Everyday Science MCQs for FPSC Competitive Exams

Comprehensive MCQs for FPSC exams covering astronomy, physics, chemistry, biology, environmental science, geology, health, and scientific instruments, designed for effective competitive exam preparation.

Topics Discussed

  • Astronomy and Planetary Science: Planets, their orbits, distances from the Sun, rotation speeds, and phenomena like the Big Bang Theory and auroras.

  • Physics: Units of measurement (e.g., coulomb, pascal, joule), optics (lenses, light refraction), mechanics (pressure, force, energy), and nuclear reactions.

  • Chemistry: Elements, alloys, chemical reactions (e.g., oxidation), and substances like dry ice, bauxite, and RDX.

  • Biology and Human Physiology: Vitamin deficiencies, blood components, digestion, genetic disorders, and organ functions.

  • Environmental Science: Atmospheric composition, ozone layer, acid rain, and meteorological phenomena like monsoons and wind speeds.

  • Geology and Earth Science: Rocks, minerals, tectonic plates, volcanoes, and the Earth’s crust composition.

  • Scientific Discoveries and Instruments: Contributions of scientists (e.g., Einstein, Copernicus), and instruments like pyrometers, seismographs, and anemometers.

  • Health and Nutrition: Diseases, nutrient absorption, and the role of vitamins and minerals in the human body.

  • Miscellaneous: Biotechnology, radioactive isotopes, and everyday phenomena like twinkling of stars and sound wave propagation.

MCQs

  1. Which is the outermost planet in the solar system?
    A. Mercury
    B. Pluto
    C. Neptune
    D. Uranus

  2. Severe deficiency of Vitamin D results in?
    A. scurvy
    B. rickets
    C. night blindness
    D. None of these

  3. The SI unit of charge is?
    A. Ampere
    B. Coulomb
    C. Ohm
    D. Volt

  4. Long-sight defect could be corrected by using lens?
    A. concave
    B. Convex
    C. diverging
    D. none of these

  5. Short-sight defect could be corrected by a lens?
    A. concave
    B. Convex
    C. diverging
    D. none of these

  6. Deficiency of Vitamin-A results in?
    A. Night blindness
    B. rickets
    C. scurvy
    D. hair fall

  7. For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will?
    A. also decrease
    B. increase
    C. remains constant
    D. none of these

  8. The lifespan of Red Blood Cells is days?
    A. 60
    B. 120
    C. 180
    D. 240

  9. The density of water is?
    A. 1 g/cm³
    B. 1.5 g/cm³
    C. 2 g/cm³
    D. none of these

  10. Radioactivity was discovered by?
    A. Kelvin
    B. Thomson
    C. Rutherford
    D. Becquerel

  11. A device which converts chemical energy into electrical energy is called?
    A. motor
    B. generator
    C. moving-coil meter
    D. battery

  12. The Sun is a?
    A. Star
    B. Planet
    C. Asteroid
    D. Meteor

  13. The gas used in a refrigerator to cool water is?
    A. Nitrogen
    B. Carbon dioxide
    C. Methane
    D. Tetrafluoroethane

  14. The average adult has a blood volume of about liters?
    A. 4
    B. 5
    C. 6
    D. 7

  15. The most abundant element in the universe is?
    A. Oxygen
    B. Hydrogen
    C. Carbon Dioxide
    D. Silicon

  16. The most abundant element in the Earth’s crust is?
    A. Oxygen
    B. Hydrogen
    C. Carbon Dioxide
    D. Silicon

  17. Each day human body breathes in liters of air?
    A. 5,000 to 10,000
    B. 10,000 to 15,000
    C. 15,000 to 20,000
    D. 20,000 to 25,000

  18. Deficiency of Vitamin-D results in?
    A. night blindness
    B. rickets
    C. scurvy
    D. hair fall

  19. The SI unit of “pressure” is?
    A. pascal
    B. joule
    C. tesla
    D. henry

  20. The most densest substance on the Earth is?
    A. Platinum
    B. Copper
    C. Steel
    D. Osmium

  21. A camera uses a to form an image?
    A. convex lens
    B. concave lens
    C. condenser lens
    D. none of these

  22. Which from the following is NOT a conductor?
    A. Aluminium
    B. Gold
    C. Graphite
    D. All are conductors

  23. CNG stands for?
    A. Converted Natural Gas
    B. Conduced Natural Gas
    C. Conducted Natural Gas
    D. Compressed Natural Gas

