SSC General Science & Technology Sample Paper

done NCERT Sample Paper-1 Total Questions - 99    [Download]

• question_answer1)
  Sodium bicarbonate is useful as a fire extinguisher because
  A)
   It decomposes on heating to give carbon dioxide, which extinguishes fires
  done clear
  B)
   It releases water which extinguishes fires
  done clear
  C)
   It serves as a blanket for fires
  done clear
  D)
   It emits a foam which extinguishes fires
  done clear
  View Answer play_arrow

• question_answer2)
  The mammal that lays eggs is:
  A)
   Opossum
  done clear
  B)
   duck-billed-platypus
  done clear
  C)
   Otter
  done clear
  D)
   Kangaroo
  done clear
  View Answer play_arrow

• question_answer3)
  The water from a hand-pump is warm in winter because
  A)
   Our body is cold in winter and water appears to be warm
  done clear
  B)
   The temperature inside the earth is higher than the atmospheric temperature
  done clear
  C)
   The pumping process causes friction which warms up the water
  done clear
  D)
   Inside water comes out and absorbs heat from the environment
  done clear
  View Answer play_arrow

• question_answer4)
  Genes control heredity in man and other organisms. This gene is:
  A)
   A protein molecule
  done clear
  B)
   A segment of RNA
  done clear
  C)
   A bead-like structure on the chromosomes
  done clear
  D)
   A segment of DNA
  done clear
  View Answer play_arrow

• question_answer5)
  Aluminium in the earth's crust is found as
  A)
   Gypsum          
  done clear
  B)
   bauxite
  done clear
  C)
   Native metal    
  done clear
  D)
          cryolite
  done clear
  View Answer play_arrow

• question_answer6)
  The only reptiles that have specially adapted jaws to be able to swallow eggs or prey much larger in diameter than themselves are.
  A)
   Tortoises          
  done clear
  B)
   dragon lizards
  done clear
  C)
   Monitor lizards
  done clear
  D)
   snakes
  done clear
  View Answer play_arrow

• question_answer7)
  A jet plane flies in the air because
  A)
   The gravity does not act on bodies moving with high speeds
  done clear
  B)
   The thrust of the jet compensate for the force of gravity
  done clear
  C)
   The flow of air around the wings causes an upward force, which compensates for the force of gravity
  done clear
  D)
   The weight of air whose volume is equal to the volume of the plane is more than the weight of the plane.
  done clear
  View Answer play_arrow

• question_answer8)
  A pungent odour or the smell of a fine perfume is interpreted in the brain in the:
  A)
   cerebrum         
  done clear
  B)
   Cerebral hemispheres
  done clear
  C)
   Temporal cortex 
  done clear
  D)
             Cerebellum
  done clear
  View Answer play_arrow

• question_answer9)
  Gasoline is the name given to the same substance as
  A)
   Diesel oil
  done clear
  B)
   petrol
  done clear
  C)
   Natural gas
  done clear
  D)
   crude oil
  done clear
  View Answer play_arrow

• question_answer10)
  The Red Sea derives its name from the:
  A)
   Red bloom caused by a red alga
  done clear
  B)
   Seed bloom caused by a blue-green alga
  done clear
  C)
   Profuse growth of a red flowered plant
  done clear
  D)
   Red coloured effluents deposited in it
  done clear
  View Answer play_arrow

• question_answer11)
  When milk is converted into curd, me sour taste is due to:
  A)
   Acetic acid       
  done clear
  B)
   Citric acid
  done clear
  C)
   Lactic acid       
  done clear
  D)
   Tartaric acid
  done clear
  View Answer play_arrow

• question_answer12)
  The substance that is least prone to catch and spread fire is
  A)
   Nylon  
  done clear
  B)
   terycot
  done clear
  C)
   Cotton 
  done clear
  D)
   polyester
  done clear
  View Answer play_arrow

• question_answer13)
  The age of a tree can be found by:
  A)
   Analysis of its sap
  done clear
  B)
   Measuring its height
  done clear
  C)
   Measuring its diameter
  done clear
  D)
   Counting the annual growth rings in a section of its stem
  done clear
  View Answer play_arrow

