WorksheetsFood Rheology
Total questions: 13
Worksheet time: 8mins
Rheology is defined as ...
the study of the effect of forces on a liquid
the study of how material behave upon heat treatment
the study of flow and deformation of matters
When subjected to external forces, solids will ....
deform
flow
On the other hand, liquids will ... if they are subjected to external forces
deform
flow
Most foods do not behave as perfect solids or perfect liquids. They behave as ... materials
(a)
This type of deformation is called ....
Expansion
Extension
Uni-axial compression
Bulk compression
Which one from the picture is "Shear" deformation?
Figure A
Figure B
Figure C
Does a SHEAR STRESS have a unit?
Yes, Pascal
Yes, Newton
No, it's dimensionless
Does a SHEAR RATE have a unit?
Yes, Pascal
Yes, m/s
No, it's dimensionless
Yes, s-1
Shear rateShear stress=
(a)
Shear thinning & Shear thickening
Time-dependent
Time-independent
"Viscosity increases as the rate of shear strain increases". This is the characteristic of ...
(a)
What type of material is this?
Pseudoplastic
Dilatant
Newtonian
Bingham
(A), (B), (C) are ... , respectively
Dilatant, Newtonian, Thixotropic
Rheopectic, Bingham, Dilatant
Rheopectic, Thixotropic, Bingham
Pseudoplastic, Newtonian, Dilatant
