General Science
- A ship, on entering the sea from a river
a) sinks lower b) rises higher
c) neither rises nor sinks d) stops floating
- A thermostat is:
a) a device which increase temperature of electric equipment
b) a device used to maintain constant temperature in electrical equipment .
c) an instrument to check accuracy of thermometer
d) None of these
- Convex lenses are used for correction of
a) long sightedness b) short sightedness
c) cataract d) none of these
- Which mirror is used as a rear view mirror in vehicles?
a) plain b) convex c) concave d) spherical
- Filament of an electric bulb is made of ?
a) iron b) tungsten c) copper d) spherical
- Mica is used in electric bulb is made of ?
a) good conductor of heat b) good conductor of electricity
c) bad conductor of heat d) bad conductor of electricity
- When ice melts in a beaker of water, the level of water in the beaker will :
a) increase b) decrease
c) remain the same d) first increase and then decrease
- The dynamo converts
a) Mechanical energy into electrical energy.
b) electrical energy into mechanical energy.
c) kinetic energy into potential energy.
d) potential energy into kinetic energy.
- Cloudy nights are warmer because.
a) clouds prevent radiation of heat from ground to air.
b) of low atmospheric pressure
c) of the compact density of air.
d) more dust particles gather in the air.
- The best conductor of heat is:
a) iron b) aluminum c) copper d) silver
- What are ultrasonic waves?
a) sound waves having frequency shorter than audio frequency range.
b) sound waves produced in vacuum.
c) sound waves having frequency higher than audio frequency range.
d) none of these
- In the process of galvanization an iron sheet is coated with:
a) aluminum b) zinc c) tin d) galena
- A radar which detects the presence of an enemy aircraft uses.
a) sound waves b) radio waves
c) electric waves d) ultrasonic waves
- Food is cooked quickly in a pressure cooker because.
a) boiling point of water decreases
b) boiling point of water increases.
c) it absorbs heat quickly.
d) it retains heat for a longer duration.
- A molecule is :
a) a class of organic compounds.
b) the smallest unit of a substance that retains the properties of the substance.
c) the spectrum of a substance.
d) a small mass of an element.
- Which of the following is a good conductor of heat but a bad conductor of electricity?
a) asbestos b) celloulid c) mica d) none of these
- A transformer is used to :
a) increase DC voltage
b) increase of decrease AC voltage.
c) decrease DC voltage d) convert DC into AC
- When milk is churned, the cream is separated due to :
a) gravitational force b) centrifugal force
c) frictional force d) heat
- During rusting.
a) iron gains weight b) iron loses weight.
c) weight of iron remains unchanged.
d) iron volatilizes.
- Velocity of sound is maximum in :
a) air b) water c) steel d) vacuum
- The common refrigerant used in the domestic refrigerator is :
a) neon b) Freon/ammonia c) spirit d) None of these
- A red light is used in a traffic signal because?
a) it has the longest wavelength.
b) it is beautiful
c) it is visible to people even with bad eyesight
d) none of these
- Metals are good conductors of electricity because.
a) they contain free electrons
b) the atoms are lightly packed.
c) they have high melting point.
d) all of the above.
- An echo is produced by the ….. of sound waves.
a) refraction b) absorption c) reflection d) diffraction
- Which among the following planets is the smallest in size?
a) Venus b) Mars c) Earth d) Saturn
- Einstein was awarded the Noble Prize for his work on……
a) special theory of relativity
b) general theory of relativity.
c) theory of photoelectric effect.
d) theory of Brownian motion.
- One litre of water is equivalent to :
a) 1.5 kg. b) 1 kg. c) 1.25 kg. d) 0.90 kg.