  24. Which from the following is true for “Sound”?
    A. Sound cannot travel through a vacuum
    B. Sound cannot travel through gases
    C. Sound cannot travel through liquids
    D. Sound cannot travel through solids

  25. When white light is passed through a prism, it splits into colours?
    A. 5
    B. 6
    C. 7
    D. 8

  26. 1 nanometer = ?
    A. 10⁵ meter
    B. 10⁻⁶ meter
    C. 10⁻⁹ meter
    D. 10¹² meter

  27. Instrument used for measuring very high temperature is?
    A. Pyroscope
    B. Pyrometer
    C. Seismograph
    D. Xylometer

  28. Sound waves are waves?
    A. Transverse
    B. Electromagnetic
    C. Longitudinal
    D. None of these

  29. The lifespan of White Blood Cells is day(s)?
    A. 1-5 days
    B. 3-7 days
    C. 4-8 days
    D. 5-21 days

  30. The fluid part of blood is known as?
    A. plasma
    B. platelets
    C. blood cells
    D. None of these

  31. During winter in cold countries, the is mixed to melt the ice on the icy roads?
    A. Salt
    B. Chlorine
    C. Carbon dioxide
    D. Water

  32. In a very low temperature which from the following will freeze at last?
    A. River water
    B. Canal water
    C. Sea water
    D. Water in a lake

  33. The nearest planet to the Earth is?
    A. Venus
    B. Mercury
    C. Mars
    D. Moon

  34. The planet that moves round the Sun at the highest speed is?
    A. Jupiter
    B. Venus
    C. Mars
    D. Mercury

  35. In general, Comets have orbits?
    A. Elliptical
    B. Highly elliptical
    C. Circular
    D. Parabolic

  36. GPS is an abbreviation for?
    A. Global Poles System
    B. Global PolySiliconium Store
    C. Global Positioning System
    D. Global Position Structure

  37. Oxidation is a chemical reaction involving the?
    A. Gain of Electrons
    B. Loss of Electrons
    C. Gain of Protons
    D. Loss of Protons

  38. At night, Plants intake and release?
    A. Oxygen – Carbon dioxide
    B. Carbon dioxide – Oxygen
    C. Oxygen – Carbon monoxide
    D. Carbon monoxide – Oxygen

  39. Urine is produced in?
    A. Kidneys
    B. Lungs
    C. Large intestine
    D. Liver

  40. The position of an element in the Periodic Table is determined by its number?
    A. Electron
    B. Proton
    C. Neutron
    D. Positron

  41. The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in of sea water?
    A. 1 gram
    B. 10 grams
    C. 1 kg
    D. 10 kg

  42. The planet which is easily visible from the Earth is?
    A. Mercury
    B. Venus
    C. Mars
    D. Jupiter

  43. The Great Spot is on the planet?
    A. Saturn
    B. Venus
    C. Mars
    D. Jupiter

  44. Light year = ?
    A. 9.5×10⁵ km
    B. 9.5×10⁸ km
    C. 9.5×10¹² km
    D. 9.5×10¹⁸ km

  45. The bodyguard of the Earth is that save the Earth from many Comets and Asteroids?
    A. Mars
    B. Saturn
    C. Uranus
    D. Jupiter

  46. The planets visible to us without using a telescope are?
    A. 3
    B. 4
    C. 5
    D. 6

  47. According to Big Bang Theory, the Universe began about billion years ago?
    A. 10-20
    B. 20-30
    C. 30-40
    D. 40-50

  48. Biosensor is used to measure?
    A. Blood glucose level
    B. The body pH value
    C. Amount of hemoglobin
    D. Salinity in Urine

