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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Statement 1: Freezing to temperatures of -20 deg C or lower reduces the radiation effects in the food.Statement 2: Sensitizing compounds or microorganisms to radiation will help fasten the process and make it more efficient. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 2. |
Statement 1: The microbial deterioration of fresh fish is _____ by irradiation.Statement 2: The _____ of oxygen increases the sensitivity of vegetative bacteria to irradiation by two-three folds. |
| A. | Increased, presence |
| B. | Decreased, absence |
| C. | Increased, absence |
| D. | Decreased, absence |
| Answer» B. Decreased, absence | |
| 3. |
Viruses can be eliminated by irradiation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Low dose irradiation has a potential to extend the shelf-life of certain food items but very low doses shows predominant mold formation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
With respect to which of the following properties of food does food irradiation prove a disadvantage? |
| A. | Flavor |
| B. | Tenderness |
| C. | Microbial growth |
| D. | All of the mentioned |
| Answer» B. Tenderness | |
| 6. |
Statement 1: Very young chickens can also be irradiated. This is an advantage of irradiation.Statement 2: Which of the following is an example of ionizing radiation as a unit operation in the field of food and agriculture? |
| A. | False, Synthesis of vitamin C |
| B. | False, Aging of wines |
| C. | False, Increasing the yield of crops |
| D. | All of the mentioned |
| Answer» E. | |
| 7. |
Statement 1: Plastic films and other foils might get damaged due to irradiation.Statement 2: By increasing the radiation dose by a two-fold, the resistance of certain organisms to irradiation increases. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 8. |
Statement 1: Radiation has no influence in promoting tin rot or tin disease.Statement 2: Tin coatings over base steel are suitable for food irradiation. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 9. |
Statement 1: Radiation sterilization might be used for baking since it indicates that the baking quality of eggs is not impaired during doses of ionizing radiations.Statement 2: Enzymes are _____ by ionizing radiations. |
| A. | True, activated |
| B. | True, inactivated |
| C. | False, no change observed |
| D. | All of the mentioned |
| Answer» C. False, no change observed | |
| 10. |
Statement 1: Effects of radiation and heat are the same on milk; that is they both influence the rennet coagulation time.Statement 2: _____ balance is important in condensing and canning process. |
| A. | True, Water |
| B. | True, Calcium |
| C. | False, Fat |
| D. | False, Calcium |
| Answer» C. False, Fat | |