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MCQs

Total Questions : 20 | Page 2 of 2 pages
Question 11. . Yeast and mould count determination requires-
  1.    nutrient agar
  2.    acidified potato glucose agar
  3.    MacConkey agar
  4.    violet Red Bile agar
 Discuss Question
Answer: Option B. -> acidified potato glucose agar
Question 12. . The time temperature combination for HTST aterurization of 71.1°C for 15 sec is selected on the basis of
  1.    Coxiella Burnetii
  2.    E. coli
  3.    B. subtilis
  4.    C. botulinum
 Discuss Question
Answer: Option A. -> Coxiella Burnetii
Question 13. .  Aerobic Colony Count (ACC), is also known as
  1.    Total viable count (TVC)
  2.    Aerobic plate count (APC)
  3.    Standard plate count (SPC)
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 14. .  Which of the following is true about ISO 2002 method for Salmonella detection?
  1.    Selenite cystine (SC) broth is replaced by Muller Kauffmann tetrathionate novobiocin broth (MKTTn)
  2.    Rappaport Vassiliadis (RV) broth has been replaced by Rappaport Vassiliadis Soya (RVS) broth
  3.    XLD is the first isolation medium rather than BGA
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 15. .  Suspected colonies of Staphylococcus aureus when grown on Baird-Parker medium shall show
  1.    coagulase activity
  2.    protease activity
  3.    catalase activity
  4.    none of these
 Discuss Question
Answer: Option A. -> coagulase activity
Question 16. . A psychrophilic halophile would be a microbe that prefers
  1.    cold temperatures and increased amounts of salt
  2.    warm temperatures and increased amounts of pressure
  3.    cold temperatures and the absence of oxygen
  4.    warm temperatures and increased amounts of acid
 Discuss Question
Answer: Option A. -> cold temperatures and increased amounts of salt
Question 17. . NaCl can act as
  1.    antagonist at optimal concentrations
  2.    synergistically if added in excess of optimum level
  3.    Both (a) and (b)
  4.    None of the above
 Discuss Question
Answer: Option C. -> Both (a) and (b)
Question 18. .  Suspected colonies of Staphylococcus aureus when grown on Baird-Parker medium shall show
  1.    coagulase activity
  2.    protease activity
  3.    catalase activity
  4.    none of these
 Discuss Question
Answer: Option A. -> coagulase activity
Question 19. . NaCl can act as
  1.    antagonist at optimal concentrations
  2.    synergistically if added in excess of optimum level
  3.    Both (a) and (b)
  4.    None of the above
 Discuss Question
Answer: Option C. -> Both (a) and (b)
Question 20. . A psychrophilic halophile would be a microbe that prefers
  1.    cold temperatures and increased amounts of salt
  2.    warm temperatures and increased amounts of pressure
  3.    cold temperatures and the absence of oxygen
  4.    warm temperatures and increased amounts of acid
 Discuss Question
Answer: Option A. -> cold temperatures and increased amounts of salt

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