Question

1. Non-Newtonian liquids can show time dependency in response to shear. Which one of these is not time-dependent:

shear thinning

plastic yield stress

shear thickening, or

thixotropic behaviour?

2. In a graph of viscosity (Y axis) plotted against shear rate (X axis) for different Newtonian liquids, the plotted lines are all:

straight and horizontal

straight and sloped

passing through the origin

vertical, or

none of the above?

Answer 1

1)  Shear thickening :- the viscosity increases with increase in shear rate

2) For newtonian liquids viscosity is not affected by shear stress, Hence the line will be straight and Horizontal, parallel to X axis.