• question_answer14)
  People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 meter have around 8 million. This is because at high altitude.
  A)
   Atmospheric 02 level is less and hence, more RBCs are needed to absorb the required amount of O2 to survive
  done clear
  B)
   There is more UV radiation which enhances RBC production
  done clear
  C)
   People eat more nutritive food; therefore, more RBCs are formed
  done clear
  D)
   People get more pollution-free air to breathe and more oxygen is available
  done clear
  View Answer play_arrow

• question_answer15)
  A normal resting heart rate for adults ranges from:
  A)
   60 - 100 beats a minute
  done clear
  B)
   50 - 72 beats a minute
  done clear
  C)
   60 - 80 beats a minute
  done clear
  D)
   72 -100 beats a minute
  done clear
  View Answer play_arrow

• question_answer16)
  The fundamental role of-root hairs in plants is:
  A)
   To bind soil particles to the root for firm fixation of the plant
  done clear
  B)
   To protect the young root from damage by coarse soil particles
  done clear
  C)
   To absorb water and mineral salts from me soil
  done clear
  D)
   To protect the root from soil microbes
  done clear
  View Answer play_arrow

• question_answer17)
  Which one of the following statements regarding potato is correct?
  A)
   It is a root        
  done clear
  B)
   It is a normal stem
  done clear
  C)
   It is a modified stem
  done clear
  D)
   It is a modified root
  done clear
  View Answer play_arrow

• question_answer18)
  The artificial kidney operates on the principle of:
  A)
   Active transport
  done clear
  B)
   diffusion
  done clear
  C)
   Osmosis           
  done clear
  D)
   dialysis
  done clear
  View Answer play_arrow

• question_answer19)
  For respiration deep-sea divers use a mixture of
  A)
   Oxygen and helium
  done clear
  B)
   Oxygen and carbon dioxide
  done clear
  C)
   Oxygen and nitrogen
  done clear
  D)
   Hydrogen and oxygen
  done clear
  View Answer play_arrow

• question_answer20)
  What is the vital capacity of our lungs?
  A)
   Inspiratory reserve volume plus tidal volume
  done clear
  B)
   Total lung capacity minus expiratory reserve volume
  done clear
  C)
   Inspiratory reserve volume plus expiratory reserve volume
  done clear
  D)
   Total lung capacity minus residual volume
  done clear
  View Answer play_arrow

• question_answer21)
  A person will have brown eyes, blue eyes or black eyes depending upon the particular pigment present in the :
  A)
   Cornea
  done clear
  B)
   Vitreous body
  done clear
  C)
   Iris                  
  done clear
  D)
   Choroid
  done clear
  View Answer play_arrow

• question_answer22)
  Iron articles rust because of the formation of
  A)
   Ferrous chloride 
  done clear
  B)
   Sodium carbonate
  done clear
  C)
   A mixture of ferrous and ferric hydroxides
  done clear
  D)
   Ferric chloride
  done clear
  View Answer play_arrow

• question_answer23)
  Match List-I (Nutrient) with List-II (Food stuff) and select the correct answer using the codes given below the Lists

  	List- I (Nutrient)		List- II (Food stuff)
  A.	Protein	1.	Cheese
  B.	Fats	2.	Butter
  C.	Minerals	3.	Green vegetables
  D.	Starch	4.	Maize

  Codes:
  A)
   A\[\to \]2, B\[\to \]1, C\[\to \]3, D\[\to \]4
  done clear
  B)
   A\[\to \]1, B\[\to \]2, C\[\to \]3, D\[\to \]4
  done clear
  C)
   A\[\to \]1, B\[\to \]2, C\[\to \]4, D\[\to \]3
  done clear
  D)
   A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3
  done clear
  View Answer play_arrow

• question_answer24)
  Detergents produce lather with hard water because
  A)
   They are soluble in hard water
  done clear
  B)
   They are colourless substance
  done clear
  C)
   The calcium and magnesium salt of sulphonic acid are soluble in water
  done clear
  D)
   They form sodium carbonate with hard water
  done clear
  View Answer play_arrow

• question_answer25)
  Which part of ovary in mammals acts as an endocrine gland after ovulation?
  A)
   Graafian follicle
  done clear
  B)
   Stroma
  done clear
  C)
   Germinal epithelium
  done clear
  D)
   Vitelline membrane
  done clear
  View Answer play_arrow

