Test your basic knowledge |

Food Processing

Subjects : industries, engineering
Instructions:
  • Answer 50 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. Creates lots of heat - main force are shear action






2. Not always effective (attached soil) - Can be dusty (explosion hazard) - Recontamination hazard - Can damage product






3. Under motion pushing






4. Flour milled using this






5. Most energy used for size reduction goes to






6. Advantages: Suitable for leafy vegetables; does NOT require spraying - or immersion with water - hence won't spread disease. High energy efficiency - Disadvantages: Some product shrinkage due to water loss.






7. Generally used for products with high mechanical strength and low moisture - Relies on density and area difference






8. Pseudoplastic






9. Advantages: chill and store in one place limits handling - Disadvantages: Can dry/dehydrate produce






10. Emulsifier in mayo






11. Linear






12. Increases the variety and convenience of foods - Common for bakery goods and confectionery - Many products are formed by extrusion - but we will discuss that later






13. Force per unit area






14. = initial avg particle size/final avg particle size






15. Placed at goods intake - Before and after a unit operation - At the end of a line






16. Ratios above 100:1






17. The amount of energy it takes to change the state






18. May be single (one stationary casing and a frooved one that rotates) or double- where the two surfaces rotate in opposite directions - Dress of millstone will determine texture of the final product






19. To achieve a uniform distribution of the components of flow






20. Size reduction equipment in order of decreasing size






21. Why do we use two pressure drops? EXAM QUESTION






22. Paddle - Multiple Impeller - Turbine - Propeller






23. = (vol of foam - vol liquid)/vol liquid) x 100






24. Specific gravity used as an indirect meaure of the






25. Pressure- pushing but not dynamically loaded






26. Distance between rollers






27. Involves tumbling in a drum with a silicon carbide or carborundum surface






28. 3 things used for size reduction






29. Used to mill wheat- cereals and flours






30. Separate products by size






31. Mass






32. Used to be was dividing things on one characteristic






33. Creates the smallest particle size






34. Each thing we do to prevent degradation is one hurdle- name an example- packaging






35. Ability to deform permanently without breaking






36. Ratio below 8:1






37. Energy from liquid to gas and vice versa






38. The breakdown of solid material through the application of mechanical forces- size reduction






39. Amount of energy from solid to liquid and vice versa






40. Leavening agent- breads have the yeast with CO2 giving us the lift in the bread- want this to take place before the breaking - Biscuit- leavening agent - chemical reaction- lots take place during baking process






41. Linear relationship between sheer rate and sheer stress






42. Generally mixed with slow-speed - vertical-shaft impellers such as a anchor and gate agitator






43. Force between the layers in the fluid






44. Tumbling action inside a rotating vessel - Screw type - Double Reversing agitators






45. Efficient (minimize losses) - Low Cost - No product degradation






46. Gum- fruit by the foot






47. Rotating vessel slowly deposits material on top






48. Used to chop meat and harder fruits and veggies into pulp






49. Limited number of applications where contaminants have a different surface charge from the raw material






50. Dimensionless group that describes flow characteristics - includes pipe diameter - average velocity of fluid flow - fluid density - and fluid viscosity.