 1976 (A) P cycle

(B) N2 cycle 80. Who was the first Sultan of Bengal? Explanation: It should (C) C cycle (A) Saifuddin Hamza Shah be sedimentary cycle. (D) O2 cycle (B) Sikandar Shah (C) Shamsuddin Ilyas Shah 73. The following organism is an endosymbiont: (D) Alibardi Khan (A) Anabaena Explanation: (B) Azotobacter Endosymbiont of (C) Clostridium 81. In which year the Princely State of Cooch Behar Azolla. (D) Nitrobacter merged with West Bengal? (A) 1947 74. Habitat resulting from lava flow is an example (B) 1948 of (C) 1949 (A) Primary succession (D) 1950 (B) Secondary succession (C) Autogenic succession 82. Which one is the first newspaper published in (D) Allogenic succession Bengali language? (A) Digdarshan 75. Which is the first plant grown in the moon? (B) Samachar Darpan (A) Cotton (C) Tattobodhini (B) Potatoes (D) Ananda Bazar (C) Arabidopsis (D) Canola 83. In which year Howrah Bridge was open for public? 76. What is the total number of seats in West (A) 1941 Bengal Legislative Assembly? (B) 1942 (A) 295 (C) 1943 (B) 308 (D) 1944 (C) 435 (D) 543 84. Binapani Devi was the matriarch of which community? 77. Who was the first Chief Justice of the Calcutta (A) Mech High Court? (B) Bauris (A) Sir Rechard Couch (C) Rabha (B) Sir Barnes Peacock (D) Matua W B C S M ains 2019 | Paper – I V | Solved Paper | 7

85. On which river has the central government 93. The Poona pact was an agreement between approved ‘Keery Hydro Power Project’? (A) Gandhi and Ambedkar (A) Mahananda (B) Chenab (B) Nehru and Ambedkar (C) Teesta (D) Jhelum (C) Nehru and Gandhi (D) Ambedkar and Maiviya 86. Which city bagged award for the cleanest city for third straight year in Swachh Survekshan, 94. In which year Swami Vivekananda established 2019? Ramakrishna Mission? (A) Pune (B) Amaravati (A) 1892 (B) 1897 (C) Indore (D) Chandigarh (C) 1902 (D) 1904

87. India’s first Rajdhani Express turned 50 on 95. The Constituent Assembly of India has started March 3, 2019. Which was the route of first functioning from Rajdhani Express? (A) November 26, 1946 (A) Bombay- (B) December 9, 1946 (B) Howrah-New Delhi (C) January 26, 1947 (C) Madras-New Delhi (D) April 21, 1947 (D) Amritsar-New Delhi 96. What is the time difference between India and 88. Which sports has been included in 2022 Asian London? Games? (A) 4 Hours 30 Minutes (A) Cricket (B) 6 Hours (B) Football (C) 8 Hours 30 Minutes (C) Paragliding (D) 12 Hours (D) Pencak Silat 97. Which one is the world's wettest continent? 89. Who named cyclone ‘Foni’? (A) Asia (A) India (B) Africa (B) Bangladesh (C) South America (C) Sri Lanka (D) Europe (D) Myanmar 98. Who can declare financial emergency in India? 90. In which year Satyajit Ray’s first film Pather (A) Governor of RBI Panchali was released? (B) Prime Minister (A) 1951 (B) 1955 (C) President (C) 1958 (D) I960 (D) Finance Minister

91. Which Viceroy of India suggested the 99. Which one is the India’s multi-purpose river construction of Victoria Memorial in Kolkata? valley? (A) Lord Curzon (A) Bhakra Nangal (B) Lord Dalhousie (B) Damodar Valley (C) Lord Ripon (C) Tungabhadra (D) Lord Hardinge (D) Nagarjuna Sagar

92. Which one is the State Animal of West Bengal? 100. Who scripted Gandhiji’s favourite song (A) Royal Bengal Tiger “Vaishnav Jan to Tene Kahiye...”? (B) Spotted Deer (A) Rabindranath Tagore (C) Fishing Cat (B) Premanand (D) One Horned Rhinoceros (C) Meera Bai (D) Chunilal W B C S M ains 2019 | Paper – I V | Solved Paper | 8