• question_answer26)
  'Chlorination' is
  A)
   A process of converting chlorides into chlorine
  done clear
  B)
   Adding small amounts of chlorine to impure water
  done clear
  C)
   A chemical reaction in which chlorine is formed
  done clear
  D)
   The formation of a salt containing chlorine
  done clear
  View Answer play_arrow

• question_answer27)
  A colour blind girl is rare because she will be born only when
  A)
   Her mother and maternal grandfather were colour blind
  done clear
  B)
   Her father and maternal grandfather were colour blind
  done clear
  C)
   Her mother is colour blind and father has normal vision
  done clear
  D)
   Parents have normal vision but grandparents were colour blind
  done clear
  View Answer play_arrow

• question_answer28)
  'Gobar gas' contains mainly
  A)
   acetylene         
  done clear
  B)
   methane
  done clear
  C)
   Carbon dioxide
  done clear
  D)
   ethylene
  done clear
  View Answer play_arrow

• question_answer29)
  Probiotics are
  A)
   Safe antibiotics
  done clear
  B)
   Cancer inducing microbes
  done clear
  C)
   New kind of food allergens
  done clear
  D)
   Live microbial food supplement
  done clear
  View Answer play_arrow

• question_answer30)
  Cooking gas is a mixture of
  A)
   Butane and propane
  done clear
  B)
   Methane and ethylene
  done clear
  C)
   Carbon monoxide and carbon dioxide
  done clear
  D)
   Carbon dioxide and oxygen
  done clear
  View Answer play_arrow

• question_answer31)
  Photosynthetic bacteria have pigments in
  A)
   chromoplasts
  done clear
  B)
          leucoplasts
  done clear
  C)
   Chloroplasts     
  done clear
  D)
   chromatophore
  done clear
  View Answer play_arrow

• question_answer32)
  Diesel oil is preferred for heavy motor vehicles because of
  A)
   Higher efficiency and fuel economy
  done clear
  B)
   Less consumption
  done clear
  C)
   Less damage of engine
  done clear
  D)
   Higher industrial production from crude
  done clear
  View Answer play_arrow

• question_answer33)
  The freezer in a refrigerator is fitted near the top:
  A)
   Because of convenience
  done clear
  B)
   To keep it away from the hot compressor which is near the bottom
  done clear
  C)
   so that it can cool the whole interior by setting up convection currents
  done clear
  D)
   Without any specific purpose
  done clear
  View Answer play_arrow

• question_answer34)
  Addition of a trace of thyroxine or iodine in water containing tadpole will................
  A)
   Keep them in larval stage
  done clear
  B)
   Hasten their metamorphosis
  done clear
  C)
   Slow down their metamorphosis
  done clear
  D)
   Kill the tadpoles
  done clear
  View Answer play_arrow

• question_answer35)
  The gas emitted by burning wood is mainly
  A)
   Carbon monoxide
  done clear
  B)
   sulphur dioxide
  done clear
  C)
   Carbon dioxide
  done clear
  D)
   methane
  done clear
  View Answer play_arrow

• question_answer36)
  Hot coffee is poured simultaneously in four metallic tumblers painted outside with different types of paints. After some time, the coffee will be found coldest in the tumbler painted:
  A)
   Shining black    
  done clear
  B)
   rough white
  done clear
  C)
   Rough black     
  done clear
  D)
   shining white
  done clear
  View Answer play_arrow

• question_answer37)

  Consider the following statements:

  (1) Dengue is a protozoan disease transmitted by mosquitoes

  (2) Retro-orbital pain is not a symptom of Dengue

  (3) Skin rash and bleeding from nose and gums are some of the symptoms of Dengue

  Which of the above statements is/are correct?