  49. Einstein’s famous equation which states that mass and energy are interchangeable is?
    A. E=mc²
    B. E=cm²
    C. M=ec²
    D. M=ce²

  50. The SI unit of electric current is?
    A. Coulomb
    B. Ampere
    C. Volt
    D. Watt

  51. The principal constituent of the atmosphere of the Earth is?
    A. Oxygen
    B. Carbon
    C. Hydrogen
    D. Nitrogen

  52. What is Dry Ice?
    A. Solid Oxygen
    B. Solid Carbon Dioxide
    C. Solid Hydrogen
    D. Solid Nitrogen

  53. Digestion of food is completed in the?
    A. small intestine
    B. large intestine
    C. stomach
    D. Liver

  54. Carrot is good source of Vitamin?
    A. Vitamin A
    B. Vitamin B
    C. Vitamin C
    D. Vitamin D

  55. For proper formation of teeth, is essential?
    A. iodine
    B. copper
    C. fluorine
    D. iron

  56. Deficiency of causes loss of appetite and poor growth?
    A. zinc
    B. iodine
    C. copper
    D. iron

  57. Meteorology is the study of?
    A. Seasons
    B. Atmosphere
    C. Air and sounds
    D. Winds and clouds

  58. The Carbon Dioxide in the atmosphere, by volume, is?
    A. 0.039%
    B. 3.9%
    C. 13%
    D. 30%

  59. Diamond is an allotropic form of?
    A. Carbon
    B. Hydrogen
    C. Nitrogen
    D. Silicon

  60. The SI unit of Heat is?
    A. Watt
    B. Volt
    C. Joule
    D. Newton

  61. The good sources of Vitamin-A are?
    A. green leafy vegetables
    B. seeds
    C. fresh vegetables and fruits
    D. sea foods

  62. The good sources of Vitamin-B Complex are?
    A. green leafy vegetables
    B. seeds
    C. fresh vegetables and fruits
    D. sea foods

  63. The good sources of Vitamin-C are?
    A. green leafy vegetables
    B. seeds
    C. fresh vegetables and fruits
    D. sea foods

  64. The good sources of iodine are?
    A. green leafy vegetables
    B. seeds
    C. fresh vegetables and fruits
    D. sea foods

  65. The instrument used to measure wind speed is?
    A. Anemometer
    B. Barometer
    C. Hydrometer
    D. Hygrometer

  66. The natural fats and oils are composed of?
    A. Carbon, Hydrogen and Oxygen
    B. Carbon, Hydrogen and Nitrogen
    C. Carbon, Oxygen and Nitrogen
    D. Hydrogen, Oxygen and Nitrogen

  67. The energy value of food is measured in?
    A. Joule
    B. Calories
    C. Tesla
    D. Proteins

  68. Wind energy is the energy?
    A. Potential
    B. Transverse
    C. Kinetic
    D. Mechanical

  69. Who is considered the founder of meteorology?
    A. Aristotle
    B. Plato
    C. Einstein
    D. Newton

  70. Water covers of the Earth’s surface?
    A. 61%
    B. 67%
    C. 71%
    D. 76%

  71. In general, wind speed of 10-13 kph caused?
    A. Minor or no damage
    B. considerable damage
    C. severe damage
    D. extreme damage

  72. Acid rain is mainly caused by emissions of in the atmosphere?
    A. Sulfur Dioxide and Potassium Nitrate
    B. Sulfur and Charcoal
    C. Nitrogen Oxide and Potassium Nitrate
    D. Sulfur Dioxide and Nitrogen Oxide

  73. About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is?
    A. Oxygen
    B. Carbon Dioxide
    C. Silicon
    D. Clay

  74. The fourth state of matter is?
    A. Water
    B. Salts
    C. Vapours
    D. Plasma

  75. The device used to convert Alternate Current into Direct Current is called?
    A. Anemometer
    B. Battery
    C. Galvanometer
    D. Rectifier

  76. In night, when photosynthesis is stopped, plants?
    A. take in Carbon Dioxide
    B. give off Oxygen
    C. give off Carbon Dioxide
    D. None of these

