MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Fermentation Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Tyrothricin is an anti-oxidant. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The pH of the combination of ammonium persulphate and phosphoric acid is more effective than acid lower pH lower than 2.2. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Who studied the effects of acid washing on 16 yeast strains? |
| A. | Fernandez et al. |
| B. | Simpsom and Hammond |
| C. | Jackson |
| D. | Ogden |
| Answer» C. Jackson | |
| 4. |
Which of the following antibiotics is suitable for the use in dairy industries? |
| A. | Streptomycin |
| B. | Gentamicin |
| C. | Tyrothricin |
| D. | Bacteriocin nisin |
| Answer» E. | |
| 5. |
Who proposed the use of polymyxin B? |
| A. | Gray |
| B. | Kazin |
| C. | Lyon |
| D. | Ogden |
| Answer» D. Ogden | |
| 6. |
Which of the following bacteria is responsible for the development of potential carcinogens? |
| A. | <i>Lactobacillus acidophilus</i> |
| B. | <i>Enterobacter agglomerans</i> |
| C. | <i>Obesumbacterium proteus</i> |
| D. | <i>Pediococcus halophilus</i> |
| Answer» D. <i>Pediococcus halophilus</i> | |
| 7. |
The rheological properties of yeast slurry fit in ___________ |
| A. | Bingham pseudoplastic rheology |
| B. | Dilatant rheology |
| C. | Casson body rheology |
| D. | Pseudoplastic rheology |
| Answer» B. Dilatant rheology | |
| 8. |
What is the function of the microbiological filter? |
| A. | Preventing the larger molecules to pass |
| B. | Control of attemperation |
| C. | Maintenance of hygiene |
| D. | Maintaining water supply |
| Answer» D. Maintaining water supply | |
| 9. |
The attemperation in slurry form is assisted by ______________ |
| A. | Baffles |
| B. | Agitator |
| C. | Sparger |
| D. | Stirrer |
| Answer» C. Sparger | |
| 10. |
The yeast storage is made of _____________ |
| A. | Iron |
| B. | Glass |
| C. | Wood |
| D. | Stainless steel |
| Answer» E. | |
| 11. |
Which of the following is not an advantage of storing yeast as a slurry? |
| A. | The risk of infection is controlled |
| B. | Transportation via pumping |
| C. | Attemperation is simple |
| D. | It is a cheap technique |
| Answer» E. | |
| 12. |
Prolonged storage of yeast as a cake may lead to _________________ |
| A. | Autolysis |
| B. | Radiolysis |
| C. | Oncolysis |
| D. | Hemolysis |
| Answer» B. Radiolysis | |
| 13. |
Which of the following difficulty arises when yeast is stored as a pressed cake? |
| A. | Pressure control |
| B. | Foam control |
| C. | Dissolved oxygen control |
| D. | Temperature control |
| Answer» E. | |
| 14. |
The yeast cake is stored in the refrigerator at _________ |
| A. | 5 7 C |
| B. | 2 4 C |
| C. | 6 8 C |
| D. | 8 10 C |
| Answer» C. 6 8 C | |