WBCS MAIN 2014 P-4 Science-Technology & EVS
SECTION A: SCIENCE & TECHNOLOGY (Questions 1-60)
Topic 1: Physics
1. Newton’s third law gives directly the law of conservation of
A. Momentum
B. Energy
C. Angular Momentum
D. Power
Correct Answer: A. Momentum
6. The reaction that takes place inside the Sun to power it is
A. Fission
B. Fusion
C. Oxidation
D. Decay
Correct Answer: B. Fusion
7. A body, falling freely from rest, covers a distance of 4m in the first second. The acceleration due to gravity at that place is
A. 10.0 m/s²
B. 9.8 m/s²
C. 8.0 m/s²
D. 7.5 m/s²
Correct Answer: C. 8.0 m/s²
11. The wave length of visible light lies between
A. 200–400 nm
B. 400–700 nm
C. 700–1000 nm
D. 1000–2000 nm
Correct Answer: B. 400–700 nm
13. If the Earth-Sun distance is increased by a factor of four, the length of the year will increase approximately by a factor of
A. Two
B. Four
C. Eight
D. Sixteen
Correct Answer: C. Eight
21. The technique of barium X-ray utilizes the following property of barium sulphate
A. It is opaque to X-rays
B. It is radioactive
C. It is transparent to X-rays
D. It is easily absorbed by tissues
Correct Answer: A. It is opaque to X-rays
22. The technique of MRI uses the phenomenon of
A. Nuclear Magnetic Resonance
B. Electron Cyclotron Resonance
C. Optical Resonance
D. Microwave Resonance
Correct Answer: A. Nuclear Magnetic Resonance
25. The acronym CCD stands for
A. charge coupled device
B. control circuit device
C. credit card device
D. configuration control device
Correct Answer: A. charge coupled device
31. Greenhouse gases emit and absorb radiation within the
A. microwave region
B. infrared region
C. visible region
D. ultra violet region
Correct Answer: B. infrared region
32. Microwave ovens heat water in food because
A. water is a polar molecule
B. the heat capacity of water is high
C. water flows easily
D. water molecule is small
Correct Answer: A. water is a polar molecule
36. The half life period of an isotope is 2 hours. After 6 hours the fraction of the initial quantity of the isotope left behind will be