  77. are called the powerhouses of the cell?
    A. Mitochondria
    B. Vesicles
    C. Lungs
    D. Liver

  78. One of the countries through which equator passes is?
    A. Kenya
    B. Malaysia
    C. Malta
    D. Pakistan

  79. Copper can be converted into gold by?
    A. Artificial radioactivity
    B. heating
    C. Electroplating
    D. Chemical reaction

  80. The three elements needed for healthy growth of plants are?
    A. N, P, K
    B. N, C, P
    C. N, K
    D. N, S, P

  81. Clocks, which move with the velocities comparable with the velocity of light, run?
    A. fast
    B. slow
    C. equal to the velocity of light
    D. with zero velocity

  82. Max Planck received the Nobel Prize in Physics in 1918 for his discovery of?
    A. electron
    B. energy quanta
    C. photon
    D. positron

  83. Bronze medal is made up of metals?
    A. copper, nickel
    B. copper, tin
    C. copper, silver
    D. copper, zinc

  84. Addison’s disease is caused by the deficiency of?
    A. Antidiuretic Hormone
    B. Luteinising Hormone
    C. Melanophore stimulating Hormone
    D. Adrenocorticotrophic Hormone

  85. Humming bird belongs to a category called?
    A. Ectotherm
    B. Endotherm
    C. Exotherm
    D. Heterotherm

  86. Radioactive isotope of Uranium used in Nuclear Bomb is?
    A. 92 U 235
    B. 92 U 234
    C. 92 U 233
    D. 92 U 238

  87. Human population growth is greatest in developing countries because?
    A. the birth rate is high in developing countries
    B. the death rate is high in developing countries
    C. much of the population has already reached the child bearing age
    D. most of the world’s population lives in industrialized countries

  88. Which woody raw material is used for the manufacture of paper pulp?
    A. Cotton
    B. Poplar
    C. Bagasse
    D. Rice straw

  89. Rectified spirit contains alcohol about?
    A. 80%
    B. 95%
    C. 70%
    D. 85%

  90. Which of the following elements is not present abundantly in earth’s crust?
    A. Silicon
    B. Radium
    C. Aluminum
    D. Carbon

  91. The famous book Al-Qanun was written by the Muslim scientist?
    A. Jabar bin Hayyan
    B. Zakariya Al-Razi
    C. Abu Ali Sina
    D. Abdul Qasim Majreeti

  92. Basic metals can be converted into gold by?
    A. Heating
    B. Beating
    C. Artificial nuclear radioactivity
    D. Chemical reaction

  93. A light year is a unit of?
    A. Time
    B. Energy
    C. Length
    D. Mass

  94. One of the main function of the earth’s ozone layer is to?
    A. Prevent global warming
    B. Filter out ultraviolet rays
    C. Absorb pollution
    D. All of the above

  95. Person with following blood group are considered to be universal recipient?
    A. A+
    B. B+
    C. AB+
    D. O+

  96. Study of life in outer space is known as?
    A. Endobiology
    B. Exobiology
    C. Enterobiology
    D. Neobiology

  97. The name of the common mineral salt present in sweat is?
    A. Calcium Oxalate
    B. Potassium Sulphate
    C. Sodium Chloride
    D. Iron Sulphate

  98. Sensitive layer of the eye is?
    A. Choroids
    B. Sclerotic
    C. Retina
    D. Cornea

  99. Laughing gas has chemical composition of following two elements?
    A. Nitrogen + Hydrogen
    B. Nitrogen + Carbon
    C. Nitrogen + Oxygen
    D. Oxygen + Carbon

  100. Dr. Abdus Salam of Pakistan was one of the contributors of the unification of?
    A. Electromagnetic force and gravitational force
    B. Electromagnetic force and weak nuclear force
    C. Gravitational force and weak nuclear force
    D. Weak nuclear force and strong nuclear force

  101. Which triplet in DNA codes for valine?
    A. CTT
    B. AGU
    C. CAT
    D. None of these

  102. What is the chance of diabetic baby born to parents both heterogeneous normal?
    A. Zero
    B. 1/4
    C. 1/2
    D. 3/4