  A)
   1 and 2
  done clear
  B)
   3 only
  done clear
  C)
   2 only 
  done clear
  D)
   1 and 3
  done clear
  View Answer play_arrow

• question_answer38)
  The process responsible for the enormous energy in the sun is:
  A)
   The burning of gases      
  done clear
  B)
   nuclear fusion
  done clear
  C)
   Nuclear fission
  done clear
  D)
   as yet unknown
  done clear
  View Answer play_arrow

• question_answer39)
  The main use of salt in the diet is to
  A)
   Increase the solubility of food particles in water
  done clear
  B)
   Produce in small amounts the hydrochloric acid required for the digestion of food
  done clear
  C)
   Make the taste of food better
  done clear
  D)
   Ease the process of cooking
  done clear
  View Answer play_arrow

• question_answer40)
  When a pencil is partly immersed in water in a slanting position, the immersed portion appears :
  A)
   Curved downwards
  done clear
  B)
   Bent towards the water surface
  done clear
  C)
   Bent in a zigzag mannar
  done clear
  D)
   Bent towards the bottom
  done clear
  View Answer play_arrow

• question_answer41)
  Which of the following vitamins and deficiency diseases is not correctly matched?
  A)

  Vitamin A

  Night blindness

  done clear
  B)

  Vitamin B1

  Pellagra

  done clear
  C)

  Vitamin D

  Deformities

  done clear
  D)

  Vitamin K

  Hemorrhage

  done clear
  View Answer play_arrow

• question_answer42)
  Nicrome wire is used as a heating element in many- appliance because:
  A)
   It can be drawn out into wires easily
  done clear
  B)
   It has high resistivity
  done clear
  C)
   It resists oxidation in air when red hot
  done clear
  D)
   Both b and c are correct
  done clear
  View Answer play_arrow

• question_answer43)
  In the manufacture of bread, the dough rises because of
  A)
   The evaporation of water used in kneading the dough
  done clear
  B)
   The action of heat in the baking process
  done clear
  C)
   The capillary of water in the dough
  done clear
  D)
   The releasing action of carbon dixode formed during the fermentation process
  done clear
  View Answer play_arrow

• question_answer44)
  A police van sounding its siren is moving away from an observer. The pitch (shrillness) of the sound from the siren relative to its normal pitch is
  A)
   Lower
  done clear
  B)
   Same
  done clear
  C)
   Higher
  done clear
  D)
   Lower or higher depending on the speed of the van
  done clear
  View Answer play_arrow

• question_answer45)

  Consider the following statements:

  Assertion : Diabetes mellitus is a condition in which a person has a high blood sugar (glucose) level as a result of the body either not producing enough insulin or because body cells do not properly respond to insulin that is produced.

  Reason(R): Gestational diabetes is when pregnant women who have never had diabetes before have a high blood glucose level during pregnancy. In the context of the above two statements which one of the following is correct?

  A)
   Both A and R are true and R is the correct explanation of A
  done clear
  B)
   Both A and R are true and R is not a correct explanation of A
  done clear
  C)
   A is true but R is false.
  done clear
  D)
   A is false but R is true.
  done clear
  View Answer play_arrow

• question_answer46)
  If a fuse blows frequently, one should:
  A)
   Replace it with a paper chip
  done clear
  B)
   Replace it with a thin wire
  done clear
  C)
   Replace it with a thick copper wire
  done clear
  D)
   Call an electrician
  done clear
  View Answer play_arrow

• question_answer47)
  Persons in asbestos factories are affected by air pollution, the most affected part of their body is the
  A)
   Eye                 
  done clear
  B)
   throat
  done clear
  C)
   Lungs  
  done clear
  D)
   skin
  done clear
  View Answer play_arrow

• question_answer48)
  An electrical appliance is earthed to:
  A)
   Reduce consumption
  done clear
  B)
   Prevent shocks
  done clear
  C)
   Protect the appliance against any damage
  done clear
  D)
   Avoid short-circuiting
  done clear
  View Answer play_arrow

• question_answer49)
  Which one of the following vitamin can be synthesized by bacteria inside the gut?
  A)
   B1                  
  done clear
  B)
   C
  done clear
  C)
   D                    
  done clear
  D)
   K
  done clear
  View Answer play_arrow

• question_answer50)
  The sky appears blue because:
  A)
   All colours interfere to produce blue
  done clear
  B)
   In white light the blue component dominates
  done clear
  C)
   The atmosphere scatters blue colour more than the other
  done clear
  D)
   It is actually blue
  done clear
  View Answer play_arrow

