SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
Search
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. Used to mill wheat- cereals and flours
Problems with dry cleaning methods
rollers
shear- thinning fluids
ductile foods
2. Linear
laminar
stress
Comminution
crumbly
3. Specific gravity used as an indirect meaure of the
shear
latent heat of vaporization
abrasion peeling
sugar content
4. Shear and impact forces - used for spice manufacturing - 70:30 impact predominated
panning
high viscosity liquids
colloids
Pin and disc mill
5. What factors affect the degree of mixing that can be achieved with dry powders or particulate solids?
second pressure drop
relative density
batch - convayer - immersion - truck
compressive force
6. Requires size reduction of dispersed particles by the application of intense shearing forces
homogenization
attrition mills
impact
hydrometer
7. Placed at goods intake - Before and after a unit operation - At the end of a line
cutting- miller- pulper
Magnetic separators and metal detection
relative density
Electrostatic separators
8. 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.
sol
emulsifying/homogenizing
vacuum cooling
ductile foods
9. 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
size reduction ratio
laminar
disc mill
latent heat
10. Creates the smallest particle size
pulping
hurdle technologies
cutting- miller- pulper
latent heat
11. Each thing we do to prevent degradation is one hurdle- name an example- packaging
hurdle technologies
hydrometer
screens
Specific heat
12. = initial avg particle size/final avg particle size
nip
shear
stress
size reduction ratio
13. Force per unit area
goal of mixing
panning
stress
latent heat
14. Available moisture (relative vapor pressure)
wet cleaning equipment
Comminution
water activity
hydrometer
15. Used to be was dividing things on one characteristic
sugar content
sorting
Specific gravity
size reduction ratio
16. Multiple paddle agitators - Planetary/Orbital - Z-Blade - Rotor-Stator
mixers for high viscosity liquids
Electrostatic separators
abrasion peeling
wet cleaning equipment
17. Pseudoplastic
colloids
kneading
laminar
shear- thinning fluids
18. Ratio below 8:1
non- newtonian fluids
course grind
homogenization
Comminution
19. Efficient mixing is achieved by creating and recombining fresh surfaces
ductility
kneading
sorting
Pin and disc mill
20. Energy from liquid to gas and vice versa
abrasion peeling
latent heat of vaporization
vacuum cooling
second pressure drop
21. = (vol of foam - vol liquid)/vol liquid) x 100
batch - convayer - immersion - truck
shear rate
over-run
laminar
22. 4 types of hydrocoolers
sol
batch - convayer - immersion - truck
latent heat of vaporization
sugar content
23. Dimensionless group that describes flow characteristics - includes pipe diameter - average velocity of fluid flow - fluid density - and fluid viscosity.
roller
reynolds number
course grind
peeling
24. 3 components of mixing liquids
longitudinal - radial - rotational
mass balance
disc mill
sorting
25. Hammers hit food but force it up to the top chamber - impact to the top of the machine- can change the screen size- can't leave impact zone until it is small enough to go through the screen
hammer mill
second pressure drop
ductile foods
strain
26. Generally mixed with slow-speed - vertical-shaft impellers such as a anchor and gate agitator
stress
sugar content
cutting- miller- pulper
high viscosity liquids
27. Flour milled using this
First stage to create small particle size- second to disperse clumping
attrition mills
shear stress
roller
28. Advantages: Rapid cooling; can handle large quantities; prevents dehydration - Disadvantages: Can encourage diseases; not all products tolerate wetting; restrictions on packaging and stacking arrangements; capital costs can be high
egg yolk
grading
hydrocooling
rollers
29. Force between the layers in the fluid
shear stress
cutting- miller- pulper
sol
ductility
30. The amount of energy it takes to change the state
second pressure drop
pulping
latent heat
heat
31. Distance between rollers
turbulent
bulk density
nip
difference between rolls and biscuits
32. High-speed mixers - Hydroshear homogenizer - Membrane emulsifiers - Pressure homogenizers - Rotor-stator homogenizers - Ultrasonic- sound energy to break particles
First stage to create small particle size- second to disperse clumping
nip
emulsifying/homogenizing
Comminution
33. The ability to form a homogenous mixture
Miscibility
compressive force
Problems with dry cleaning methods
latent heat of vaporization
34. Measures specific gravity
latent heat
hydrometer
ductility
Problems with dry cleaning methods
35. Loss of soluble components (e.g. sugar) - Cost of water and water disposal - Accelerate microbial/biological degradation
roblems with wet cleaning
hammer mill
homogenization
grading
36. Swirls in the flow
vibrating
relative density
latent heat of vaporization
turbulent
37. Limited number of applications where contaminants have a different surface charge from the raw material
Electrostatic separators
Miscibility
bulk density
mass balance
38. Shearing breaks up fat globules in milk- but they still want to clump- pass through ------ disperses them
second pressure drop
baffle and angle
strain
shear rate
39. Velocity gradient that is formed- relative rate between the layers
First stage to create small particle size- second to disperse clumping
Specific gravity
turbulent
shear rate
40. To achieve a uniform distribution of the components of flow
vibrating
batch - convayer - immersion - truck
goal of mixing
screens
41. Pressure- pushing but not dynamically loaded
kneading
over-run
compressive force
vacuum cooling
42. Under motion pushing
laminar
impact
reynolds number
roller
43. Ratios above 100:1
bowl chopper
caustic peeler
hammer mill
fine grine
44. Amount of energy it takes to change the temperature
hydrometer
roblems with wet cleaning
Specific heat
baffle and angle
45. Concentrated fruit juices - liquid chocolate - and corn flour suspension
hammer mill
non- newtonian fluids
longitudinal - radial - rotational
abrasion peeling
46. Formed when one substance of very small particle size is dispersed through another substance and the two substances are immiscible
strain
colloids
difference between rolls and biscuits
egg - vinegar - oil
47. Advantages: chill and store in one place limits handling - Disadvantages: Can dry/dehydrate produce
size reduction ratio
forced- air cooling
fine grine
course grind
48. A friable food is
hammer mill
heat
crumbly
pulping
49. Track what goes into a system- account for everything that comes out minus what stays in the system
relative density
mass balance
emulsifying/homogenizing
bowl chopper
50. The breakdown of solid material through the application of mechanical forces- size reduction
rotational
sorting
Comminution
caustic peeler