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. Force per unit area






2. Formed when one substance of very small particle size is dispersed through another substance and the two substances are immiscible






3. Used to mill wheat- cereals and flours






4. Helps prevent blinding






5. Under motion pushing






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






7. Paddle - Multiple Impeller - Turbine - Propeller






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






9. Specific gravity used as an indirect meaure of the






10. 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.






11. Multiple paddle agitators - Planetary/Orbital - Z-Blade - Rotor-Stator






12. Soaking tanks (with or w/o stirring/paddles) - Flotation washing (fluming) - Spray washers (belts - drums) - Brush washers - Ultrasonic cleaners






13. Dividing based on several characteristics capable of automatically






14. Shear and impact forces - used for spice manufacturing - 70:30 impact predominated






15. Flour milled using this






16. Pseudoplastic






17. Creates lots of heat - main force are shear action






18. Ratio below 8:1






19. Mass






20. Used to be was dividing things on one characteristic






21. Track what goes into a system- account for everything that comes out minus what stays in the system






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






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






24. Pressure- pushing but not dynamically loaded






25. = mass of liquid






26. Size reduction equipment in order of decreasing size






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






28. Dispersed phase in mayo






29. Loss of soluble components (e.g. sugar) - Cost of water and water disposal - Accelerate microbial/biological degradation






30. 3 components of mixing liquids






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






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






33. A friable food is






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






35. Creates the smallest particle size






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






37. Mixing component that is undesired






38. Available moisture (relative vapor pressure)






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






40. Ratios above 100:1






41. Linear






42. Efficient mixing is achieved by creating and recombining fresh surfaces






43. A fluid suspension of a colloidal solid in a liquid






44. Emulsifier in mayo






45. High-speed mixers - Hydroshear homogenizer - Membrane emulsifiers - Pressure homogenizers - Rotor-stator homogenizers - Ultrasonic- sound energy to break particles






46. The ability to form a homogenous mixture






47. Separate products by size






48. Shearing breaks up fat globules in milk- but they still want to clump- pass through ------ disperses them






49. 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






50. 3 things used for size reduction