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Everyday Science Scientific Applications Competitive Exams

100 questions · General Science

  1. Question 1 of 100

    A transformer works on the principle of

  2. Question 2 of 100

    Vinegar contains

  3. Question 3 of 100

    Which type of mirror is used by dentists and in vehicle headlights to produce a strong beam?

  4. Question 4 of 100

    In a thermos flask, the vacuum between the walls prevents heat transfer by

  5. Question 5 of 100

    The Turing Test was proposed by Alan Turing to evaluate a machine's

  6. Question 6 of 100

    Penicillin was discovered by

  7. Question 7 of 100

    Nanotechnology deals with structures of size about

  8. Question 8 of 100

    A microwave oven mainly heats food by

  9. Question 9 of 100

    Cement is mainly made from

  10. Question 10 of 100

    Household appliances are connected in

  11. Question 11 of 100

    A pressure cooker cooks food faster because

  12. Question 12 of 100

    PakSat-1R is a

  13. Question 13 of 100

    Pakistan's first satellite, Badr-1, was launched in

  14. Question 14 of 100

    A hydrogen fuel cell produces electricity with

  15. Question 15 of 100

    Pakistan's first Nobel laureate in Physics (1979) was

  16. Question 16 of 100

    The SI unit of force is the

  17. Question 17 of 100

    The speed of light in vacuum is about

  18. Question 18 of 100

    Which of the following is a good insulator?

  19. Question 19 of 100

    Rusting of iron requires

  20. Question 20 of 100

    The weight of a body on the Moon is about

  21. Question 21 of 100

    Common salt is chemically

  22. Question 22 of 100

    Myopia (short-sightedness) is corrected using

  23. Question 23 of 100

    Pakistan's first commercial nuclear power plant, KANUPP, is located in

  24. Question 24 of 100

    A solar cell converts

  25. Question 25 of 100

    The chemical formula of water is

  26. Question 26 of 100

    A superconductor has

  27. Question 27 of 100

    The Earth's natural satellite is the

  28. Question 28 of 100

    The transistor was invented in 1947 at

  29. Question 29 of 100

    The inactivated polio vaccine was developed by

  30. Question 30 of 100

    We see lightning before hearing thunder because

  31. Question 31 of 100

    A fuse wire is made of a material with

  32. Question 32 of 100

    The 2019 Nobel Prize in Chemistry was awarded for the development of

  33. Question 33 of 100

    Antacids relieve acidity because they

  34. Question 34 of 100

    SONAR uses

  35. Question 35 of 100

    mRNA vaccines work by

  36. Question 36 of 100

    Graphene is a

  37. Question 37 of 100

    Brass is an alloy of

  38. Question 38 of 100

    Hard water contains dissolved salts of

  39. Question 39 of 100

    CT scans use

  40. Question 40 of 100

    SUPARCO, Pakistan's space agency, was established in

  41. Question 41 of 100

    The half-life of carbon-14 used in radiocarbon dating is about

  42. Question 42 of 100

    The gene-editing tool CRISPR-Cas9 earned the 2020 Nobel Prize in Chemistry for

  43. Question 43 of 100

    A rise in the pitch of an ambulance siren as it approaches is due to the

  44. Question 44 of 100

    The Higgs boson was discovered at CERN in

  45. Question 45 of 100

    A barometer is used to measure

  46. Question 46 of 100

    The Sun is a

  47. Question 47 of 100

    The gas used in most fire extinguishers is

  48. Question 48 of 100

    An ECG records

  49. Question 49 of 100

    PET scans use

  50. Question 50 of 100

    Passengers jerk forward when a moving bus suddenly stops due to

  51. Question 51 of 100

    LASER stands for

  52. Question 52 of 100

    The image formed by a plane mirror is

  53. Question 53 of 100

    The universal blood donor group is

  54. Question 54 of 100

    Chromatography is a technique for

  55. Question 55 of 100

    Baking soda is

  56. Question 56 of 100

    The filament of an electric bulb is made of

  57. Question 57 of 100

    Optical fibres work on the principle of

  58. Question 58 of 100

    The first vaccine (for smallpox) was developed by

  59. Question 59 of 100

    Ordinary glass is made by fusing sand with

  60. Question 60 of 100

    The household supply in Pakistan is approximately

  61. Question 61 of 100

    Which of the following is a good conductor of electricity?

  62. Question 62 of 100

    Heat from the Sun reaches the Earth by

  63. Question 63 of 100

    Soap is made by

  64. Question 64 of 100

    A TV remote control works using

  65. Question 65 of 100

    Doping silicon with phosphorus produces

  66. Question 66 of 100

    Sweating cools the body because

  67. Question 67 of 100

    The freezing point of water is

  68. Question 68 of 100

    The normal human body temperature is about

  69. Question 69 of 100

    The photoelectric effect was explained by

  70. Question 70 of 100

    Wi-Fi networks mainly use

  71. Question 71 of 100

    Which of the following is the most energy-efficient lighting?

  72. Question 72 of 100

    The Heisenberg uncertainty principle states that

  73. Question 73 of 100

    A rainbow is formed due to

  74. Question 74 of 100

    A magnet attracts

  75. Question 75 of 100

    Ships float on water due to

  76. Question 76 of 100

    The SI unit of electric current is the

  77. Question 77 of 100

    Nuclear power plants generate electricity by the

  78. Question 78 of 100

    MRI works mainly using

  79. Question 79 of 100

    Regenerative braking in electric vehicles

  80. Question 80 of 100

    Coating iron with zinc to prevent rusting is

  81. Question 81 of 100

    Aspirin and paracetamol are used as

  82. Question 82 of 100

    PCR is used to

  83. Question 83 of 100

    X-rays were discovered by

  84. Question 84 of 100

    The main component of CNG is

  85. Question 85 of 100

    Ohm's law states that

  86. Question 86 of 100

    The boiling point of water at sea level is

  87. Question 87 of 100

    Plastic bags are made of polyethylene, which is

  88. Question 88 of 100

    The pH of pure water at 25 degrees Celsius is

  89. Question 89 of 100

    The lift on an aircraft wing is explained partly by

  90. Question 90 of 100

    A GPS receiver needs signals from at least

  91. Question 91 of 100

    The instrument used to measure temperature is the

  92. Question 92 of 100

    Which mirror is used as a vehicle's rear-view mirror?

  93. Question 93 of 100

    Gravitational waves were first directly detected in 2015 by

  94. Question 94 of 100

    Steel is an alloy of iron and

  95. Question 95 of 100

    Deficiency of insulin causes

  96. Question 96 of 100

    Sound cannot travel through

  97. Question 97 of 100

    The James Webb Space Telescope mainly observes in

  98. Question 98 of 100

    The most abundant gas in the atmosphere is

  99. Question 99 of 100

    Ultrasound imaging uses sound waves with frequency above

  100. Question 100 of 100

    Bluetooth communicates using

Question 1 / 100

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