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MCQs

Total Questions : 29 | Page 2 of 3 pages
Question 11. The micro-organism which is present in both fresh and frozen juices is
  1.    None of these
  2.    Entereobacter aerogenes
  3.    P. chrysogenum
  4.    E. coli
 Discuss Question
Answer: Option B. -> Entereobacter aerogenes
Question 12. Saprophytic bacteria cause
  1.    sliminess or souring in piled, wet and heating vegetables
  2.    bacterial soft rot
  3.    brown rot in vegetables
  4.    black rot in fruits
 Discuss Question
Answer: Option A. -> sliminess or souring in piled, wet and heating vegetables
Question 13.  Black mold rot is caused by
  1.    A.flavus
  2.    A. niger
  3.    Trichoderma
  4.    Trichothecium roseum
 Discuss Question
Answer: Option B. -> A. niger
Question 14.  Concentrate of fruits and vegetable juices
  1.    favor the growth of A. niger and A. flavus species
  2.    favour the growth of yeast and of acid and sugar tolerant Leuconostoc and Lactobacillus species
  3.    favor the growth of Saprophytic bacteria
  4.    none of the above
 Discuss Question
Answer: Option B. -> favour the growth of yeast and of acid and sugar tolerant Leuconostoc and Lactobacillus species
Question 15.  Watery soft rot is found mostly in
  1.    fruits
  2.    vegetables
  3.    cereals
  4.    all of these
 Discuss Question
Answer: Option B. -> vegetables
Question 16.  The predominant micro-organisms in frozen foods are
  1.    bacteria
  2.    micro-coccus
  3.    yeast and moulds
  4.    none of these
 Discuss Question
Answer: Option C. -> yeast and moulds
Question 17.  Yeast are most likely to grow in frozen fruits during
  1.    slow thawing
  2.    refrigeration
  3.    ambient temperature
  4.    none of these
 Discuss Question
Answer: Option A. -> slow thawing
Question 18.  Stem and rots caused by species of molds involve
  1.    leaves of fruits
  2.    stem ends of fruits
  3.    spotting on vegetables
  4.    spotting on fruits
 Discuss Question
Answer: Option B. -> stem ends of fruits
Question 19.  Anthracnose is a defect which can be observed as
  1.    spotting of leaves
  2.    spotting of seedpods
  3.    spotting of fruits
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Question 20. . The micro-organism which is present in both fresh and frozen juices is
  1.    E. coli
  2.    Entereobacter aerogenes
  3.    P. chrysogenum
  4.    None of these
 Discuss Question
Answer: Option B. -> Entereobacter aerogenes

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