A. 1/6
B. 1/8
C. 1/12
D. 1/16
Correct Answer: B. 1/8
Topic 2: Chemistry
12. Naphthalene has the formula
A. C₆H₆
B. C₁₀H₈
C. C₁₂H₁₀
D. C₁₂H₁₂
Correct Answer: B. C₁₀H₈
15. The following substance is not an oxidizing agent
A. Ozone
B. Chloride
C. Potassium
D. Fluorine
Correct Answer: C. Potassium
20. The most electronegative among the elements sodium, potassium, oxygen and fluorine is
A. sodium
B. potassium
C. oxygen
D. fluorine
Correct Answer: D. fluorine
23. In Bt Cotton, Bt stands for
A. Bacillus thermoglucosidasius
B. Bacillus thuringiensis
C. Bacterium tenericutes
D. Terminator Bacteria
Correct Answer: B. Bacillus thuringiensis
26. The gas that India’s Mars Mission is looking for as evidence of life is
A. oxygen
B. methane
C. carbon dioxide
D. sulphur dioxide
Correct Answer: B. methane
27. A terminator gene in an organism
A. kills the organism
B. switches off metabolism
C. makes the organism sterile
D. terminates all protein pathways
Correct Answer: C. makes the organism sterile
28. A magic bullet is a
A. bullet that kills a person magically
B. drug that selectively targets a disease without other effects
C. guided missile
D. high magnification microscope
Correct Answer: B. drug that selectively targets a disease without other effects
29. One tree which yields biodiesel is
A. jatropha
B. teak
C. rubber
D. sal
Correct Answer: A. jatropha
30. The basic molecule binds with other molecules to form a polymer is called
A. macromolecule
B. monomolecule
C. monomer
D. monolith
Correct Answer: C. monomer
33. The gas used in refrigerators that destroys the ozone layer is
A. ammonia
B. chlorofluorocarbon
C. nitrous oxide
D. methane
Correct Answer: B. chlorofluorocarbon
39. Epoxy resins are used as
A. detergents
B. insecticides
C. adhesives
D. moth repellents
Correct Answer: C. adhesives
86. Which of the following uranium isotopes is mostly used in nuclear reactors and nuclear weapons?
A. Uranium – 232
B. Uranium – 234
C. Uranium – 235
D. Uranium – 238
Correct Answer: C. Uranium – 235
87. MRI stands for
A. Magnetic Resonance Imaging
B. Magnetic Reflection Imaging
C. Machine Readable Imaging
D. Mechanical Reading Instrument
Correct Answer: A. Magnetic Resonance Imaging
Topic 3: Biology
2. In human beings, the number of chromosomes in an ordinary cell is
A. 46
B. 48
C. 50
D. 52
Correct Answer: A. 46
5. The two satellites of Mars are
A. Io and Europa
B. Ganymede and Callisto
C. Titan and Charon
D. Phobos and Deimos
Correct Answer: D. Phobos and Deimos
9. The continent where modern man originated is
A. Asia
B. Europe
C. South America
D. Africa
Correct Answer: D. Africa
10. Islets of Langerhans are responsible for the secretion of
A. testosterone
B. oestrogens
C. insulin
D. progesterone
Correct Answer: C. insulin
16. The blood cells that defend the body against infections are
A. White blood cells
B. red blood cells
C. platelets
D. erythrocytes