  103. Which of the following is not a part of Darwinism?
    A. Over production
    B. Natural selection
    C. Inheritance for acquired characters
    D. Competition for survival

  104. Role of biotechnology in the production of food based on?
    A. Decomposition
    B. Respiration
    C. Digestion
    D. Fermentation

  105. Which form of drug abuse involves most risk of infection with the HIV (AIDS) virus?
    A. Cigarette smoking
    B. Using alcohol
    C. Injection of heroine
    D. Taking too much aspirin

  106. Founder of modern astronomy was?
    A. Archimedes
    B. William Gilbert
    C. Nicolas Copernicus
    D. Michael Faraday

  107. The instrument which measures very high temperature is?
    A. Manometer
    B. Thermostat
    C. Chronometer
    D. Pyrometer

  108. The science which deals with study of manners and customs of people is?
    A. Ethnology
    B. Morphology
    C. Ethics
    D. Genetics

  109. Chemical used to kill rats and mice are?
    A. Insecticides
    B. Rodenticides
    C. Fungicides
    D. Herbicides

  110. Dry ice is?
    A. Methane hydrate
    B. Liquid Nitrogen
    C. Solid Carbon dioxide
    D. Frozen Water

  111. Chemical name of vinegar is?
    A. Sodium Nitrate
    B. Dilute acetic acid
    C. Chloride of lime
    D. Calcium

  112. Deficiency of following vitamin decreases hemoglobin production?
    A. Biotin
    B. Thiamine
    C. Niacin
    D. Pyridoxine

  113. Hygrometer is used for measuring the?
    A. Speed of sound
    B. Density of milk
    C. Humidity of air
    D. Specific gravity of liquids

  114. Bronze is an alloy of?
    A. Copper and Zinc
    B. Tin and Zinc
    C. Copper and Tin
    D. Iron and Zinc

  115. Which of the following is most elastic?
    A. Steel
    B. Rubber
    C. Glass
    D. Sponge

  116. Orbital period of the planet Mercury around the sun is?
    A. 88 days
    B. 365 days
    C. 2 years
    D. 98 days

  117. The most splendid and the most magnificent constellation on the sky is?
    A. Orion
    B. Columbia
    C. Canis Major
    D. Taurus

  118. Eugenics is the study of?
    A. Altering human beings by changing their genetic components
    B. People of European region
    C. Different races of mankind
    D. Genetic of plants

  119. The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called?
    A. Aphelion
    B. Perihelion
    C. Perigee
    D. Apogee

  120. Diamond is a very expensive ornament. It is composed of a single element?
    A. Carbon
    B. Gold
    C. Silver
    D. Platinum

  121. Which of the following layers make radio transmission possible?
    A. Troposphere
    B. Ionosphere
    C. Mesosphere
    D. Stratosphere

  122. Which of the following explains the reason why there is no total eclipse of the sun?
    A. Size of the earth in relation to that of moon
    B. Orbit of moon around earth
    C. Direction of rotation of earth around sun
    D. Area of the sun covered by the moon

  123. Television signals are converted into light signals by?
    A. Optical fiber
    B. Transistor
    C. Decoder
    D. Photo diode

  124. Where do most of Asteroids lie?
    A. In asteroid belt between the orbits of Mars and Jupiter
    B. In asteroid belt between the orbits of Mars and Venus
    C. In asteroid belt between the orbits of Jupiter and Venus
    D. Everywhere in the sky

  125. The number of spark plugs needed in a diesel engine is?
    A. 2
    B. 3
    C. 0
    D. 4

  126. The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg?
    A. 4 days
    B. 12 days
    C. 16 days
    D. 8 days

  127. The term ‘Blue Shift’ is used to indicate?
    A. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object
    B. Turning a star from white to blue
    C. In future sun would become blue
    D. Black hole was blue at its start

  128. Kilowatt-hour is a unit of?
    A. Power
    B. Electric Current
    C. Energy
    D. Time

  129. Fuel used in a Fast Breeder Reactor is?
    A. Uranium Oxide
    B. Uranium Plutonium Oxide
    C. Uranium Plutonium carbide
    D. Uranium thorium Oxide

