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Advanced Food Processing

Instructions:

Answer 33 questions in 15 minutes.
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Match each statement with the correct term.
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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. Made into an unstable isotope by neutron bombardment
0.1-1 KGY)
Chemical and physical
5 KGY
Cobalt 59

2. The quantity of radiation that results in the absorption of 100 ergs per gram of food
100 KGY dose
Radiation Absorbed Dose (RAD)
Cobalt 59
Penetration Depth

3. The food category - the purpose of irradiation - and the dose permitted in KGY
gamma rays
When issued - approval includes
Second mechanisms by which IR achieves biological stability in food
0.12 KGY

4. Dose required to kill a man
true
0.005 KGY
Radiation Absorbed Dose (RAD)
gamma rays

5. Food treated with ionizing radiation (IR) is said to be
irradiated
0.005 KGY
0.2-5 KGY
Radiation Absorbed Dose (RAD)

6. Utilizing (IR) to achieve biological stability of food by inhibiting or minimizing spoilage reactions
First mechanisms by which IR achieves biological stability in food
Food Irradiation
Chemical and physical
Radiation Absorbed Dose (RAD)

7. What changes take place when energy is applied?
0.2-5 KGY
irradiated
Chemical and physical
5 KGY

8. Determines how far the MWs penetrate into the food and it is affected by the above two parameters plus others
Cesium 137
When issued - approval includes
Penetration Depth
1 KGY

9. What kind of rays does Cobalt 60 emit?
Dielectric Loss
First mechanisms by which IR achieves biological stability in food
gamma rays
true

10. Sprouting inhibition and
UV in the range of 200-280 nm
Second mechanisms by which IR achieves biological stability in food
0.1-1 KGY)
True

11. These rays have no penetration depth hence it will only achieve surface inactivation of microorganisms
UV in the range of 200-280 nm
When issued - approval includes
Microwaves
1 KGY

12. Traditional unit of measuring the amount of energy absorbed by food
Radio waves
The Electromagnetic Spectrum (EMS)
5 Years
Radiation Absorbed Dose (RAD)

13. Determines the amount of heat generated from the absorbed energy
Radiation Absorbed Dose (RAD)
0.1-1 KGY)
Penetration Depth
Dielectric Loss

14. 100 RAD
1 KGY
The Electromagnetic Spectrum (EMS)
Dielectric Loss
1 GY

15. Dose required to kill yeast and mold?
Microwaves
Food Irradiation
True
5 KGY

16. What is the half life of Cobalt 60?
Gamma rays
5 Years
50 KGY
0.005 KGY

17. Pasteurization of herbs and spices
2-5 KGY
Radiation Absorbed Dose (RAD)
Cobalt 60
Radiation Absorbed Dose (RAD)

18. Dose required to kill insects?
First mechanisms by which IR achieves biological stability in food
0.12 KGY
true
0.005 KGY

19. Describes a continuous range of radiation energy having an electric and a magnetic component
0.1-1 KGY)
1 KGY
The Electromagnetic Spectrum (EMS)
0.005 KGY

20. Gamma rays have high penetration capability
Second mechanisms by which IR achieves biological stability in food
0.1-1 KGY)
true
5 KGY

21. The common source of energy in food irradiation
Radiation Absorbed Dose (RAD)
100 KGY dose
Chemical and physical
Cobalt 60

22. 1000 GY
Dielectric Loss
1 GY
0.12 KGY
1 KGY

23. High frequency & short wave length
1 KGY
Dielectric Loss
Gamma rays
Chemical and physical

24. Killing insects and eggs
0.2-5 KGY
Dielectric Constant
Radio waves
100 KGY dose

25. Dose required to kill virus?
100 KGY dose
true
Radiation Absorbed Dose (RAD)
UV in the range of 200-280 nm

26. 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
When issued - approval includes
true
Food Irradiation
Second mechanisms by which IR achieves biological stability in food

27. -the more complex the biological system is the less amount of IR required to induce changes
0.12 KGY
Second mechanisms by which IR achieves biological stability in food
True
Radiation Absorbed Dose (RAD)

28. Determines the affinity of a food system to absorb microwaves
Radiation Absorbed Dose (RAD)
2-5 KGY
The Electromagnetic Spectrum (EMS)
Dielectric Constant

29. Dose required to kill bacterial spores?
Chemical and physical
Dielectric Loss
When issued - approval includes
50 KGY

30. Direct Effect- a bullet-like effect with high energy particles impacting the vital parts of the cell
First mechanisms by which IR achieves biological stability in food
Gamma rays
Microwaves
Chemical and physical

31. Which waves vary in frequency and are closer to Radio waves frequencies
Microwaves
Cobalt 59
Dielectric Constant
0.12 KGY

32. Is also used in limited extent in food irradiation.
2-5 KGY
50 KGY
Cesium 137
Food Irradiation

33. Low frequency & long wave length
True
Radio waves
Food Irradiation
0.12 KGY

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Advanced Food Processing

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