- The purest form of carbon is :
a) coal b) graphite c) diamond d) none
- Match the following
Raw Material Products
A. Calcium carbonate 1. gun powder
B. red phosphorus 2. cement
C. silicon dioxide 3. glass
D. potassium nitrate 5. safety matches
A B C D A B C D
a) 2 4 3 1 b) 3 4 1 2
c) 4 3 1 2 d) 4 3 2 1
- Match the following :
Acids Present in
A. Iactic acid 1. Lemon
B. acetic acid 2. rancid butter
C. citric acid 3. milk
D. butyric acid 4. vinegar
A B C D A B C D
a) 2 3 1 4 b) 4 2 1 3
c) 3 4 1 2 c) 4 3 1 2
- Bauxite is an ore of
a) iron b) zinc c) tin d) aluminum
- Match the following ?
A. Glass 1. phosphorus
B. cement 2. clay
C. matches 3. silica
D. ink 4. carbon black
A B C D A B C D
a) 2 1 3 4 b) 3 2 1 4
c) 4 3 2 1 d) 3 1 4 2
- What is the dry ice ?
a) calcium hydroxide b) solid carbon dioxide
c) sodium hydroxide d) None of these
- Sugar contains
a) vitamins b) carbohydrates c) proteins d) all these
- Which gas leaked in Bhopal gas tragedy ?
a) carbon monoxide b) methyl isocynate
c) ethyl cyanide d) phenyl isocynate
- Which of the following is not a chemical change ?
a) burning of coal b) burning of paper
c) burning of wood d) conversion of water into steam
- The chemical name of table salt is
a) calcium chloride b) sodium chlorite
c) sodium hypochlorite d) sodium chloride
- Chemical name of vitamin C is :
a) citric acid b) ascorbic acid c) oxalic acid d) nitric acid
- Bone is used as a fertilizer because it contains the plant nutrient ?
a) nitrogen b) phosphorus c) sodium d) potassium
- Baking soda is :
a) sodium bicarbonate b) sodium carbonate
c) sodium chloride d) sodium hydroxide
- Plaster of Paris is made from.
a) bauxite b) gypsum c) lime d) none of these
- Petroleum consists of a complex mixture of :
a) carbonates b) carbohydrates
c) hydrocarbons d) None of these
- The most abundant elements is the earth's atmosphere is :
a) oxygen b) hydrogen c) nitrogen d) carbon dioxide.
- The three abundant element in the earth's crust are aluminum, oxygen and silicon. The correct order of their abundance is :
a) silicon, aluminum, oxygen
b) aluminum, silicon, oxygen.
c) silicon, oxygen, aluminum
d) oxygen, silicon, aluminium.
- The chief constituent of gobar gas is :
a) hydrogen b) methane c) ethane d) carbon dioxide
- The conversion of a substance directly from solid to vapour state is known as:
a) decomposition b) vaporization
c) ionization d) sublimation
- Sea water is saltier than rain water because:
a) the air around sea is salty.
b) sea beds have salt deposits.
c) rivers wash away salts from the earth crust and pour these into sea.
d) sea animals are salt producing.
- Which of the following gases may cause acid rain in an industrial area?
a) CO2 b) CO c) SO2 d) CH4
- Which of the following substances is the most important constituent of biogas?
a) H2S b) CO2 c) CH4 d) H2
- Which of the following elements are the main constituents of bronze?
a) Nickel and Chromium b) Lead and Tin
c) Copper and Zink d) Copper and Tin
- The acid used in car battery is ______
a) Hydrochloric Acid b) Boric Acid
c) Sulphuric Acid d) Carbonic Acid
- Cooling gas is a mixture of :
a) Methane & Carbon Dioxide
b) Oxygen & Nitrogen.
c) Butane & Propane
d) Butane & Methane
- Which of the following gases does not pollute air.
a) Carbon Dioxide b) Carbon Monoxide
c) Nitrogen Dioxide d) Sulphur Dioxide
- Which of the following processes is used in obtaining charcoal from wood ?
