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Advanced Food Processing

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. Determines the amount of heat generated from the absorbed energy
Dielectric Loss
100 KGY dose
First mechanisms by which IR achieves biological stability in food
true

2. 100 RAD
Penetration Depth
Chemical and physical
Gamma rays
1 GY

3. Dose required to kill bacterial spores?
1 GY
50 KGY
Chemical and physical
0.12 KGY

4. Traditional unit of measuring the amount of energy absorbed by food
Microwaves
5 KGY
Radiation Absorbed Dose (RAD)
Cesium 137

5. Utilizing (IR) to achieve biological stability of food by inhibiting or minimizing spoilage reactions
Food Irradiation
100 KGY dose
Radiation Absorbed Dose (RAD)
When issued - approval includes

6. Low frequency & long wave length
Radiation Absorbed Dose (RAD)
0.005 KGY
First mechanisms by which IR achieves biological stability in food
Radio waves

7. Dose required to kill virus?
0.1-1 KGY)
True
50 KGY
100 KGY dose

8. Food treated with ionizing radiation (IR) is said to be
irradiated
UV in the range of 200-280 nm
Dielectric Loss
Second mechanisms by which IR achieves biological stability in food

9. The quantity of radiation that results in the absorption of 100 ergs per gram of food
gamma rays
50 KGY
Microwaves
Radiation Absorbed Dose (RAD)

10. Dose required to kill a man
First mechanisms by which IR achieves biological stability in food
0.005 KGY
UV in the range of 200-280 nm
True

11. 1000 GY
Radiation Absorbed Dose (RAD)
1 GY
0.1-1 KGY)
1 KGY

12. Sprouting inhibition and
Chemical and physical
Radiation Absorbed Dose (RAD)
Penetration Depth
0.1-1 KGY)

13. Killing insects and eggs
2-5 KGY
Radiation Absorbed Dose (RAD)
0.2-5 KGY
0.1-1 KGY)

14. What is the half life of Cobalt 60?
Gamma rays
5 Years
0.12 KGY
True

15. Determines the affinity of a food system to absorb microwaves
Dielectric Constant
Radiation Absorbed Dose (RAD)
When issued - approval includes
2-5 KGY

16. Which waves vary in frequency and are closer to Radio waves frequencies
0.12 KGY
Food Irradiation
Cobalt 60
Microwaves

17. These rays have no penetration depth hence it will only achieve surface inactivation of microorganisms
1 GY
UV in the range of 200-280 nm
2-5 KGY
Dielectric Constant

18. Dose required to kill yeast and mold?
Gamma rays
True
5 KGY
1 GY

19. Determines how far the MWs penetrate into the food and it is affected by the above two parameters plus others
true
Dielectric Constant
100 KGY dose
Penetration Depth

20. Dose required to kill insects?
0.12 KGY
When issued - approval includes
Cobalt 60
50 KGY

21. Gamma rays have high penetration capability
Food Irradiation
Second mechanisms by which IR achieves biological stability in food
Chemical and physical
true

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
Second mechanisms by which IR achieves biological stability in food
Dielectric Loss
50 KGY
Food Irradiation

23. Is also used in limited extent in food irradiation.
Cobalt 60
Radio waves
Cesium 137
1 KGY

24. High frequency & short wave length
1 KGY
Gamma rays
Cobalt 59
50 KGY

25. Direct Effect- a bullet-like effect with high energy particles impacting the vital parts of the cell
Cobalt 60
Cobalt 59
First mechanisms by which IR achieves biological stability in food
0.12 KGY

26. What changes take place when energy is applied?
Food Irradiation
5 KGY
Chemical and physical
Cobalt 60

27. What kind of rays does Cobalt 60 emit?
Dielectric Constant
Penetration Depth
0.12 KGY
gamma rays

28. -the more complex the biological system is the less amount of IR required to induce changes
irradiated
True
1 KGY
0.005 KGY

29. Pasteurization of herbs and spices
Cesium 137
0.12 KGY
true
2-5 KGY

30. Made into an unstable isotope by neutron bombardment
Cobalt 59
True
When issued - approval includes
Cobalt 60

31. The food category - the purpose of irradiation - and the dose permitted in KGY
UV in the range of 200-280 nm
Food Irradiation
50 KGY
When issued - approval includes

32. The common source of energy in food irradiation
Dielectric Constant
Microwaves
50 KGY
Cobalt 60

33. Describes a continuous range of radiation energy having an electric and a magnetic component
Cobalt 59
0.2-5 KGY
The Electromagnetic Spectrum (EMS)
When issued - approval includes