• question_answer51)
  All acids essentially contain the element
  A)
   Oxygen
  done clear
  B)
   chlorine
  done clear
  C)
   Sulphur
  done clear
  D)
   hydrogen
  done clear
  View Answer play_arrow

• question_answer52)
  The sun remains visible for some time after it actually sets below the horizon. This happens due to:
  A)
   Dispersion        
  done clear
  B)
          Atmospheric refraction
  done clear
  C)
   Scattering of light
  done clear
  D)
            Persistence of vision
  done clear
  View Answer play_arrow

• question_answer53)
  A woman's voice is shriller than a man's due to:
  A)
   Higher frequency
  done clear
  B)
   weak vocal chords
  done clear
  C)
   Lower frequency
  done clear
  D)
   higher amplitude
  done clear
  View Answer play_arrow

• question_answer54)
  Which one of the following organs in the human body is most affected due to shortage of oxygen?
  A)
   Intestine           
  done clear
  B)
   Skin
  done clear
  C)
   Kidney 
  done clear
  D)
   Brain
  done clear
  View Answer play_arrow

• question_answer55)
  Light coloured clothes are preferred in summer because:
  A)
   They soak sweat faster
  done clear
  B)
   Light colours are poor absorbers of heat
  done clear
  C)
   They allow body heat to escape faster
  done clear
  D)
   Light colours ate good radiators of heat
  done clear
  View Answer play_arrow

• question_answer56)
  A substance that removes dirt and grease from surfaces is called a
  A)
   Detergent         
  done clear
  B)
   lubricant
  done clear
  C)
   Bleaching agent
  done clear
  D)
   reducing agent
  done clear
  View Answer play_arrow

• question_answer57)
  It take much longer to cook things in the hills than in the plane, because:
  A)
   In the hills the atmospheric temperature is low and therefore a lot of heat is lost to the atmosphere
  done clear
  B)
   In the hills the atmospheric pressure is lower than that in the plains and therefore water boils at lower temperature
  done clear
  C)
   In the hills the humid atmosphere absorbs a lot of heat, leaving very little for the cooking
  done clear
  D)
   Due to low atmospheric pressure in the hills the boiling point of water is raised and therefore water takes longer to boil
  done clear
  View Answer play_arrow

• question_answer58)
  The process of transfer of genetic information from DNA to RNA/formation of RNA from DNA is:
  A)
   transversion      
  done clear
  B)
          transcription
  done clear
  C)
   Translation
  done clear
  D)
   translocation
  done clear
  View Answer play_arrow

• question_answer59)
  In cold countries alcohol is preferred to mercury as a thermometric liquid because:
  A)
   Alcohol is a better conductor of heat
  done clear
  B)
   Alcohol can be coloured and its level seen easily
  done clear
  C)
   Alcohol has a very low freezing point
  done clear
  D)
   Alcohol is cheaper than mercury
  done clear
  View Answer play_arrow

• question_answer60)
  Fish can survive inside a frozen lake because:
  A)
   Ice is good conductor of heat
  done clear
  B)
   Fish are warm blooded animals
  done clear
  C)
   Water near the bottom does not freeze
  done clear
  D)
   Fish is hypemate in ice
  done clear
  View Answer play_arrow

• question_answer61)
  Haemophilia is more common in males because it is a
  A)
   Recessive character carried by Y-chromosome
  done clear
  B)
   Dominant character carried by Y-chromosome
  done clear
  C)
   Dominant trait carried by X-chromosome
  done clear
  D)
   Recessive trait carried by X-chromosome
  done clear
  View Answer play_arrow

• question_answer62)
  If an apple is released from an orbiting spaceship, it will:
  A)
   Move at a lower speed
  done clear
  B)
   Move along with the space ship at the same speed
  done clear
  C)
   Move at the higher speed
  done clear
  D)
   Fall towards the earth
  done clear
  View Answer play_arrow

• question_answer63)
  During dehydration, the substance that usually lost by the body is
  A)
   Sugar
  done clear
  B)
   Sodium chloride
  done clear
  C)
   Calcium phosphate
  done clear
  D)
   Potassium chloride
  done clear
  View Answer play_arrow

• question_answer64)
  When a ship enters a sea from a river:
  A)
   It sinks a little
  done clear
  B)
   It rises a little
  done clear
  C)
   It remains at the same level
  done clear
  D)
   It rises or sinks depending on the material it is made of
  done clear
  View Answer play_arrow

