Test your basic knowledge |

Advanced Food Processing

Subjects : industries, engineering
Instructions:
  • Answer 33 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Food treated with ionizing radiation (IR) is said to be






2. Dose required to kill yeast and mold?






3. Low frequency & long wave length






4. These rays have no penetration depth hence it will only achieve surface inactivation of microorganisms






5. What is the half life of Cobalt 60?






6. The food category - the purpose of irradiation - and the dose permitted in KGY






7. Which waves vary in frequency and are closer to Radio waves frequencies






8. Determines the amount of heat generated from the absorbed energy






9. Describes a continuous range of radiation energy having an electric and a magnetic component






10. 1000 GY






11. Gamma rays have high penetration capability






12. What changes take place when energy is applied?






13. Utilizing (IR) to achieve biological stability of food by inhibiting or minimizing spoilage reactions






14. -the more complex the biological system is the less amount of IR required to induce changes






15. Determines how far the MWs penetrate into the food and it is affected by the above two parameters plus others






16. Traditional unit of measuring the amount of energy absorbed by food






17. Made into an unstable isotope by neutron bombardment






18. Sprouting inhibition and






19. Direct Effect- a bullet-like effect with high energy particles impacting the vital parts of the cell






20. High frequency & short wave length






21. What kind of rays does Cobalt 60 emit?






22. Indirect Effect- ionization of molecules that produces ion pairs (by knocking off an electron) and free radicals (by breaking bonds) result in chemical reactions that interrupt biological functions






23. Dose required to kill bacterial spores?






24. Determines the affinity of a food system to absorb microwaves






25. Dose required to kill insects?






26. 100 RAD






27. Pasteurization of herbs and spices






28. Dose required to kill a man






29. Is also used in limited extent in food irradiation.






30. Killing insects and eggs






31. Dose required to kill virus?






32. The common source of energy in food irradiation






33. The quantity of radiation that results in the absorption of 100 ergs per gram of food