101. The emission spectrum of hydrogen 105. In which of the following phenomena, the discovered first and the region of the heat waves travel along straight lines with the electromagnetic spectrum in which it belongs, speed of light? respectively are (A) Thermal conduction (A) Lyman, ultraviolet (B) Forced convection (B) Lyman, visible (C) Natural convection (C) Balmer, ultraviolet (D) Thermal radiation (D) Balmer, visible 106. If the band gap between valence band and 102. An electric bulb marked as 50 W-200 V is conduction band in a material is 5.0 eV, then the connected across a 100 V supply. The present material is power of the bulb is (A) Semiconductor (A) 37.5 W (B) Good conductor (B) 25 W (C) Super conductor (C) 12.5 W (D) Insulator (D) 10 W 107. During the emission of a positron from a Solution:- nucleus, the mass number of the daughter element remains the same but the atomic number (A) is decreased by 1 unit (B) is decreased by 2 units (C) is increased by 1 unit (D) remains unchanged

103. Water is flowing through a very narrow tube. Explanation: The velocity of water below which the flow remains a streamline flow is known as (A) Relative velocity 108. For the radioactive nuclei that undergo either (B) Terminal velocity ⍺ or β decay, which one of the following cannot (C) Critical velocity occur? (D) Particle velocity (A) Isobar of original nucleus is produced. (B) Isotope of the original nucleus is produced. 104. A bullet on penetrating 30 cm into its target (C) Nuclei with higher atomic number than that of losesit’s velocity by 50%.What additional the original nucleus is produced. distance will it penetrate into the target before it (D) Nuclei with lower atomic number than that of comes to rest? the original nucleus produced (A) 30 cm (B) 20 cm (C) 10 cm 109. Which one of the following is wrong about (D) 5 cm molecularity of a reaction? Solution:- (A) It may be whole number or fraction (B) It is calculated from reaction mechanism. (C) It is the number of molecules of the reactants taking part in a single step chemical reaction. (D) It is always equal to the order of elementary reaction.

Explanation: Molecularity of a reaction can never be fractional. It is always a whole number.

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110. Which of the following pairs, the two physical 116. A body is floating in a liquid at rest. Incorrect quantities have different dimensions? statement about situation options: (A) Planck's Constant and angular momentum. (A) Buoyancy is equal to the weight of the body. (B) Impulse and Linear momentum (B) Weight of liquid displaced by the body is equal (C) Moment of inertia and moment of a force. to buoyancy. (D) Energy and Torque (C) Force applied by body on liquid is buoyancy downward. 111. Which of the following vitamin is water (D) Weight will be greater than buoyancy. soluble as well as an antioxidant? (A) Vitamin - B1 117. WAN hardware includes (B) Vitamin - A (A) Multiplexors and routers (C) Vitamin - D (B) EDF (D) Vitamin - C (C) Bridger and modems (D) Removable disc Explanation: Water-Soluble - B & C Antioxidant - C & E 118. Which one is the first search engine in internet? 112. ‘Adaptation’ of eye in dark due to (A) Google (B) Archie (A) Depletion of vision pigment in rods (C) AltaVista (D) WAIS (B) Depletion of vision pigment in cones (C) Repletion of vision pigment in rods 119. Which one programming language is (D) Repletion of vision pigment in cones exclusively used for artificial intelligence? (A) C (B) Java Explanation: Two types of photoreceptor cells are (O J2EE (D) Prolog present in retina, .i.e., rods and cones. (i) Rods: These cells are active in dark Rhodopsin, a vision 120. A dual layer Blu-ray disc can store data upto pigment is present in rods. (ii) Cones: These cells (A) 20 GB are active in strong light. lodopsin a pigment is (B) 30 GB present in cones. (C) 40 GB (D) 50 GB 113. A man of blood group-A marries a woman of blood group-AB, which type of progeny would 121. Protein folding is a process in which a indicate that man is heterozygous? polypeptide folds into (A) O (A) 2-D structure (B) B (B) Globular form (C) A (C) 3-D structure (D) AB (D) Linear form

