Jigitsha - Set 11

64 Questions | Total Attempts: 65

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Jigitsha - Set 11 - Quiz

A revision for earlier modules before starting off a new session ! Best of Luck and Happy Learning !


Questions and Answers
  • 1. 
    The automatic temperature compensation (ATC) in a pH meter corrects for the change in mV per pH unit generated by the glass electrode as defined by the
    • A. 

      A) Henry's law

    • B. 

      B) Nernst equation

    • C. 

      C) Charles's law

    • D. 

      D) None of the above

  • 2. 
    A ___________________ is used to remove the carbon dioxide created after cation exchange when the water contains a significant concentration of bicarbonate.
    • A. 

      A) Cation Tower

    • B. 

      B) Anion Tower

    • C. 

      C) Degassifier

    • D. 

      D) MB Tower

  • 3. 
    Which type of fire extinguisher can be use to extinguish fires of A, B, C, D and E types?
    • A. 

      A) Foam type

    • B. 

      B) Dry Powder type

    • C. 

      C) Wet chemical type

    • D. 

      D) CO2 extiguishers

  • 4. 
    Typically, activated carbons used in water treatment have iodine numbers ranging from
    • A. 

      A) > 1500

    • B. 

      B) 200 to 500

    • C. 

      C) 600 to 1100

    • D. 

      D) None of the above

  • 5. 
    Ion Exchange Resins are generally insoluble polymeric materials manufactured using suspension polymerisation using __________________________ that carry ion exchangeable functional groups.
    • A. 

      A) Benzene and Styrene

    • B. 

      B) Styrene and Divinylbenzene

    • C. 

      C) Saccharin and Styrene

    • D. 

      D) None of the above

  • 6. 
    Due to electrical short circuit, the electical panel got heated up and fire broke out. To extinguish the fire, you will have to use -
    • A. 

      A) Water based fire extinguishers

    • B. 

      B) Foam based fire extinguishers

    • C. 

      C) Wet chemical based fire extinguishers

    • D. 

      D) CO2 or Dry powder based fire extinguishers

  • 7. 
    The term 'whisky' means
    • A. 

      A) Water of love

    • B. 

      B) Water of luck

    • C. 

      C) Water of life

    • D. 

      D) None of the above

  • 8. 
    The pH of Demineralised water used for blending should be in the range of (as per ABD Manual)
    • A. 

      A) 5.5 - 6.5

    • B. 

      B) 5.9 - 6.5

    • C. 

      C) 6.0 - 6.5

    • D. 

      D) 5.9 - 6.4

  • 9. 
    PRT refers to -
    • A. 

      A) Permanganate Residence Time

    • B. 

      B) Permanganate reaction Time

    • C. 

      C) Potassium reaction time

    • D. 

      D) Potassium reaction test

  • 10. 
    For PRT analysis, place ______ml of the material in the cylinder, bring the temperature to _____°C by placing the cylinder in cold water, add _____ml of standard permanganate solution by means of a 1-ml pipette noting down the exact time as soon as addition is over. Mix the contents at once and keep the cylinder at 15 to 16°C and away from bright light. The material shall be taken to have satisfied the test if the pink colour does not disappear up to _____min.
    • A. 

      A) 10, 20, 0.5, 15

    • B. 

      B) 20, 15, 1, 30

    • C. 

      C) 20, 15, 0.5, 30

    • D. 

      D) 10, 15, 1, 30

  • 11. 
    Type of Caramel used for blending
    • A. 

      A) Type I

    • B. 

      B) Type II

    • C. 

      C) Type III

    • D. 

      D) Type IV

  • 12. 
    In DM plant, Cation is recharged using __________________where as Anion is recharged using _________________ (in sequence)
    • A. 

      A) Caustic, Hydrochloric Acid

    • B. 

      B) Acid, Alkali

    • C. 

      C) Water, Acid

    • D. 