• question_answer65)
  Cancerous cells can easily be destroyed by radiation due to
  A)
   Rapid cell division
  done clear
  B)
   lack of nutrition
  done clear
  C)
   Fast mutation
  done clear
  D)
   lack of oxygen
  done clear
  View Answer play_arrow

• question_answer66)
  A sheet of paper can be pulled out quickly from under a glass of water without spilling the water. This phenomenon illustrates:
  A)
   Acceleration
  done clear
  B)
   Luck of friction between paper and glass
  done clear
  C)
   Inertia
  done clear
  D)
   Newton's third law of motion
  done clear
  View Answer play_arrow

• question_answer67)
  A body weights slightly more at the poles than at the equator because:
  A)
   The attractive force at the poles increases due to the ice cap
  done clear
  B)
   The earth is the flat at the poles
  done clear
  C)
   The earth has the maximum speed of rotation at the equator
  done clear
  D)
   None of these is a complete explanation
  done clear
  View Answer play_arrow

• question_answer68)
  In some arotic and alpine regions, the snow appears red. This 'red snow' phenomenon is caused by:
  A)
   Reflection of red light
  done clear
  B)
   Florescence
  done clear
  C)
   Growth of an alga
  done clear
  D)
   Growth of a red-flowered plant
  done clear
  View Answer play_arrow

• question_answer69)
  During elections, a permanent, chemical mark is put at the base of the nail of index finger while exercising your franchise. This mark is not seen after two months or so because:
  A)
   It is worn out by constant washing with soap and water.
  done clear
  B)
   Constant contact of the hands with hard water corrodes the mark
  done clear
  C)
   The formation of new nail, forcibly removes the old one.
  done clear
  D)
   It is gradually oxidised by tannin and caffein that we ingest in tea and coffee respectively.
  done clear
  View Answer play_arrow

• question_answer70)
  A person weighs more in a lift which is:
  A)
   Moving up with a constant velocity
  done clear
  B)
   Accelerating downward
  done clear
  C)
   Moving down with a constant velocity
  done clear
  D)
   Accelerating upward
  done clear
  View Answer play_arrow

• question_answer71)

  Which of the statements given below are correct with respect to fertilizers?

  I. Fertilizer-organic or inorganic material containing one or more of the nutrients-mainly nitrogen, phosphorus, and potassium, and other essential elements are required for plant growth.

  II. Added to the soil or other medium, fertilizers provide plants, nutrients that are naturally lacking or that have been removed by harvesting or grazing, or by physical processes such as leaching or erosion.

  III. Organic fertilizers include animal and green manure, fish and bone meal, and compost.

  IV. Micro-organisms in the soil decompose organic material, making its elements available for use by plants.

  V. Inorganic or artificial fertilizers (also called chemical or mineral fertilizers) are formulated in appropriate concentrations and combinations for various crops and growing conditions.

  Codes:
  A)
   I, II, III and V   
  done clear
  B)
   II, III and V
  done clear
  C)
   I and V only     
  done clear
  D)
   All the above
  done clear
  View Answer play_arrow

• question_answer72)
  Which one of the following wavelengths of light is most effective in photosynthesis?
  A)
   Blue                
  done clear
  B)
   green
  done clear
  C)
   Reflection         
  done clear
  D)
   yellow
  done clear
  View Answer play_arrow

• question_answer73)
  Petroleum mainly contains
  A)
   Aromatic hydrocarbons
  done clear
  B)
   Aliphatic hydrocarbons
  done clear
  C)
   Cycloalkane and aromatic
  done clear
  D)
   Inorganic compounds
  done clear
  View Answer play_arrow

• question_answer74)

  Consider the following sentences:

  1. In ordinary bulbs only 5% to 10% electrical energy is converted into light energy.

  2. Tungsten has very high melting point as \[3422{}^\circ C\] the filament of bulb is made of it.

  3. The mica has good electrical resistance.

  4. The electric bulb was first invented by Thomas Alva Edison. Which of the above statements are correct?

  A)
   1 and 3
  done clear
  B)
   3 and 4
  done clear
  C)
   All of these       
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer75)
  Potassium compound originally used in mixed fertilizers containing:
  A)
   Nitrogen and phosphorous
  done clear
  B)
   Nitrogen and potassium
  done clear
  C)
   Sulphur and calcium
  done clear
  D)
   Iron and magnesium
  done clear
  View Answer play_arrow