114. The permanent decrease in population 122. Who described the structure of DNA double number occurs due to helix? (A) Migration (A) Peter Mitchell (B) Natality (B) Andre Jagendorf (C) Emigration (C) Ernest Uribe (D) Mortality (D) Watson and Crick

115. Aspirin is a/an Explanation: DNA double helix was first (A) Antibiotic described in 1953 by Watson and Crick using X- (B) Antiseptic ray diffraction. DNA fibres were obtained by (C) Antipyretic Franklin and Wilkins. Watson, Crick, and Wilkins (D) None of the above were awarded a Nobel Prize in 1962. W B C S M ains 2019 | Paper – I V | Solved Paper | 10

123. Which of these are used to measure optical 131. The temporary hardness of water is caused by activity? (A) Oxides (A) Polarimeter (B) Bicarbonates (B) Planimeter (C) Chlorides (C) Psychrometer (D) Sulphates (D) Photometer 132. The disinfection of drinking water by 124. What is the wavelength of Super High municipalities is mostly by Frequency (SHF) especially used in radar and (A) Chlorination satellite communication? (B) Bromination (A) 1 m - 10 m (C) Boiling (B) 1 cm - 10 cm (D) UV radiation (C) 10 cm - 1 m (D) 0.1 cm - 1 cm 133. The ideal temperature for composting is 125. The Device used by Banks to automatically (A) 30°C-40°C read those special numbers on the bottom of the (B) 40°C-50°C cheques is (C) 50°C- 60°C (A) MICR (D) 60°C- 70°C (B) OMR (C) UPC 134. The following waste comes under red (D) UDIC category: (A) Metal 126. Roof top water harvesting is highest in (B) Drug (A) (C) Oil waste (B) (D) Food waste (C) Ghana (D) India 135. The unit of radioactivity is (A) Co (B) Ci 127. The noise level during plane take off is around (C) Cr (D) Cq (A) 100 dB (B) 150 dB (C) 200 dB (D) 250 dB 136. The activated sludge treatment is carried out by 128. The Biodiversity Act was passed in (A) High temperature (A) 2000 (B) 2002 (B) Acidification (C) 2004 (D) 2008 (C) Microbes (D) Moisture

129. Bengal Smoke Nuisance Act came up for the 137. The country where paper recycling was first time in initiated in the world is (A) 1900 (B) 1905 (A) UK (C) 1950 (D) 1978 (B) USA (C) Germany 130. The green bench in Kolkata High Court was (D) France established in (A) 1990 138. The electric arc furnace is used for recycling (B) 1996 of (C) 1997 (A) Cu (B) Zn (D) 1998 (C) Fe (D) Cr

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139. CITES became effective from the year 145. In radioactive decay process the negatively (A) 1970 charged emitted β particles are (B) 1975 (A) The electrons present inside the nucleus. (C) 1980 (B) The electrons produced as a result of the decay (D) 1985 of neutrons inside the Nucleus. (C) The electrons produced as a result of collisions 140. Mulching prevents the loss of between atoms. (A) Microbes (D) None of the above (B) Moisture (C) Mineral 146. Indian Board of Wildlife was established in (D) Organic matter (A) 1932 (B) 1952 (C) 1962 (D) 1972

147. Bhagabatpur project is for breeding 141. SiO2 is reacted with Sodium Carbonate. What is the gas liberated? (A) Marsh Crocodile (B) Tigers (A) CO2 (B) CO (C) Black buck (D) Dholes (C) O2

(D) O3 148. Maximum Energy consumption in Asia is by 142. The potential energy of a molecule on the (A) India (B) China surface of a liquid compared to one inside the (C) Japan (D) Pakistan liquid is (A) Zero 149. The golden rice contains (B) Lesser (A) Vitamin A (C) Equal (B) Vitamin C (D) Greater (C) Vitamin E (D) Vitamin D

푣 143. For a metallic wire, the ratio [푣= applied 150. The Bt cotton is a transgenic crop with gene 푖 transfer from potential difference and 푖= current flowing] is (A) Virus (A) Independent of temperature. (B) Bacteria (B) Increases as the temperature rises. (C) Fungi (C) Decreases as the temperature rises. (D) Algae (D) Increases or decreases as the temperature rises depending upon the metal. 151. Which of them contains all the information

required to fold the polypeptide chain in its 3-D

juncture? 144. In gamma ray emission from a nucleus (A) DNA sequences (A) only proton number changes. (B) RNA (B) only neutron number changes. (C) Histone protein (C) there is no change in proton number and (D) Amino acid sequences neutron number.