  130. Monsoon is caused by?
    A. Seasonal reversal of winds
    B. Revolution of earth
    C. Movement of clouds
    D. Rise in temperature

  131. Which of the following atmospheric layers help in radio communication?
    A. Exosphere
    B. Ionosphere
    C. Troposphere
    D. Stratosphere

  132. A moderator is used in nuclear reactor in order to?
    A. Accelerate the neutrons
    B. Slow down the speed of the neutrons
    C. Increase the number of electrons
    D. Decrease the number of electrons

  133. Sedimentary rocks are?
    A. Porous
    B. Hard
    C. Rough
    D. Brittle

  134. Which one of the following is a non-metallic mineral?
    A. Manganese
    B. Magnesium
    C. Gypsum
    D. Bauxite

  135. Ozone layer prevents radiation from entering the atmosphere?
    A. Infra-red
    B. Ultraviolet
    C. X-rays
    D. Gamma rays

  136. The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from?
    A. Ionosphere
    B. Troposphere
    C. Mesosphere
    D. Stratosphere

  137. Yeast is used in making bread because it produces?
    A. Carbon dioxide
    B. Sugar
    C. Bacteria
    D. Oxygen

  138. Oasis is associated with?
    A. Glaciers
    B. Desert
    C. Islands
    D. Volcanoes

  139. Quartz crystal in quartz watches work on the principle called?
    A. Photoelectric effect
    B. Stark effect
    C. Thermionic effect
    D. Piezo-electric effect

  140. The fruits without seed, like banana, are called?
    A. Seedless fruits
    B. Parthenogenesis fruits
    C. Parthenocarpic fruits
    D. placental fruits

  141. Animal which captures and readily kills living animals for its food is called?
    A. Parasite
    B. Scavenger
    C. Predator
    D. Mammal

  142. In a railway track, two rails are joined end to end with a gap in between them because?
    A. Steel can be saved
    B. Accidents due to contraction in winter can be avoided
    C. Air gaps are necessary for bearing the weight of running train
    D. Accidents due to expansion in summer can be avoided

  143. Name the famous book of Ibn-Sina in which he discussed human physiology and medicine?
    A. Al-Qanun
    B. Al-Masudi
    C. New Renaissance
    D. Tadhkira

  144. Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by?
    A. Conduction
    B. Convection
    C. Radiation
    D. Reflection

  145. In winter an iron pipe feel colder than a wooden window. This is because wood is?
    A. Conductor
    B. Non-Conductor
    C. Semi-Conductor
    D. Not a solid while iron is a solid

  146. The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least?
    A. 1120 ft
    B. 120 ft
    C. 56 ft
    D. 100 ft

  147. It is possible to recognize a person in the dark by simply hearing his unique voice. It is because of the?
    A. pitch
    B. Frequency
    C. Time period
    D. Quality

  148. When a ray of sunlight enters a dark room, its straight path become visible because of dust particles hanging in the air. It is because light is?
    A. Visible
    B. Transparent
    C. Invisible
    D. opaque

  149. A six feet tall lady wants to see her full image in a plane mirror. The minimum length of the mirror will be?
    A. 6 feet
    B. 12 feet
    C. 4 feet
    D. 3 feet

  150. The principle used in radar is the same as that of Sonar. In radar we use radio waves; whereas in sonar we use?
    A. red waves
    B. Infrared waves
    C. Ultrasonic
    D. super sonic

  151. In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus. This nuclear reaction is called?
    A. Chemical Reaction
    B. Nuclear reaction
    C. Fission nuclear reaction
    D. Fusion nuclear reaction

  152. Parsec is a unit of?
    A. Energy
    B. Time
    C. Power
    D. Distance

  153. German Silver is an alloy of?
    A. Zn + Ni
    B. Cu + Zn
    C. Cu + Ni
    D. Cu + Sn

  154. The Continent Antarctica lies at the?
    A. North pole
    B. South pole
    C. middle of the earth
    D. Equator

  155. The temperature of the dead body is?
    A. 0°C
    B. 37°C
    C. Room Temperature
    D. Temperature of the place where it is kept