a) Destructive distillation b) Fractional distillation
c) Oxidation d) Carbonation
- Green Plants manufacture food in the presence of :
a) light b) darkness c) heat d) mineral salts
- If all the plants in the world die, the animal life would also vanish for want of :
a) Cool air b) wood c) oxygen d) carbon dioxide
- The site of photosynthesis is :
a) chloroplasts b) mitochondria
c) vacuoles d) endoplasmic reticulum
- Flower colours are due to :
a) chlorophyll b) anthocyanins
c) phyttochromes d) melanin
- The bitter – sharp taste of unripe fruits is due to high concentration of :
a) phenonic compounds b) volatile compound
d) organic acid d) starch
- Plants produce _____ in day.
a) carbon dioxide b) oxygen c) nitrogen d) none
- Potato is the modified from (outgrowth) of :
a) root b) leaf c) flower d) stem
- What is the source of oxygen in photosynthesis in plants ?
a) water b) carbon dioxide c) glucose d) starch
- What is the function of green leaves in plants?
a) respiration b) photosynthesis c) reproduction d) growth
- Photosynthesis is the process by which:
a) green plants manufacture carbohydrates from water.
b) green plants manufacture carbohydrates from air.
c) green plants build up carbohydrates from oxygen.
d) green plants build up carbohydrates from carbon dioxide
- The process by which plants lose water vapour into the air is called ?
a) osmosis b) photosynthesis
c) plasmolysis d) transpiration
- According to zoological classification of the animal kingdom, man belongs to the class of :
a) amphibians b) mammalia
c) osteichthyes d) none of these
- According to the classification of the animal kingdom, frog belongs to the class of :
a) osteichthyes b) amphibian s
c) mammalia d) none of these
- Process of cell division can take place by:
a) heterosis b) fusion c) mitosis d) None of these
- Which of the following organisms has no blood but respires?
a) cockroach b) earthworm c) fish d) hydra
- Mammals are.
a) worm – blooded b) cold – blooded
c) both warm and cold blooded d) None of these
- Which of the following is not a mammal?
a) fish b) cow c) goat d) whale
- In mammals fertilization takes place in :\
a) ovary b) uterus c) fallopian tubes d) ureter
- Largest known vertebrate is :
a) elephant b) whale c) giant squid d) None of these
- Fish respire through the.
a) nose b) lungs c) gills d) fins
- What is the temperature of a normal man?
a) 81.10 C b) 36.90 C c) 98.60 C d) 21.70 C
- Which of the following helps in clotting of blood?
a) vitamin B1 b) vitamin B2 c) vitamin D d) vitamin K
- Total volume of blood in a normal adult human being is :
a) 5 – 6 litres b) 3 – 4 litres
c) 8 – 10 lietres d) 10 -12 lietres
- How many bones are there in an adult human being ?
a) 210 b) 250 c) 206 d) 300
- The pancreas secretes ?
a) insulin b) bile juice c) peptic juice d) None of these
- The largest part of the human brain is the :
a) medulla oblongata b) cerebellum
c) cerebrum d) None of these
- What is the main component of banes and teeth?
a) calcium carbonate b) calcium sulphate
c) calcium sulphate d) calcium nitrate
- The main constituent of hemoglobin is :
a) chlorine b) iron c) calcium d) None of these
- The main function of the kidney is :
a) to control blood pressure
b) to control body temperature
c) to remove waste products from the body.
d) to help in digestion of food.
- The function of hemoglobin is :
a) transportation of oxygen b) destruction of bacteria
c) preservation of anaemia d) utilization of energy.
- Which of the following glands secrete tears?
a) Lachyrmal b) Pituitary c) Thyroid d) Pancreas
- Which is the largest gland in the human body?
a) Thyroid b) liver c) Pancreas d) None of these
- Which is the largest organ in the human body?
a) Liver b) Heart c) Skin d) Kidney.
- A person of which of the following blood groups is called a universal donor?
a) O b) AB c) A d) B
- Which of the following vitamins promote healthy functioning of eyes in human beings?
a) Vitamin B b) Vitamin C c) Vitamin A d) Vitamin D
- The average heartbeat per minute in a normal man is :
a) 50 b) 70 c) 80 d) 100
- A person of which of the following blood groups can receive blood of any group?
a) A b) AB c) B d) O
- Myopia is a disease connected with :
a) ears b) eyes c) lungs d) brain
- Leukemia is a disease of the
a) lungs b) blood c) skin d) nerves
- Short-sightedness can be corrected by using.
a) convex lens b) concave lens
c) convex-concave lens d) concave-convex lens
- Match the following.
