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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. Dividing based on several characteristics capable of automatically
water activity
grading
hurdle technologies
newtonian fluid
2. High-speed mixers - Hydroshear homogenizer - Membrane emulsifiers - Pressure homogenizers - Rotor-stator homogenizers - Ultrasonic- sound energy to break particles
wet cleaning equipment
emulsifying/homogenizing
newtonian fluid
screens
3. Mass
bulk density
Problems with dry cleaning methods
disc mill
relative density
4. Ratios above 100:1
heat
bowl chopper
forming
fine grine
5. Creates the smallest particle size
laminar
pulping
Specific heat
water activity
6. Available moisture (relative vapor pressure)
water activity
goal of mixing
course grind
turbulent
7. Efficient (minimize losses) - Low Cost - No product degradation
shear rate
peeling
size reduction ratio
sugar content
8. Limited number of applications where contaminants have a different surface charge from the raw material
Electrostatic separators
hammer mill
grading
bulk density
9. Shear and impact forces - used for spice manufacturing - 70:30 impact predominated
Pin and disc mill
sorting
hammer mill
relative density
10. Under motion pushing
bulk density
impact
grading
Magnetic separators and metal detection
11. Dimensionless group that describes flow characteristics - includes pipe diameter - average velocity of fluid flow - fluid density - and fluid viscosity.
shear- thinning fluids
caustic peeler
reynolds number
colloids
12. Force that causes it to have friction with itself
size reduction ratio
shear
shear rate
ductility
13. Ingredients in mayo
latent heat
reynolds number
egg - vinegar - oil
Mixers for Low-or Medium Viscosity Liquids
14. The ability to form a homogenous mixture
Miscibility
baffle and angle
ductile foods
oil/vinegar
15. Used to mill wheat- cereals and flours
attrition mills
rollers
hydrocooling
pulping
16. 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
heat
forming
mixers for dry powder or particulate solids
sugar content
17. Force between the layers in the fluid
Air classifiers (AKA aspiration cleaners
attrition mills
rotational
shear stress
18. Pressure- pushing but not dynamically loaded
compressive force
crumbly
Specific heat
mixers for dry powder or particulate solids
19. 3 things used for size reduction
wet cleaning equipment
impact
stress
shear - impact - compression
20. Distance between rollers
grading
roller
sol
nip
21. 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
hurdle technologies
cutting- miller- pulper
roller
hammer mill
22. 4 types of hydrocoolers
strain
batch - convayer - immersion - truck
oil/vinegar
colloids
23. Emulsifier in mayo
mixers for high viscosity liquids
attrition mills
egg yolk
fine grine
24. Linear
laminar
hydrocooling
over-run
relative density
25. To achieve a uniform distribution of the components of flow
difference between rolls and biscuits
baffle and angle
goal of mixing
rollers
26. Paddle - Multiple Impeller - Turbine - Propeller
Mixers for Low-or Medium Viscosity Liquids
grading
high viscosity liquids
second pressure drop
27. Placed at goods intake - Before and after a unit operation - At the end of a line
longitudinal - radial - rotational
hammer mill
Magnetic separators and metal detection
screens
28. Tumbling action inside a rotating vessel - Screw type - Double Reversing agitators
baffle and angle
hurdle technologies
mixers for dry powder or particulate solids
difference between rolls and biscuits
29. Used to be was dividing things on one characteristic
Electrostatic separators
forming
shear
sorting
30. Track what goes into a system- account for everything that comes out minus what stays in the system
mass balance
ductile foods
newtonian fluid
Comminution
31. Rotating vessel slowly deposits material on top
compressive force
turbulent
rollers
panning
32. Dispersed phase in mayo
oil/vinegar
caustic peeler
mixers for dry powder or particulate solids
forming
33. Most energy used for size reduction goes to
First stage to create small particle size- second to disperse clumping
heat
hammer mill
sol
34. Specific gravity used as an indirect meaure of the
sugar content
reynolds number
Miscibility
cutting- miller- pulper
35. 3 components of mixing liquids
roblems with wet cleaning
batch - convayer - immersion - truck
longitudinal - radial - rotational
Electrostatic separators
36. Creates lots of heat - main force are shear action
goal of mixing
attrition mills
bulk density
water activity
37. Measures specific gravity
wet cleaning equipment
rollers
over-run
hydrometer
38. Generally mixed with slow-speed - vertical-shaft impellers such as a anchor and gate agitator
mixers for high viscosity liquids
hurdle technologies
high viscosity liquids
nip
39. What factors affect the degree of mixing that can be achieved with dry powders or particulate solids?
impact
relative density
rollers
Comminution
40. Soaking tanks (with or w/o stirring/paddles) - Flotation washing (fluming) - Spray washers (belts - drums) - Brush washers - Ultrasonic cleaners
disc mill
nip
reynolds number
wet cleaning equipment
41. Requires size reduction of dispersed particles by the application of intense shearing forces
homogenization
Miscibility
cutting- miller- pulper
batch - convayer - immersion - truck
42. Multiple paddle agitators - Planetary/Orbital - Z-Blade - Rotor-Stator
hurdle technologies
stress
ductile foods
mixers for high viscosity liquids
43. Involves tumbling in a drum with a silicon carbide or carborundum surface
non- newtonian fluids
fine grine
difference between rolls and biscuits
abrasion peeling
44. Generally used for products with high mechanical strength and low moisture - Relies on density and area difference
Comminution
forced- air cooling
Air classifiers (AKA aspiration cleaners
ductile foods
45. 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
peeling
hurdle technologies
goal of mixing
hydrocooling
46. Flour milled using this
roller
grading
Specific heat
hydrometer
47. Loss of soluble components (e.g. sugar) - Cost of water and water disposal - Accelerate microbial/biological degradation
attrition mills
Specific heat
roblems with wet cleaning
newtonian fluid
48. Force per unit area
egg yolk
Air classifiers (AKA aspiration cleaners
non- newtonian fluids
stress
49. = (vol of foam - vol liquid)/vol liquid) x 100
sugar content
vibrating
baffle and angle
over-run
50. Amount of energy it takes to change the temperature
caustic peeler
Specific heat
batch - convayer - immersion - truck
egg - vinegar - oil