(D) Both the proton number and the neutron Explanation: The classic principle of protein number change. folding is that all the information required for a Explanation: Gamma radiation takes place as a protein to adopt the correct three-dimensional result of excitation or de-excitation of nuclei. It conformation is provided by its amino acid holds no charge or mass. sequence: Anfinsen’s Dogma

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152. Name the RNA molecules which is used to 159. X-ray films are a source of which of the carry genetic information copied from DNA? following gas?

(A) tRNA (A) SO2

(B) mRNA (B) CO2

(C) rRNA (C) NO2

(D) snRNA (D) SO3

153. Name the disease caused by the deficiency of 160. What property of Earth protects us from Niacin. harmful radiation from the Sun? (A) Pellagra (A) Trees (B) Rickets (B) Atmosphere (C) Scurvy (C) 70% water (D) Pernicious anaemia (D) Earth's motion around the Sun

161. Which of the following vitamins serve as a 154. What is the primary standard level for carbon hormone precursor? monoxide for assuring air quality? (A) Vitamin-C (A) 10 ppm (B) Vitamin- A (B) 90 ppm (C) Vitamin - K (C) 1 ppm (D) Vitamin-D (D) 9 ppm 162. Which of the following is not a component of 155. Which is the most abundant hydrocarbon in the nucleus? the atmosphere? (A) Chromosome (A) Methane (B) Nucleolus (B) Carbonyl sulphide (C) Cytoplasm (C) Ethane (D) Nuclear envelopes (D) None of the above 163. The value of the compressibility of an ideal fluid is 156. The solar sunspot cycle is (A) zero (A) 3 years (B) unity (B) 7 years (C) infinity (C) 11 years (D) more than that of a real fluid (D) 14 years

164. In electromagnetic theory, continuity 157. Which of the following is the largest sink for equation relates carbon dioxide gas? (A) Volume conservation (A) Forests (B) Mass conservation (B) Oceans (C) Charge conservation (C) Ice sheets (D) Energy conservation (D) Grasslands

158. Which of the following is a liquid form of 165. Which is the cheapest device for measuring aerosol? flow/discharge rate? (A) Fume (A) Venturi Meter (B) Dust (B) Pitot Tube (C) Mist (C) Orificemeter (D) Smoke (D) None of the above W B C S M ains 2019 | Paper – I V | Solved Paper | 13

166. What is the main energy generation process 173. Formation of stars begin from the following in the Sun? two gases: (A) Nuclear fission (A) Hydrogen and Nitrogen (H) Nuclear radioactive decay (B) Nitrogen and Oxygen (C) Gravitational energy (C) Oxygen and Hydrogen (D) Nuclear fusion (D) Hydrogen and Helium

174. Below, which of the following pH in rain 167. What is the shape of Earth’s orbit? regarded as ‘acid rain’? (A) Ellipse with high eccentricity (A) 7 (B) Ellipse with low eccentricity (B) 7.3 (C) Circle (C) 5.6 (D) None of the above (D) 6

168. Data transmitted for a given amount of time 175. Which of the following pollutant is the major is called contributor to photochemical smog? (A) Noise (A) Peroxy nitrates (B) Power (B) Hydroperoxides (C) Frequency (C) Nitrogen dioxide (D) Bandwidth (D) Ozone