      D) Alcohol, Water

  • 13. 
    In Cation exchange unit, if the pH of water is more than ___________, it means that the plant is exhausted and recharging is required immediately. If pH is less than ____________, it means rinsing is not done properly and proper rinsing is required till the required pH is obtained.
    • A. 

      A) 4,5, 3.5

    • B. 

      B) 5.5, 2.5

    • C. 

      C) 6.5, 3.5

    • D. 

      D) 4.5, 2.5

  • 14. 
    The purpose of using PVC/ Polypropylene pall rings inside the degasser column is to
    • A. 

      A) Remove any off flavours in water

    • B. 

      B) The packing breaks up the water flowing down creating greater surface area

    • C. 

      C) Absorbs the Carbon di oxide gas present in water

    • D. 

      D) To maintain the pH of the water

  • 15. 
    When Silver nitrate solution is added into raw water, it creates a white precipitate, which is actually
    • A. 

      A) Silver Chloride

    • B. 

      B) Silver Sulphite

    • C. 

      C) Calcium nitrate

    • D. 

      D) Magnesium chloride

  • 16. 
    Curing of PVC pipes is done using -
    • A. 

      A) 1% Hydrochloric acid solution with 0.5% Sodium thiosulphate solution

    • B. 

      B) 2.5% NaOH solution and 1% Sodium Chloride solution

    • C. 

      C) Alcohol 70% v/v

    • D. 

      D) Water with 5% Potassium permanganate

  • 17. 
    The full form of ROPP is
    • A. 

      A) Ride On Pilfer Proof

    • B. 

      B) Roll On Pilfer Proof

    • C. 

      C) Right On Pilfer Proof

    • D. 

      D) Rolling On Pilfer Proof

  • 18. 
    The full form of BOPP is
    • A. 

      A) Biaxially Oriented Poly Propylene

    • B. 

      B) Bi auxiliary Ornamented Poly Propylene

    • C. 

      C) By acidentally Oriented Poly Propylene

    • D. 

      D) None of the above

  • 19. 
    For calibration of turbidity meter, a solution is used at various proportions, which is called Formazin solution. It is actually a combination of two chemicals, which are -
    • A. 

      A) hydrazine sulfate and hexamethylene tetramine

    • B. 

      B) Hydrazium sulfate and hexane

    • C. 

      C) Hydrogen peroxide and hexamethylene tetramine

    • D. 

      D) None of the above

  • 20. 
    Grain direction of labels should be -
    • A. 

      A) Perpendicular to the the width of label

    • B. 

      B) Parallel to the width of label

    • C. 

      C) Parallel to the height of label

    • D. 

      D) None of the above

  • 21. 
    PET stands for -
    • A. 

      A) Poly prolylene terepthalete

    • B. 

      B) Poly ethylene tetrapolate

    • C. 

      C) Poly ethylene terephthalate

    • D. 

      D) None of the above

  • 22. 
    The hardness of water is mainly due to the presence of salts of -
    • A. 

      A) Sodium and Potassium

    • B. 

      B) Sodium and Magnesium

    • C. 

      C) Calcium and Magnesium

    • D. 

      D) None of the above

  • 23. 
    The full form of FSSAI is
    • A. 

      A) Food Safety and Standards Act, India

    • B. 

      B) Food Safety and Standards Act of India

    • C. 

      C) Food Safety Act and Standards Authority, India

    • D. 

      D) Food Safety and Standards Authority of India

  • 24. 
    In FSSAI License Numbers, the total no of digits is -
    • A. 

      A) 12

    • B. 

      B) 13

    • C. 

      C) 16

    • D. 

      D) 14

  • 25. 
    Passivation is
    • A. 

      A) a post fabricated cleaning and corrosion resistance enhancement processes.

    • B. 

      B) a process to clean the metallic and inorganic contaminants from the stainless steel surface

    • C. 

      C) a process which helps in formation of thin transparent oxide layer that protects the stainless steel from selective oxidation (corrosion)

    • D. 

      D) All of the above

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