Correct Answer: A. White blood cells
17. The following is an example of a marsupial
A. Whale
B. Bat
C. Mole
D. Kangaroo
Correct Answer: D. Kangaroo
62. The discovery of jumping genes’ is associated with the name of
A. Sir Jagdish Chandra Bose
B. Sir J. B. S. Haldane
C. Dr. Barbara Mcklintock
D. M. S. Swaminathan
Correct Answer: C. Dr. Barbara Mcklintock
64. Albert Einstein was awarded Nobel Prize for his work on
A. General theory of relativity
B. Special theory of relativity
C. Quantum physics
D. Theory of photo electricity
Correct Answer: D. Theory of photo electricity
70. DNA was discovered by
A. Hargovind Khorana
B. James Watson and Francis Crick
C. Francis Crick and Alexander Fleming
D. James Watson and Hargovind Khorana
Correct Answer: B. James Watson and Francis Crick
78. Stephen Hawking is famous for his contributions to
A. Nuclear Physics
B. Quantum theory
C. String theory
D. Astrophysics
Correct Answer: D. Astrophysics
Topic 4: Computer & Information Technology
24. In computers, the storage medium which cannot usually be modified is known as
A. ROM
B. RAM
C. Hard disk
D. Flash drive
Correct Answer: A. ROM
34. The abbreviation ‘http’ stands for
A. HTML Transfer Technology Process
B. Hyperspace Terms and Tech Protocol
C. Hyperspace Techniques Tech Progress
D. Hyper Text Transfer Protocol
Correct Answer: D. Hyper Text Transfer Protocol
35. The following is not a programming language
A. C++
B. JAVA
C. Office Suite
D. Fortran
Correct Answer: C. Office Suite
37. The number of bits in a byte is
A. 2
B. 4
C. 8
D. 16
Correct Answer: C. 8
38. The mode in which a digital adder involving logic gates add data is
A. binary
B. octal
C. decimal
D. hexadecimal
Correct Answer: A. binary
Topic 5: Mathematics
3. In a right angled isosceles triangle, the angles that the two equal sides make with the hypotenuse is
A. 30°
B. 45°
C. 60°
D. 90°
Correct Answer: B. 45°
4. An amount of Rs. 10000 is kept in a bank at 10% annual compound interest. After 2 years, the interest will be
A. Rs. 2000
B. Rs. 2050
C. Rs. 2100
D. Rs. 2200
Correct Answer: C. Rs. 2100
8. ABC and DEF are two similar triangles. If ABC has an area of 100 cm² and if AB : DE = 2:1, then the area of DEF is
A. 25 cm²
B. 50 cm²
C. 200 cm²
D. 400 cm²
Correct Answer: A. 25 cm²
14. The pair of equations ax + by = c and 2ax + 2by = 2c + d, where none of the constants a, b, c, d are zero, has
A. a unique solution
B. no solution
C. two solutions
D. an infinite number of solutions
Correct Answer: B. no solution
18. Given that X > Y and Y ≤ Z, the following statement is true.
A. X > –Y and –Y ≥ –Z
B. –X < Y and –Y ≥ –Z
C. –X < –Y ≤ –Z
D. X < –Y ≥ –Z
Correct Answer: C. –X < –Y ≤ –Z
19. An equation a₀ + a₁x¹ + a₂x² + … + aₙxⁿ = 0 where aₙ ≠ 0 has
A. no root
B. n-1 roots
C. n roots
D. n+1 roots
Correct Answer: C. n roots
SECTION B: ENVIRONMENT & GENERAL KNOWLEDGE (Questions 41-60, 61-100)
