4th Class General Knowledge Science and Technology Question Bank

done Science and Technology Total Questions - 35

• question_answer1)
  Who invented the BALLPOINT PEN?
  A)
   Biro Brothers  done clear
  B)
               Waterman Brothers done clear
  C)
   Bicc Brothers       done clear
  D)
         Wright Brothers done clear
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• question_answer2)
  Who invented Jet Engine?
  A)
   Sir Frank Whittle        done clear
  B)
   Gottlieb balmier done clear
  C)
   Roger Bacon        done clear
  D)
            Lewis E. Waterman done clear
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• question_answer3)
  Who invented Gramophone?
  A)
   Michael Faraday done clear
  B)
   Fahrenheit done clear
  C)
   Sir Alexander Graham Bell    done clear
  D)
   Thomas Alva Edison  done clear
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• question_answer4)
  Who invented Electric Generator?
  A)
   Sir Alexander Graham Bell done clear
  B)
   Michael Faraday done clear
  C)
   Alfred B. Nobel done clear
  D)
   Thomas Alva Edison done clear
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• question_answer5)
  Who invented Bifocal Lens?
  A)
   Alfred B. Nobel  done clear
  B)
   Thomas Alva Edison done clear
  C)
   Benjamin Franklin done clear
  D)
   Rudolf Diesel    done clear
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• question_answer6)
  Who invented Bicycle?
  A)
   Leo H Baekeland       done clear
  B)
   Karl Benz done clear
  C)
   Evangelista Torricelli                done clear
  D)
   Kirkpatrick Macmillan done clear
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• question_answer7)
  What Sir Isaac Newton invented?
  A)
   Reflecting telescope    done clear
  B)
   Chronometer  done clear
  C)
   Microscope          done clear
  D)
         Spectacles done clear
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• question_answer8)
  On adding salt to water while boiling daal, the boiling point of water gets ___
  A)
   increased    done clear
  B)
   decreased done clear
  C)
   remains the same done clear
  D)
          none of these done clear
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• question_answer9)
  Which one of the following scatters more light?
  A)
   Violet               done clear
  B)
   Blue             done clear
  C)
   Red                  done clear
  D)
   Both [A] and [B] done clear
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• question_answer10)
  Ice is ____ than water but _____than alcohol.
  A)
   heavier, lighter done clear
  B)
   lighter, heavier     done clear
  C)
   hard, soft             done clear
  D)
         none of these done clear
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• question_answer11)
  State of matter with fixed volume which can be compressed slightly is
  A)
   solid                 done clear
  B)
   liquid done clear
  C)
   gas                   done clear
  D)
   all of Above done clear
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• question_answer12)
  Particles of gas are
  A)
   randomly arranged    done clear
  B)
   far apart done clear
  C)
   freely moving       done clear
  D)
         all of Above done clear
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• question_answer13)
  Metals can be hammered into different shapes and drawn into wires, hence they are
  A)
   soft                  done clear
  B)
   malleable done clear
  C)
   strong               done clear
  D)
   weaker done clear
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• question_answer14)
  Name the particles which make up matter?
  A)
   Non-metals    done clear
  B)
   Metals done clear
  C)
   Metalloids      done clear
  D)
   Atoms done clear
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• question_answer15)
  Which of the following is the property of solid?
  A)
   Can be compressed done clear
  B)
   Have definite shape done clear
  C)
   Have low density done clear
  D)
   Intermolecular force is less done clear
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• question_answer16)
  What James Watt invented?
  A)
   Diving bell done clear
  B)
   Steam boat     done clear
  C)
   Hot air balloon done clear
  D)
   Rotary steam engine done clear
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• question_answer17)
  What Galileo invented?
  A)
   Barometer     done clear
  B)
   Pendulum clock done clear
  C)
   Microscope     done clear
  D)
          Thermometer done clear
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• question_answer18)
  Who had an explosive idea and first patented DYNAMITE?
  A)
   J. R. Gluber    done clear
  B)
   A. Nobel        done clear
  C)
   G. Fawks       done clear
  D)
   W. Bickford done clear
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• question_answer19)
  Which insurance salesman invented the fountain pen in 1884?
  A)
   Lewis Edson Waterman   done clear
  B)
   Sir William Grove done clear
  C)
   Charles Kettering done clear
  D)
                    George Fountain done clear
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• question_answer20)
  What Elisha Otis invented?
  A)
  The brake used in modern elevators done clear
  B)
   Jet Engine done clear
  C)
   Turbine done clear
  D)
   Hydraulic Crane done clear
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• question_answer21)
  What Kart Benz invented?
  A)
   Gasoline powered automobile        done clear
  B)
   Motorcar done clear
  C)
   Glider  done clear
  D)
   Steam turbine done clear
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• question_answer22)
  Who invented the first controllable flying AEROPLANE (AIRPLANE)
  A)
   Wright Brothers done clear
  B)
   Lidenbergh Brothers done clear
  C)
   South Brothers done clear
  D)
   West Brothers done clear
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• question_answer23)
  Which gas is released by plants at night?
  A)
   Oxygen done clear
  B)
          Nitrogen done clear
  C)
   Carbon dioxide done clear
  D)
   Hydrogen done clear
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• question_answer24)
  From a smooth shiny surface, the rays of light are _____ back before they enter to our eyes.
  A)
   refracted           done clear
  B)
   reflected      done clear
  C)
   scattered           done clear
  D)
   dispersed done clear
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• question_answer25)
  Fat person ______ more water than thin person.
  A)
   replaces            done clear
  B)
   absorbs         done clear
  C)
   replaces       done clear
  D)
   none of these done clear
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• question_answer26)
  Choose the incorrect match
  A)
   Jet Engine - Whittle                done clear
  B)
   Gravity ? Newton done clear
  C)
   Dynamo ? Galileo done clear
  D)
                       Diesel Engine - Rudolf Diesel done clear
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• question_answer27)