• question_answer76)
  Grey matter consists of:
  A)
   A large number of nerve fibres
  done clear
  B)
   A large number of nerve cell bodies
  done clear
  C)
   A large number of neurons
  done clear
  D)
   Neuroglia
  done clear
  View Answer play_arrow

• question_answer77)
  Pasteurization of milk involve heating for
  A)
   60 min at about \[90{}^\circ C\]
  done clear
  B)
   30 min at about \[50{}^\circ C\]
  done clear
  C)
   30 min at about \[65{}^\circ C\]
  done clear
  D)
   60 min at \[100{}^\circ C\]
  done clear
  View Answer play_arrow

• question_answer78)
  Half-cooked potatoes, if eaten with food, are not digested. This is because:
  A)
   Insufficient heat does not convert cellulose into starch
  done clear
  B)
   Starch granules in semi-cooked potatoes are coated with cellulose which, in turn, is not digested
  done clear
  C)
   Starch in semi-cooked potatoes is in insoluble form and fails to form a complex with the concerned enzyme
  done clear
  D)
   Starch granules in semi-cooked potatoes are coated with lignin which, in turn, is not digested
  done clear
  View Answer play_arrow

• question_answer79)
  The concept of chemical evolution is based on:
  A)
   Crystallization of chemicals
  done clear
  B)
   Interaction of water, air and clay under intense heat
  done clear
  C)
   Effect of solar radiation on chemicals
  done clear
  D)
   Possible origin of life by combination of chemicals under suitable environmental conditions
  done clear
  View Answer play_arrow

• question_answer80)
  Cancer is a deadly disease because it has the ugly potentials of:
  A)
   Showing cells either very large or extremely small
  done clear
  B)
   Rapid growth to form a tumour
  done clear
  C)
   Having no resemblance to the normal cells of a tissue or organ
  done clear
  D)
   Dissemination to vital organs
  done clear
  View Answer play_arrow

• question_answer81)
  Sucrose is a non-reducing sugar because
  A)
   Sucrose is a disaccharide
  done clear
  B)
   Aldehydes group of glucose is blocked
  done clear
  C)
   Kenotic group of fructose and aldehydic group of glucose are blocked
  done clear
  D)
   Kenotic group of fructose is blocked
  done clear
  View Answer play_arrow

• question_answer82)
  The ozone layer of the earth is useful for living beings because:
  A)
   It serves as the source of oxygen by decomposing air
  done clear
  B)
   It maintains the nitrogen cycle of the earth
  done clear
  C)
   It maintains the temperature of the earth
  done clear
  D)
   It protects them from excessive ultraviolet rays of the sun
  done clear
  View Answer play_arrow

• question_answer83)

  Components of gun powder are:

  (1) Charcoal

  (2) Potassium nitrate

  (3) Magnesium

  (4) Sulphur

  Codes:
  A)
   1, 4                 
  done clear
  B)
   2, 3, & 4
  done clear
  C)
   2 & 3  
  done clear
  D)
   1, 2, 4
  done clear
  View Answer play_arrow

• question_answer84)
  The deficiency of vitamin A causes:
  A)
   Hair to fall       
  done clear
  B)
   dysentery
  done clear
  C)
   Night blindness
  done clear
  D)
   weakness
  done clear
  View Answer play_arrow

• question_answer85)

  Consider the following statements in reference to the structure of atom.