Topic 6: Environmental Science
40. The book ‘Silent Spring’ written by Rachel Carson described the detrimental effects of
A. chemical fertilizers
B. deforestation
C. chemical pesticides
D. green house gases
Correct Answer: C. chemical pesticides
41. Which line demarcates the coastal area of Bay of West Bengal?
A. High Tide Line
B. Dampier & Hodge’s line
C. Line of Gangetic Delta
D. Low Tide Line
Correct Answer: B. Dampier & Hodge’s line
42. Name the turtle which rests within West Bengal sea coasts
A. Batagur busca
B. Indian Soft Shelled Gangetic Turtle
C. Indian Flap Shelled Turtle
D. Olive Ridley
Correct Answer: D. Olive Ridley
43. For which mangrove species maximum sweet water influx is required?
A. Keora
B. Sundari
C. Kantra
D. Goran
Correct Answer: B. Sundari
44. Black panther is a
A. Panther
B. Jaguar
C. Tiger
D. Leopard
Correct Answer: D. Leopard
45. Which of the following Tiger Reserves is called Kingfishers’ Paradise?
A. Buxa
B. Corbett
C. Sundarban
D. Kaziranga
Correct Answer: A. Buxa
46. World Environment Day is on
A. 5th September
B. 5th June
C. 15th September
D. 15th June
Correct Answer: B. 5th June
47. Depletion of ozone layer increases the incidence of
A. Blood cancer
B. Lung cancer
C. Skin cancer
D. Brain cancer
Correct Answer: C. Skin cancer
48. How many biodiversity rich centres are there in India?
A. 1
B. 2
C. 12
D. More than 12
Correct Answer: D. More than 12
49. Hot spots are areas with
A. Low diversity
B. High diversity
C. Genetic diversity
D. Ecological diversity
Correct Answer: B. High diversity
50. An estuary is a
A. Body of water
B. coastal body of water
C. semiclosed coastal body of water
D. water body of lake
Correct Answer: C. semiclosed coastal body of water
51. Which gas caused industrial disaster in Bhopal in December, 1984
A. Oleum
B. Fuel
C. MIC
D. Methylamine
Correct Answer: C. MIC
52. Natural source of O₂ in environment is
A. Respiration
B. Transpiration
C. Photosynthesis
D. Combustion
Correct Answer: C. Photosynthesis
53. The depth of water of Wet Land does not exceed
A. 6 meters
B. 10 meters
C. 6 feet
D. 10 feet
Correct Answer: A. 6 meters
54. To control the Global warming we should control the use of
A. fossil fuel
B. Renewable energy
C. Solar energy
D. atomic energy
Correct Answer: A. fossil fuel
55. Blackfoot disease is caused by which pollutant?
A. Mercury
B. Arsenic
C. Copper
D. Iron
Correct Answer: B. Arsenic
56. Which movement is related with Forest protection?
A. Chipko movement
B. Narmada Banchao movement
C. Narmada Dam movement
D. Green Bench
Correct Answer: A. Chipko movement
57. Which bird is highly threatened by PCB?
A. Sparrow
B. Dove
C. Ostrich
D. Penguin
Correct Answer: D. Penguin
58. Minamata disease is caused by which metal contamination?
A. Zinc
B. Lead
C. Copper
D. Mercury
Correct Answer: D. Mercury
59. Contamination of which metal with soil makes it hard for trees to take up water?
A. Aluminium
B. Magnesium
C. Copper
D. Zinc
Correct Answer: A. Aluminium
60. Which ocean is involved with the emergence of the La Nina climate pattern?
A. The global ocean
B. The Pacific ocean
C. The Atlantic ocean
D. The Indian ocean
Correct Answer: B. The Pacific ocean
82. Ramsar convention (1971) is related to protection of
A. national monuments
B. wetlands
C. national parks and forests
D. coral reefs
Correct Answer: B. wetlands
Topic 7: Current Affairs & General Knowledge
61. Netaji Subhas Chandra Bose was born in the year
A. 1897
B. 1898
C. 1902
D. None of the above
Correct Answer: A. 1897
63. Amartya Sen was awarded Nobel Memorial Prize in Economic sciences for his contributions to
A. Growth economics
B. Social choice theory
C. Welfare economics
D. Financial economics
Correct Answer: B. Social choice theory
65. The battle of Waterloo took place in the year
A. 1812
B. 1815
C. 1820
D. 1821
Correct Answer: B. 1815
66. Sigmund Freud’s name is associated with
A. chemistry
B. psychology
C. physiology
D. painting
Correct Answer: B. psychology
67. The headquarters of the Tibetan Government in exile are located in
A. Darjeeling
B. Dharmashala
C. New Delhi
D. Shimla
Correct Answer: B. Dharmashala
68. The University of Calcutta was established in the year
A. 1857
B. 1865
C. 1885
D. 1898
Correct Answer: A. 1857
69. The art work ‘The Last Supper’ was painted by
A. Salvador Dali
B. Pablo Picasso
C. Nandalal Bose