  Statement-A: The fat person deplaces more water.

  Statement-B: Ice is lighter than water.

  A)
   Statement A is true, B is false       done clear
  B)
   Statement B is true, A is false done clear
  C)
   Both are true        done clear
  D)
                 Both are false done clear
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• question_answer28)
  Match the following.

  Film	1. Otis
  Lift	2. Torricelli
  Printing machine	3. Forest
  Barometer	4. Barg

  A)
   A-4;     B-3; C-2; D-1                  done clear
  B)
   A-3;     B-1; C-4; D-2 done clear
  C)
   A-2;     B-4; C-1; D-2                  done clear
  D)
   None of these done clear
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• question_answer29)

  Statement-A: Plants respire at night and give out carbon dioxide.

  Statement-B: It is dangerous to sleep under trees in morning.

  A)
   Statement a is true, b is false       done clear
  B)
   Statement b is true, a is false done clear
  C)
   Both are true         done clear
  D)
                 Both are false done clear
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• question_answer30)
  This machine is used in hospitals to produce photographs of bone which can be checked which was discovered by
  A)
   Marie Curie    done clear
  B)
   Van Lue         done clear
  C)
   Becquerel      done clear
  D)
   Roentgen done clear
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• question_answer31)
  Many inventors invented light bulbs, but it was him who invented an incandescent bulb that could burn for a long time. He was also the first inventor to be awarded a patent for this invention. Identify him.
  A)
   SameuI Morse                     done clear
  B)
   Alexander Graham Bell done clear
  C)
   Thomas Alva Edison                done clear
  D)
   John Logic Baird done clear
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• question_answer32)
  The man in the given picture was a mathematician and physicist. The idea of gravity came to him when an apple fell on his head while sitting under an apple tree. Who was this famous scientist?
  A)
   Carl Edward Sagan done clear
  B)
   Sir Isaac Newton done clear
  C)
   Charles Darwin    done clear
  D)
        Albert Einstein done clear
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• question_answer33)
  These brothers became the inventors of the world's first successful aeroplane when they took off on a very short flight from Kitty Hawk. USA, in 1903. Who were they?
  A)
   Alfred Wallace  done clear
  B)
   Wilbur and Orville Wright done clear
  C)
   Lamarck done clear
  D)
   None of these done clear
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• question_answer34)
  The body of this instrument is made of plastic or metal. It has eye pieces at one end. The other end has power lenses. With it you can view objects that are far away. What is this scientific instrument called?
  A)
   Microscope            done clear
  B)
   Kaleidoscope done clear
  C)
   Magnifying glass  done clear
  D)
        Binoculars done clear
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• question_answer35)
  He was a Scottish engineer, who demonstrated the first working television system 1926. He was the inventor of both the first publicly demonstrated colour television system, and the first purely electronic colour television picture tube. Who was he?
  A)
   Charles Darwin    done clear
  B)
        Douglas Engelbart done clear
  C)
   John Logie Baird done clear
  D)
         Samuel Morse done clear
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