MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Which of the following is true with respect to irradiation for fresh fish? |
| A. | The odor caused by volatile formed in irradiated fresh fish decreases with storage time if the product is packed in a gas permeable container |
| B. | The expected shelf life at a given storage temperature would depend on the radiation dose |
| C. | None of the mentioned |
| D. | Neither of the mentioned |
| Answer» B. The expected shelf life at a given storage temperature would depend on the radiation dose | |
| 4. |
Viruses can be eliminated by irradiation. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
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 | |
| 6. |
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 | |
| 7. |
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. | |
| 8. |
Which of the following is important in estimating decimal reduction dose (D value)? |
| A. | Observations made in the food itself |
| B. | Desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significance |
| C. | Observations made in the food itself and desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significance |
| D. | Neither of the mentioned |
| E. | ?a) Observations made in the food itselfb) Desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significancec) Observations made in the food itself and desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significanced) Neither of the mentioned |
| Answer» D. Neither of the mentioned | |
| 9. |
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 | |
| 10. |
Container shape plays an important role for radiation source utilization. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
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 | |
| 12. |
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 | |
| 13. |
Ionizing radiation _____ the thickness of albumin. |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | None of the mentioned |
| Answer» C. Remains constant | |
| 14. |
Irradiation _____ the relative viscosity of albumin in solutions. |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | None of the mentioned |
| Answer» B. Decreases | |
| 15. |
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 | |