  156. Lactometer is a type of Hydrometer which is used to measure the specific gravity of?
    A. Honey
    B. Water
    C. Milk
    D. olive oil

  157. Cusec is a unit of?
    A. Area
    B. Time
    C. Distance
    D. None of these

  158. The deepest place on earth is?
    A. Trench
    B. Mariana Trench
    C. Mangrove
    D. Groove

  159. Twinkling of stars is caused by?
    A. Reflection of light
    B. Polarization of light
    C. refraction of light
    D. Interference of light

  160. Magnifying power of a simple microscope can be increased by?
    A. increasing focal length of the lens
    B. Decreasing focal length of the lens
    C. Lens of large aperture
    D. lens of short aperture

  161. A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect?
    A. Current
    B. Voltage
    C. Nuclear Radiation
    D. power

  162. A body can escape the gravitational pull of the earth if it is thrown up with a velocity of?
    A. 25 miles per sec
    B. 60 miles per sec
    C. 7 miles per sec
    D. 10 miles per sec

  163. Night vision is possible with the help of?
    A. Red light
    B. Violet light
    C. Infrared Rays
    D. Ultra violet Light

  164. Myopia is a defect of Human eye, it can be corrected by using a lens called?
    A. Convex lens
    B. Concave lens
    C. Cylindrical lens
    D. Plano convex lens

  165. The instrument which is specially designed for recording earthquake wave is called seismograph which measure earthquake waves on a?
    A. Diatonic scale
    B. Fahrenheit Scale
    C. Richter scale
    D. Celsius Scale

  166. In humans, most nutrient molecules are absorbed by the?
    A. Small intestine
    B. Stomach
    C. Liver
    D. Large intestine

  167. Cobalt is a material which is?
    A. Strongly attracted by a magnet
    B. Not attracted by a magnet
    C. not a magnet
    D. Weakly attracted by a magnet

  168. What is the body temperature of a normal man?
    A. 81.1°C
    B. 37.0°C
    C. 98.6°C
    D. 21.7°C

  169. Which of the following helps in clotting of blood?
    A. Vitamin B1
    B. Vitamin B2
    C. Vitamin D
    D. Vitamin K

  170. Total volume of blood in a normal adult human being is?
    A. 5-6 liters
    B. 3-4 liters
    C. 8-10 liters
    D. 10-12 liters

  171. Red blood corpuscles are formed in the?
    A. Liver
    B. Bone marrow
    C. Kidneys
    D. Heart

  172. How many bones are there in an adult human being?
    A. 210
    B. 260
    C. 206
    D. 300

  173. Tibia is a bone found in the?
    A. Skull
    B. Arm
    C. Leg
    D. Face

  174. The largest part of the human brain is?
    A. Medulla oblongata
    B. Cerebellum
    C. Cerebrum
    D. None of these

  175. What is the main component of bones and teeth?
    A. Calcium carbonate
    B. Calcium phosphate
    C. Calcium sulphate
    D. Calcium nitrate

  176. The main constituent of hemoglobin is?
    A. Chlorine
    B. Iron
    C. Calcium
    D. None of these

  177. The main function of the kidney is?
    A. To control blood pressure
    B. To control body temperature
    C. To remove waste product from the body
    D. To help in digestion of food

  178. The function of hemoglobin is?
    A. Transportation of oxygen
    B. Destruction of bacteria
    C. Prevention of anemia
    D. Utilization of energy

  179. Which of the following glands secrete tears?
    A. Lachrymal
    B. Pituitary
    C. Thyroid
    D. Pancreas

  180. Which is the largest gland in the human body?
    A. Thyroid
    B. Liver
    C. Pancreas
    D. None of these

  181. Which is the largest organ in the human body?
    A. Liver
    B. Heart
    C. Skin
    D. Kidney

  182. Anti Diuretic hormone (ADH) also known as Vasopressin, Arginine Vasopressin and agripressin. Is secreted by?
    A. Pituitary
    B. Pancreas
    C. Thyroid
    D. Parathyroid