  (1) Isotopes are the atoms of the same element having same atomic number but different mass number

  (2) Isobar are atoms of different elements having different atomic number but same mass number

  (3) Isotones are atoms of different elements having same number of neutrons

  A)
   Only 1 
  done clear
  B)
   Only 2
  done clear
  C)
   1, 2 and 3        
  done clear
  D)
   2 and 3
  done clear
  View Answer play_arrow

• question_answer86)
  Triple vaccine is administered to a new born child to immunize it against:
  A)
   Tetanus, diphtheria, measles and rubella
  done clear
  B)
   Whooping cough, tetanus and diphtheria
  done clear
  C)
   Whooping cough, tetanus and measles
  done clear
  D)
   Tetanus, diphtheria, smallpox and rubella
  done clear
  View Answer play_arrow

• question_answer87)
  Oil spreads over the surface of water because:
  A)
   Oil is more dense than water
  done clear
  B)
   Oil is less dense than water
  done clear
  C)
   Oil has more surface tension than water
  done clear
  D)
   Oil has less surface tension than water
  done clear
  View Answer play_arrow

• question_answer88)

  Consider the following statements:

  1. According to Kepler's first law, each planet moves in an elliptical orbit around the sun, the sun being at one of the foci of the ellipse.

  2. According to Kepler's second law, the radius vector of any planet relative to the sun sweeps out equal areas in equal times that is the areal velocity of the radius vector of the planet is constant. Which of the statement(s) given above is/are correct?

  A)
   Only 1 
  done clear
  B)
   Only 2
  done clear
  C)
   Both 1 and 2    
  done clear
  D)
   neither 1 nor 2
  done clear
  View Answer play_arrow

• question_answer89)
  The disease, sickle-cell anaemia, is caused by:
  A)
   Malarial infection
  done clear
  B)
   Iron deficiency
  done clear
  C)
   Poor hygiene    
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer90)
  On heating a circular metallic disc with a circular hole at the centre, the diameter of the hole will:
  A)
   Decrease
  done clear
  B)
   Remain the same
  done clear
  C)
   Increase
  done clear
  D)
   First increase, then decrease
  done clear
  View Answer play_arrow

• question_answer91)
  Food is cooked faster in a pressure cooker because:
  A)
   Heat cannot escape from the cooker
  done clear
  B)
   Steam is hotter than the boiling water
  done clear
  C)
   Due to high pressure the boiling point of water is raised
  done clear
  D)
   In the cooker water starts boiling at a lower temperature
  done clear
  View Answer play_arrow

• question_answer92)
  Drinks remain hot or cold for a long time in a thermos flask because of the
  A)
   Vacuum between the double walls
  done clear
  B)
   Presence of air, which is a bad conductor of heat in between the double walls
  done clear
  C)
   Silver coating on the inside of the double walls
  done clear
  D)
   combined effects of A and C
  done clear
  View Answer play_arrow

• question_answer93)
  A common florescent tube contains:
  A)
   Mercuric oxide and neon
  done clear
  B)
   Sodium vapour
  done clear
  C)
   Mercury vapour and an inert gas
  done clear
  D)
   Argon at low pressure
  done clear
  View Answer play_arrow

• question_answer94)
  The gland that contains the body's thermostat is:
  A)
   Thyroid
  done clear
  B)
   pituitary
  done clear
  C)
   Pineal  
  done clear
  D)
   hypothalamus
  done clear
  View Answer play_arrow

• question_answer95)
  Blood is formed in the human adult by the:
  A)
   Yellow bone marrow
  done clear
  B)
   heart
  done clear
  C)
   Red bone marrow
  done clear
  D)
   spleen
  done clear
  View Answer play_arrow

• question_answer96)
  Iron necessary for fee body, is abundantly found in:
  A)
   Egg                 
  done clear
  B)
   milk
  done clear
  C)
   Green vegetables
  done clear
  D)
   none of these
  done clear
  View Answer play_arrow

• question_answer97)
  When a cube of ice, floating on a water in a beaker melts, the level of water in the beaker:
  A)
   Rises               
  done clear
  B)
          Falls
  done clear
  C)
   Rises at first and then falls
  done clear
  D)
   Remains unchanged
  done clear
  View Answer play_arrow

• question_answer98)
  A fresh egg sinks in pure water but floats in salt water. This is because:
  A)
   Saline water is denser than pure water
  done clear
  B)
   Saline water is lighter than pure water
  done clear
  C)
   The viscosity of saline water is higher than that of pure water
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer99)
  A cricket player while taking a catch lowers his hands to:
  A)
   Increase time of impulse
  done clear
  B)
   Decrease time of impulse
  done clear
  C)
   Take catch safely
  done clear
  D)
   Increase the area of impact
  done clear
  View Answer play_arrow