Column I Column II
A. Beri-beri 1. Vitamin A
B. Scurvy 2. vitamin B
C. Rickets 3. vitamin C
D. Night blindness 4. Vitamin D
A B C D A B C D
a) 3 2 1 4 b) 2 1 3 4
c) 2 3 4 1 d) 2 3 1 4
- Pyorrhoea is a disease of the:
a) nose b) gums c) heart d) lungs
- Lock of _______ causes diabetes.
a) sugar b) insulin c) calcium d) vitamins
- Acquired Immuno-Deficiency Syndrome (AIDS) is cause by:
a) bacterium b) protozoan c) fungus d) virus
- Match the following columns :
Column I Column II
A. Cataract 1. Bones
B. jaundice 2. Eyes
C. Diabetes 3. Liver
D. Arthritis 4. Pancreas
A B C D A B C D
a) 2 3 4 1 b) 2 3 1 4
c) 1 3 4 2 d) 3 2 4 1
- Bronchitis is a disease of which of the following organs ?
a) Blood b) Bladder c) Liver d) Respiratory tract
- ECG is used for the diagnosis of ailments of :
a) brain b) heart c) kidneys d) lungs
- Dialysis is used for the treatment of :
a) kidney failure b) heart weakness
c) brain diseases d) none of these
- Rickets is a disease of the :
a) bones b) issue c) muscles d) blood
- The human cell contains:
a) 44 chromosomes b) 48 chromosomes
c) 46 chromosomes d) 23 chromosomes
- Enzymes help in :
a) respiration b) digestion of food
c) immune system d) reproduction
- Food is normally digested in the :
a) liver b) stomach
c) small intestines d) large intestines
- Which pair of diseases may result if a baby is deficient in protein?
a) Kwashiorkor & Pellagra
b) Kwashiorkor & Rickets
c) Kwashiorkor & Marasmus
d) Marasmus & Osteomalacea
- Which of the following acids is present in vitamin C?
a) Citric acid b) Ascorbic Acid
c) Lactic Acid d) Folic Acid
- Antigen.
a) Lowers body temperature.
b) destroys harmful bacteria.
c) triggers the immune system.
d) is used as an antidote to poison.
- According to WHO, the disease causing the death of the largest number of people today is :
a) AIDS b) tuberculosis c) malaria d) cholera
| 1. B | 2. B | 3. A | 4. B | 5. B | 6. D | 7. C | 8. A | 9. A | 10. D |
| 11. C | 12. B | 13. B | 14. B | 15. B | 16. C | 17. B | 18. B | 19. A | 20. C |
| 21. B | 22. A | 23. A | 24. C | 25. B | 26. C | 27. D | 28. C | 29. A | 30. C |
| 31. D | 32. B | 33. B | 34. B | 35. B | 36. D | 37. D | 38. B | 39. B | 40. A |
| 41. B | 42. C | 43. C | 44. C | 45. B | 46. D | 47. C | 48. C | 49. C | 50. D |
| 51. C | 52. C | 53. C | 54. A | 55. A | 56. C | 57. C | 58. C | 59. C | 60. B |
| 61. D | 62. B | 63. B | 64. D | 65. D | 66. B | 67. B | 68. C | 69. D | 70. A |
| 71. A | 72. C | 73. B | 74. C | 75. B | 76. D | 77. A | 78. C | 79. A | 80. C |
| 81. B | 82. B | 83. C | 84. A | 85. A | 86. B | 87. C | 88. A | 89. C | 90. D |
| 91. B | 92. B | 93. B | 94. B | 95. C | 96. B | 97. B | 98. D | 99. A | 100. D |
| 101. B | 102. A | 103. A | 104. C | 105. B | 106. C | 107. C | 108. B | 109. B | 110. B |
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