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Home Biotechnology Beer and Wine Comments

  • Question
  • Sodium or potassium meta bi sulphate is added to crushed grapes to


  • Options
  • A. enhance the flavouring compound
  • B. check the undesirable organisms
  • C. maintain pH
  • D. all of the above

  • Correct Answer
  • check the undesirable organisms 


  • Beer and Wine problems


    Search Results


    • 1. Grist is

    • Options
    • A. coarse powder obtained after milling of malted barley
    • B. an aqueous extract of malt
    • C. malted barley
    • D. coagulated protein obtained during boiling
    • Discuss
    • 2. If a winemaker wanted to make a deeply colored red wine, which of the following should not be done?

    • Options
    • A. Bleed off juice prior to fermenting on skins
    • B. Ferment at a high temperature
    • C. Use whole clusters
    • D. Punch down at least once a day
    • Discuss
    • 3. The crushed grapes are known as

    • Options
    • A. malt
    • B. must
    • C. wort
    • D. sonti
    • Discuss
    • 4. Which is not correct about blush wines?

    • Options
    • A. They are stored in barrels
    • B. They are bottled within a year
    • C. They are usually slightly sweet
    • D. They are fermented in stainless steel
    • Discuss
    • 5. In a hot climate, grapes lose acidity because

    • Options
    • A. enough tartaric acid is not made
    • B. enough malic acid is not made
    • C. of break down of malic acid
    • D. of break down of tartaric acid
    • Discuss
    • 6. Wort is

    • Options
    • A. an aqueous extract of malt
    • B. malted barley
    • C. coagulated protein obtained during boiling
    • D. none of the above
    • Discuss
    • 7. 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
    • 8. Bock beer is prepared from

    • Options
    • A. roasted germinated barley seeds
    • B. rice
    • C. wheat
    • D. grapes
    • Discuss
    • 9. 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
    • 10. 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


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