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Home Biotechnology Beer and Wine Comments

  • Question
  • Punching down is done


  • Options
  • A. for the same reasons as pumping over
  • B. to extract tannin
  • C. both (a) and (b)
  • D. to keep the cap dry

  • Correct Answer
  • to keep the cap dry 


  • Beer and Wine problems


    Search Results


    • 1. What temperature is maintained during anaerobic fermentation of red wine?

    • Options
    • A. 20-24 °C
    • B. 24-27 °C
    • C. 27-31 °C
    • D. 31-34 °C
    • Discuss
    • 2. The yeast generated during the fermentation of beer is generally separated by

    • Options
    • A. centrifugation
    • B. filtration
    • C. cell disruption
    • D. all of these
    • Discuss
    • 3. Bock beer is prepared from

    • Options
    • A. roasted germinated barley seeds
    • B. rice
    • C. wheat
    • D. grapes
    • Discuss
    • 4. Wort is boiled with the hops

    • Options
    • A. to help in protein coagulation
    • B. to provide bitter taste and flavour to the beer
    • C. to help in the coagulation of tannins
    • D. All of the above
    • Discuss
    • 5. Wort is

    • Options
    • A. an aqueous extract of malt
    • B. malted barley
    • C. coagulated protein obtained during boiling
    • D. none of the above
    • Discuss
    • 6. Malolactic fermentation

    • Options
    • A. produces lactic acid
    • B. reduces total acidity
    • C. produces diacetyl
    • D. all of these
    • Discuss
    • 7. Sherry is a type of

    • Options
    • A. wine
    • B. beer
    • C. brandy
    • D. none of these
    • Discuss
    • 8. Fining a wine is defined as

    • Options
    • A. adding one substance to remove another
    • B. removing small particles
    • C. adding acid
    • D. removing tannin
    • Discuss
    • 9. Wine yeast

    • Options
    • A. is sensitive to sulphur di oxide
    • B. is resistant to sulphur di oxide
    • C. shows enhanced enzyme production in presence of sulphur di oxide
    • D. none of the above
    • Discuss
    • 10. A hydrometer

    • Options
    • A. measures wine acid
    • B. requires a few drops of juice
    • C. measures alcohol in the wine
    • D. measures grape sugar
    • Discuss


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