169. In TV transmission, picture signal is 176. What is Incinerator? ______modulated. (A) Furnace used for burning solid waste (A) DSB-SC (B) Furnace used for treating liquid waste (B) VSB (C) Both A & B (C) SSB-SC (D) None of the above (D) Pulse 177. What is Plankton? (A) Large plants in water. 170. Which is the most abundant greenhouse gas (B) Microscopic floating organisms Plants and in the atmosphere? animals. (A) Carbon dioxide (C) Bottom dwelling aquatic organisms (B) Water vapour (D) None of the above (C) Methane (D) Nitrogen 178. Biotic environment includes 171. India’s navigational satellite system is known (A) Consumers as (B) Decomposers (A) GPS (C) Producers (B) GLONASS (D) All of the above (C) BeiDou (D) IRNSS 179. A genetically engineered form of brinjal known as the Bt-brinjal, has been developed. The 172. Asteroid belt is situated between the orbits of objective of this is (A) Mercury and Venus (A) to improve its taste and nutritive qualities. (B) Mars and Jupiter (B) to make it pest-resistant. (C) Jupiter and Saturn (C) to make it drought-resistant. (D) Uranus and Neptune (D) to make its shelf-life longer. W B C S M ains 2019 | Paper – I V | Solved Paper | 14

180. The function of heavy water in a nuclear 187. Which of the following electromagnetic reactor is to waves have the smallest wavelength? (A) cool down the reactor. (A) Infrared rays (B) stop the nuclear reaction. (B) UV rays (C) slow down the speed of neutrons. (C) X-rays (D) increase the speed of neutrons. (D) X-rays

181. The general molecular formula for 188. In which form does the food transported in disaccharide is plants?

(A) C10H20O10 (A) Sucrose

(B) C12H22O11 (B) Fructose

(C) C12H20O10 (C) Glucose

(D) C12H22O10 (D) Lactose

182. Proteins are composed of 189. In plants, water supply is due to (A) Vitamins (A) Osmosis (B) Carbohydrates (B) Imbibition (C) α-amino acids (C) Guttation (D) Mineral salts (D) Adhesion force

183. An ecosystem consists of 190. Indusium is found in (A) Population. (A) Algae (B) A biotic community. (B) Moss (C) A population and its non-living elements. (C) Ferns (D) A biotic community and its non-living (D) Cycas elements. 191. Which is correctly matched? (A) Apiculture - Honey bee 184. Decomposers which specifically act on the (B) Pisciculture - Silk moth faecal matter of other organisms are called (C) Sericulture - Fish (A) Coprophagic (D) Aquaculture - Mosquito (B) Heterophagic

(C) Allophagic 192. In blood, CO2 is transported majorly as

(D) Paraphagic (A) CO2 as such (B) Sodium Carbonate (C) Bicarbonate 185. Major cause of Ozone depletion is due to (D) Carboxyhemoglobin which chemical? (A) Chloro Fluoro Carbons 193. Kupffer cells are present in (B) Polyphenols (A) Pancreas (C) Dioxins (B) Liver (D) Rayon (C) Thyroid (D) Small intestine 186. Which of the following configuration corresponds to element of highest ionisation 194. The vitamin which is essential for blood energy? clotting is (A) 1s2, 2s1 (A) Vitamin - A (B) 1s2, 2s2, 2p3 (B) Vitamin - B (C) 1s2, 2s2, 2p2 (C) Vitamin - C (D) 1s2, 2s2, 2p6, 3s1 (D) Vitamin - K W B C S M ains 2019 | Paper – I V | Solved Paper | 15

195. Which of the following is not vestigial in man? (A) Tail vertebrae (B) Nails (C) Nictitating membrane (D) Vermiform appendix

196. Which of the following is the largest gland in an adult man? (A) Thymus (B) Liver (C) Thyroid (D) Pancreas

197. Which is used in alcoholic beverages? (A) Ethanol (B) Methanol (C) Phenol (D) Glycerol

198. The homologue of ethyne is

(A) C2H2

(B) C2H6

(C) C3H4

(D) C3H8

199. Which of the following does not have coordinate bond?

(A) SO2

(B) HNO2

(C) HNO3

(D) H2SO3

200. Oxidation state of Oxygen in F2O is (A) -1 (B) +1 (C) +2 (D) -2

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