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Test your basic knowledge |
Food Processing
Start Test
Study First
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
egg yolk
stress
Problems with dry cleaning methods
vibrating
2. Formed when one substance of very small particle size is dispersed through another substance and the two substances are immiscible
laminar
panning
strain
colloids
3. Used to mill wheat- cereals and flours
shear rate
pulping
rollers
homogenization
4. Helps prevent blinding
bowl chopper
vibrating
hydrocooling
rotational
5. Under motion pushing
Magnetic separators and metal detection
impact
roblems with wet cleaning
Comminution
6. Tumbling action inside a rotating vessel - Screw type - Double Reversing agitators
latent heat
mixers for dry powder or particulate solids
cutting- miller- pulper
bulk density
7. Paddle - Multiple Impeller - Turbine - Propeller
egg - vinegar - oil
Mixers for Low-or Medium Viscosity Liquids
First stage to create small particle size- second to disperse clumping
Problems with dry cleaning methods
8. Efficient (minimize losses) - Low Cost - No product degradation
nip
sol
homogenization
peeling
9. Specific gravity used as an indirect meaure of the
heat
over-run
sugar content
batch - convayer - immersion - truck
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.
vacuum cooling
homogenization
panning
difference between rolls and biscuits
11. Multiple paddle agitators - Planetary/Orbital - Z-Blade - Rotor-Stator
crumbly
stress
pulping
mixers for high viscosity liquids
12. Soaking tanks (with or w/o stirring/paddles) - Flotation washing (fluming) - Spray washers (belts - drums) - Brush washers - Ultrasonic cleaners
difference between rolls and biscuits
sol
wet cleaning equipment
second pressure drop
13. Dividing based on several characteristics capable of automatically
oil/vinegar
vacuum cooling
grading
Miscibility
14. Shear and impact forces - used for spice manufacturing - 70:30 impact predominated
Pin and disc mill
Problems with dry cleaning methods
over-run
ductile foods
15. Flour milled using this
bowl chopper
compressive force
mixers for high viscosity liquids
roller
16. Pseudoplastic
shear- thinning fluids
forming
roller
kneading
17. Creates lots of heat - main force are shear action
attrition mills
newtonian fluid
Specific gravity
latent heat of vaporization
18. Ratio below 8:1
hydrometer
Magnetic separators and metal detection
egg yolk
course grind
19. Mass
water activity
bulk density
over-run
vibrating
20. Used to be was dividing things on one characteristic
egg yolk
second pressure drop
colloids
sorting
21. Track what goes into a system- account for everything that comes out minus what stays in the system
mass balance
homogenization
forming
forced- air cooling
22. Why do we use two pressure drops? EXAM QUESTION
hydrometer
kneading
shear rate
First stage to create small particle size- second to disperse clumping
23. The breakdown of solid material through the application of mechanical forces- size reduction
latent heat
Comminution
impact
latent heat of vaporization
24. Pressure- pushing but not dynamically loaded
wet cleaning equipment
pulping
compressive force
Specific heat
25. = mass of liquid
hydrometer
Specific gravity
longitudinal - radial - rotational
mixers for dry powder or particulate solids
26. Size reduction equipment in order of decreasing size
mass balance
cutting- miller- pulper
Miscibility
attrition mills
27. Generally used for products with high mechanical strength and low moisture - Relies on density and area difference
newtonian fluid
caustic peeler
Air classifiers (AKA aspiration cleaners
hydrocooling
28. Dispersed phase in mayo
oil/vinegar
nip
shear- thinning fluids
wet cleaning equipment
29. Loss of soluble components (e.g. sugar) - Cost of water and water disposal - Accelerate microbial/biological degradation
Magnetic separators and metal detection
roblems with wet cleaning
longitudinal - radial - rotational
panning
30. 3 components of mixing liquids
longitudinal - radial - rotational
sorting
Pin and disc mill
high viscosity liquids
31. Advantages: chill and store in one place limits handling - Disadvantages: Can dry/dehydrate produce
forced- air cooling
homogenization
oil/vinegar
shear stress
32. Each thing we do to prevent degradation is one hurdle- name an example- packaging
hurdle technologies
panning
shear - impact - compression
high viscosity liquids
33. A friable food is
bowl chopper
crumbly
shear
strain
34. Used to chop meat and harder fruits and veggies into pulp
relative density
Latent heat of fusion
roller
bowl chopper
35. Creates the smallest particle size
course grind
shear
roller
pulping
36. Placed at goods intake - Before and after a unit operation - At the end of a line
strain
Magnetic separators and metal detection
hammer mill
bowl chopper
37. Mixing component that is undesired
grading
latent heat of vaporization
rotational
high viscosity liquids
38. Available moisture (relative vapor pressure)
Pin and disc mill
homogenization
water activity
newtonian fluid
39. Not always effective (attached soil) - Can be dusty (explosion hazard) - Recontamination hazard - Can damage product
peeling
water activity
Problems with dry cleaning methods
rollers
40. Ratios above 100:1
caustic peeler
sorting
reynolds number
fine grine
41. Linear
size reduction ratio
hammer mill
Latent heat of fusion
laminar
42. Efficient mixing is achieved by creating and recombining fresh surfaces
kneading
rollers
longitudinal - radial - rotational
sorting
43. A fluid suspension of a colloidal solid in a liquid
screens
sol
batch - convayer - immersion - truck
vibrating
44. Emulsifier in mayo
crumbly
First stage to create small particle size- second to disperse clumping
egg yolk
shear
45. High-speed mixers - Hydroshear homogenizer - Membrane emulsifiers - Pressure homogenizers - Rotor-stator homogenizers - Ultrasonic- sound energy to break particles
Electrostatic separators
screens
sugar content
emulsifying/homogenizing
46. The ability to form a homogenous mixture
Miscibility
laminar
Specific heat
compressive force
47. Separate products by size
mass balance
shear stress
screens
Mixers for Low-or Medium Viscosity Liquids
48. Shearing breaks up fat globules in milk- but they still want to clump- pass through ------ disperses them
second pressure drop
goal of mixing
screens
First stage to create small particle size- second to disperse clumping
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
difference between rolls and biscuits
compressive force
disc mill
wet cleaning equipment
50. 3 things used for size reduction
crumbly
pulping
shear - impact - compression
Latent heat of fusion