Railways General Science & Technology Man Made Materials Sample Paper

done Man Made Materials-II Sample Test Paper-24 Total Questions - 20    [Download]

• question_answer1)
  Which one of the following is a mixed fertilizer?
  A)
   Urea    
  done clear
  B)
          CAM                           
  done clear
  C)
   Ammonium Sulphate
  done clear
  D)
   NPK
  done clear
  View Answer play_arrow

• question_answer2)
  When the fats are reacted with alkali, they form 'soaps'. The type of reaction taking place in the formation of soaps is called
  A)
   Emulsification
  done clear
  B)
          saponification
  done clear
  C)
   Halogenation    
  done clear
  D)
   oxidation
  done clear
  View Answer play_arrow

• question_answer3)

  Consider the following statements

  1. Hard soaps (common bar soaps) are the sodium salts of fatty acids.

  2.  Soft soaps are the potassium salts of fatty acids and semi-solid in nature

  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
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• question_answer4)

  Consider the following statements

  1. Hardness of water depends upon its soap consuming power.

  2. Temporary hardness is due to bicarbonates of magnesium and calcium.

  3. Permanent hardness of water is due to sulphate and/or chloride of calcium and magnesium.

  4. Permanent hardness can be removed by boiling.

  Which of the statements given above are correct?

  A)
   1, 2, 3 and 4    
  done clear
  B)
   1, 2 and 3
  done clear
  C)
   2 and 3
  done clear
  D)
   3 and 4
  done clear
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• question_answer5)
  Which of the following statements is not true for soap?
  A)
   Soaps are biodegradable.
  done clear
  B)
   Soaps cannot be used in acidic medium.
  done clear
  C)
   Soaps form a white curdy precipitate with hard water.
  done clear
  D)
   Soaps are relatively stronger in their cleansing action than synthetic detergents.
  done clear
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• question_answer6)
  Lime is sometimes applied to soil in order to
  A)
   Increase the acidity of soil
  done clear
  B)
   Increase the alkalinity of soil
  done clear
  C)
   Make the soil more porous
  done clear
  D)
   Restore nitrates of the soil
  done clear
  View Answer play_arrow

• question_answer7)
  Triple phosphate is a
  A)
   Mixed fertilizer
  done clear
  B)
   Nitrogenous fertilizer
  done clear
  C)
   Potash fertilizer
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer8)
  The commonly present elements in artificial fertilizers are
  A)
   Nitrogen, phosphorous and potassium
  done clear
  B)
   Nitrogen, phosphorus and sodium
  done clear
  C)
   Calcium, potassium and sodium
  done clear
  D)
   All elements of periodic table
  done clear
  View Answer play_arrow

• question_answer9)
  Which one of the following cannot be used as a nitrogenous fertilizer?
  A)
   \[CaC{{N}_{2}}\]        
  done clear
  B)
   \[N{{H}_{4}}N{{O}_{3}}\]
  done clear
  C)
   \[HN{{O}_{3}}\]         
  done clear
  D)
   \[N{{H}_{2}}CON{{H}_{2}}\]
  done clear
  View Answer play_arrow

• question_answer10)
  Which of the following is known as "muriate of potash"?
  A)
   \[KCI\] 
  done clear
  B)
   \[{{K}_{2}}S{{O}_{4}}\]
  done clear
  C)
   \[KN{{O}_{3}}\]         
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer11)
  Nodules with nitrogen fixing bacteria are present in
  A)
   Mustard           
  done clear
  B)
   Rice
  done clear
  C)
   Gram  
  done clear
  D)
   Cotton
  done clear
  View Answer play_arrow

• question_answer12)
  Which of the following nitrogenous fertilizers is not very effective in acidic soil?
  A)
   Ammonium sulphate
  done clear
  B)
   Urea
  done clear
  C)
   Nitrolium         
  done clear
  D)
   Calcium cyanamide
  done clear
  View Answer play_arrow

• question_answer13)
  Vitamin A is present in
  A)
   Cod liver oil
  done clear
  B)
   carrot
  done clear
  C)
   Milk                
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer14)
  Ascorbic acid is a
  A)
   Vitamin           
  done clear
  B)
   enzyme
  done clear
  C)
   Protein
  done clear
  D)
   carbohydrate
  done clear
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• question_answer15)
  The deficiency of vitamin \[{{B}_{1}}\] causes
  A)
   Beri-beri
  done clear
  B)
          Scurvy
  done clear
  C)
   Rickets 
  done clear
  D)
   Anaemia
  done clear
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• question_answer16)
  The deficiency of vitamin-C causes
  A)
   Scurvy
  done clear
  B)
   Rickets
  done clear
  C)
   Pyorrhoea        
  done clear
  D)
   Pernicious Anaemia
  done clear
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• question_answer17)
  Deficiency of which vitamin causes rickets
  A)
   Vitamin-D        
  done clear
  B)
   Vitamin-B
  done clear
  C)
   Vitamin-A        
  done clear
  D)
   Vitamin-K.
  done clear
  View Answer play_arrow

• question_answer18)
  The best source of vitamin A is
  A)
   Beans  
  done clear
  B)
   Pulses
  done clear
  C)
   Orange
  done clear
  D)
   Carrot
  done clear
  View Answer play_arrow

• question_answer19)
  Which one of the following vitamins is soluble in water
  A)
   Vitamin-B        
  done clear
  B)
   Vitamin-E
  done clear
  C)
   Vitamin-K        
  done clear
  D)
   Vitamin-A
  done clear
  View Answer play_arrow

• question_answer20)
  Toilet soap is a mixture of
  A)
   Calcium salt of fatty acids
  done clear
  B)
   Potassium salt of fatty acids
  done clear
  C)
   Fatty acids and alcohol
  done clear
  D)
   Phenol and olive oil
  done clear
  View Answer play_arrow