D. Leonardo da Vinci
Correct Answer: D. Leonardo da Vinci
71. India won its first gold in summer Olympic hockey in
A. 1928 Amsterdam Olympics
B. 1932 Los Angeles Olympics
C. 1936 Berlin Olympics
D. 1948 London Olympics
Correct Answer: A. 1928 Amsterdam Olympics
72. M. S. Subhalakshmi was a noted
A. Painter
B. Educationist
C. Politician
D. Singer
Correct Answer: D. Singer
73. Ferguson college is located in
A. Mumbai
B. Nagpur
C. Pune
D. Delhi
Correct Answer: C. Pune
74. Uber cup is associated with
A. Tennis
B. Badminton
C. Squash
D. Golf
Correct Answer: B. Badminton
75. The European Union Parliament holds its sessions in
A. Brussels and Strassbourg
B. Brussels
C. Strassbourg
D. Strassbourg and Paris
Correct Answer: A. Brussels and Strassbourg
76. The highest literary award in India is
A. Jnanpeeth
B. Bharat Ratna
C. Rabindra Puraskar
D. Sahitya Academy Award
Correct Answer: A. Jnanpeeth
77. Of the following political personalities who was not assassinated?
A. Abraham Lincoln
B. John F. Kennedy
C. Adolf Hitler
D. Olaf Palme
Correct Answer: C. Adolf Hitler
79. The Palk Strait lies between
A. India and Sri Lanka
B. India and Pakistan
C. Sri Lanka and Maldives
D. India and Bangladesh
Correct Answer: A. India and Sri Lanka
80. The Reserve Bank of India was established in the year
A. 1951
B. 1950
C. 1935
D. 1926
Correct Answer: C. 1935
81. Warsaw convention (1929) is related to
A. Expansion of trade and commerce among erstwhile communist states
B. Aviation sector
C. Sports and games
D. Sea transport
Correct Answer: B. Aviation sector
83. Article 280 of the constitution of India deals with
A. Election Commission
B. Planning Commission
C. Finance Commission
D. Comptroller and Auditor General
Correct Answer: C. Finance Commission
84. President’s rule may be promulgated in an Indian state under
A. Article 243
B. Article 298
C. Article 356
D. Article 370
Correct Answer: C. Article 356
85. The first Lok Sabha speaker in free India was
A. S. Radhakrishnan
B. Samar Sen
C. Radhabinod Pal
D. G. V. Mavalankar
Correct Answer: D. G. V. Mavalankar
88. The number of banks nationalized by the Government of India in 1969 was
A. 4
B. 11
C. 14
D. 20
Correct Answer: C. 14
89. The Bamiyan Buddhas were located in
A. Iran
B. Afganistan
C. Nepal
D. Sri Lanka
Correct Answer: B. Afganistan
90. Rumtek Monastery is located in
A. Sikkim
B. Himachal Pradesh
C. Jammu and Kashmir
D. Tibet
Correct Answer: A. Sikkim
91. ‘Deshikottama’ award is conferred by
A. University of Calcutta
B. Visva Bharati University
C. Rabindra Bharati University
D. Benaras Hindu University
Correct Answer: B. Visva Bharati University
92. Jadugoda mine is famous for
A. Silver
B. Zinc
C. Uranium
D. Mica
Correct Answer: C. Uranium
93. Who is brand ambassador of Gujarat Tourism?
A. Sachin Tendulkar
B. Amitabh Bachhan
C. Shah Rukh Khan
D. Narendra Modi
Correct Answer: B. Amitabh Bachhan
94. Which of the following cities is considered as India’s diamond city?
A. Mumbai
B. Surat
C. Jaipur
D. Hyderabad
Correct Answer: B. Surat
95. The venue of the 2014 World Chess Championship Final was
A. Chennai
B. Manila
C. Sochi
D. Oslo
Correct Answer: C. Sochi
96. Fortaleza Declaration and Action Plan was taken during
A. BRICS Summit (2014)
B. G-8 Summit (2012)
C. G-20 Summit (2013)
D. Commonwealth Heads of Government Summit (2014)
Correct Answer: A. BRICS Summit (2014)
97. Association of South East Asian Nations (ASEAN) was formed in
A. 1960
B. 1967
C. 1979
D. 1991
Correct Answer: B. 1967
98. With which sport is Cara Black associated?
A. Shooting
B. Table Tennis
C. Tennis
D. Cricket
Correct Answer: C. Tennis
99. Ashraf Ghani Ahmadzai is a national of
A. Afghanistan
B. Syria
C. Iran
D. Iraq
Correct Answer: A. Afghanistan
100. 28th June, 1914 is important date as on that day
A. The Titanic ship sank
B. The Jallianwala Bagh massacre took place
C. Germany attacked France
D. Archduke Franz Ferdinand of Austria was assassinated
Correct Answer: D. Archduke Franz Ferdinand of Austria was assassinated
SECTION-WISE SUMMARY
| Section | Topics Covered | Question Numbers |
|---|---|---|
| Section A: Science & Technology | Physics, Chemistry, Biology, Computer, Mathematics | 1-40, 62, 64, 70, 78, 86-87 |
| Section B: Environment & General Knowledge | Environmental Science, Current Affairs, General Knowledge | 41-60, 61, 63, 65-69, 71-77, 79-85, 88-100 |