  183. In human the Y chromosome is passed to next generation from?
    A. Father to son
    B. Mother to son
    C. Father to daughter
    D. Mother to daughter

  184. The unit to measure the quantity of Ozone in atmosphere is?
    A. Dobson
    B. Cloning
    C. Dalton
    D. Colomb

  185. Female Ova are?
    A. Haploid
    B. Diploid
    C. Triploid
    D. None of these

  186. Which of the following is not a region of the spinal cord?
    A. Thoracic
    B. Lumber
    C. Pelvic
    D. All are lying in spinal cord region

  187. Development of calf muscles in ladies who wear high heel sandals is common example of?
    A. Natural selection
    B. Artificial selection
    C. Use & disuse of organ
    D. Inheritance of acquired character

  188. Communication satellites are in which orbit?
    A. Geosynchronous
    B. Semi synchronous
    C. Geostationary
    D. None of these

  189. A body can escape the gravitational pull of the earth if it is thrown up with a velocity of miles/second?
    A. 35
    B. 25
    C. 12
    D. 07

  190. Photography works by?
    A. Capturing the souls of the objects being photographed
    B. Capturing light reflected from the objects being photographed
    C. Both A & B
    D. None of these

  191. Cancer can be treated by?
    A. Antibiotics & vaccines
    B. Radiotherapy & antibiotics
    C. Chemotherapy & radiotherapy
    D. Antibiotics & Chemotherapy

  192. Patella is a bone of the?
    A. Skull
    B. Leg
    C. Arm
    D. Chest

  193. Which one of the following is a bio molecule?
    A. Formic Acid
    B. Tartaric Acid
    C. Glutamic Acid
    D. Glutaric Acid

  194. Dioptre is used to measure?
    A. Lens refractive power
    B. Luminous intensity
    C. Power
    D. Distance of heavenly bodies

  195. Charge carriers in a metal are electrons rather than protons because electrons are?
    A. Smaller
    B. Negative
    C. Loosely bound
    D. All of the above

  196. Energy possessed by water in a dam is?
    A. Electrical energy
    B. Mechanical energy
    C. Kinetic energy
    D. Potential energy

  197. In what year did Galileo first use an optical telescope to study the moon?
    A. 1492
    B. 1609
    C. 1212
    D. 1743

  198. Which metal known as quick silver?
    A. Mercury
    B. Sulphuric acid
    C. Chromite
    D. Quartz

  199. Mauna Loa is an example of?
    A. Active volcano
    B. Extinct volcano
    C. Plateau in volcanic region
    D. None of these

  200. An important ore of chromium is?
    A. Argon
    B. Chromite
    C. Mirage
    D. Diamond

  201. Earthquakes are caused by?
    A. Landslide
    B. Eruption of volcanoes
    C. Tectonic plates
    D. All of these

  202. The material that comes out of a volcano at the time of eruption is?
    A. Solid, liquid, gaseous
    B. Solid and liquid
    C. Solid and gaseous
    D. None of these

  203. Which of the following constituents of pollutant exhaust is hazardous to man?
    A. Carbon monoxide
    B. Carbon dioxide
    C. Lead particles
    D. Carbon particles

  204. The chemical name of bauxite?
    A. Aluminium Oxide
    B. Aluminium Chloride
    C. Aluminium Sulphite
    D. None of the above

  205. Myopia is a human eye disorder that can be corrected by using the lens?
    A. Convex
    B. Concave
    C. Cylindrical
    D. Medicine

  206. One mega ohm resistance is equal to?
    A. 10⁶ ohm
    B. 10⁸ ohm
    C. 10⁷ ohm
    D. 10⁻⁶ ohm

  207. For about how many hours food remains in small intestine?
    A. 2 to 6 hours
    B. 12 to 25 hours
    C. 7 to 11 hours
    D. 24 to 48 hours

  208. Hepatitis A is transmitted to various individuals by?
    A. Sneezing
    B. Faeces
    C. Spit
    D. Water

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