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. |
What change does ionizing radiation produce in milk casein? |
| A. | Increase in rennet coagulation |
| B. | Reduction of its stability to heat |
| C. | Increase in rennet coagulation & Reduction of its stability to heat |
| D. | Neither of the mentioned |
| Answer» D. Neither of the mentioned | |
| 2. |
Ion pair production by ionizing radiations is more efficient than the thermal process. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Statement 1: When matter is traversed by any of the forms of ionizing radiations, _____Statement 2: Ionization radiations produce _____ |
| A. | Energy is absorbed, negligible temperature rise |
| B. | Ion pairs are not produced, chemical changes in irradiated materials |
| C. | Energy is absorbed, chemical changes in irradiated materials |
| D. | Neither of the mentioned, neither of the mentioned |
| Answer» B. Ion pairs are not produced, chemical changes in irradiated materials | |
| 4. |
Statement 1: It is safe to consume radiation stabilized food processed with gamma photons of less than 2.3 M electron volt.Statement 2: Provisions must be made to limit neutron fluxes in all radiation sources. |
| A. | True, False |
| B. | True, True |
| C. | False, False |
| D. | False, True |
| Answer» C. False, False | |
| 5. |
Which of the following is given by the Herschman Equation? |
| A. | Maximum radioactivity which cannot be produced in a foodstuff which has been isotope formed |
| B. | Percentage composition of food in regard to isotope’s parent atom |
| C. | All of the mentioned |
| D. | Neither of the mentioned |
| Answer» C. All of the mentioned | |
| 6. |
Statement 1: _____ induce radioactivity in food items.Statement 2: Variations in dose distributions in many types of containers and with all types of sources range between 100-125%. |
| A. | Protons, False |
| B. | Electrons, False |
| C. | Neutrons, True |
| D. | Any of the mentioned, True |
| Answer» D. Any of the mentioned, True | |
| 7. |
Which of the following is true about ferrous sulphate dosimeter? |
| A. | It is the most standard dosimeters. Radiation ionizes water forming H20+. This dissociates into OH- and H+ ion |
| B. | The formation of Fe+++ is the key effect which permits the determination of the radiation dose |
| C. | Determination of ferric ion concentration gives a direct measure of energy absorbed |
| D. | All of the mentioned |
| Answer» E. | |
| 8. |
Which of the following is a production control dosimeter? |
| A. | Cobalt glass |
| B. | Colored plastic tapes |
| C. | Ferrous dosimeters |
| D. | All of the mentioned |
| Answer» C. Ferrous dosimeters | |
| 9. |
Which of the following dosimeters are used? |
| A. | Primary standard |
| B. | Operating standard |
| C. | Production control devices |
| D. | All of the mentioned |
| Answer» E. | |
| 10. |
Which of the following reasons is why machine produced ionizing radiations are preferred over fission products? |
| A. | Fission products require extensive shielding and dose supplied may be so high that prolonged exposure times are required |
| B. | Machine produced radiations are unidirectional and can be turned off |
| C. | None of the mentioned |
| D. | Neither of the mentioned |
| Answer» C. None of the mentioned | |
| 11. |
Statement 1: _____ radiation is also called cathode radiation.Statement 2: In _____ radiation, spent fuel elements are used. |
| A. | Alpha, beta |
| B. | Gamma, alpha |
| C. | Beta, gamma |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 12. |
In which of the following ways does absorption of gamma radiation take place? |
| A. | Photoelectric effect |
| B. | Compton effect |
| C. | Pair production |
| D. | All of the mentioned |
| Answer» E. | |
| 13. |
Which of the following is correct about beta particles? |
| A. | High specific ionization ability |
| B. | Low penetrating power |
| C. | Higher ionization ability than gamma radiation |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 14. |
Which of the following is correct about alpha particles? |
| A. | High ionization due to relative size and carrying of double positive charge |
| B. | Low penetration power |
| C. | In air, they have a range of few centimeters |
| D. | All of the mentioned |
| Answer» E. | |
| 15. |
Which of the following fact about radiation/ irradiation is true? |
| A. | All food items consumed by man are radioactive |
| B. | Alpha and beta particles and gamma photons are the radiations available for food preservation applications |
| C. | Energy lost per ion pair formed is greater than the ionization energy |
| D. | All of the mentioned |
| Answer» E. | |