Ch $8\mathrm{.}1$ to $8\mathrm{.}2$

$1$ Multiple Choice $1$ point

Principal planes are those:

With the largest combination of normal and shear stresses acting on them

With the largest shear stresses acting on them

With no shear stress acting on them

With the highest likelihood of shear failure

$2$

Multiple Choice $1$ point

With geotechnical engineering convention, compressive forces and stresses are:

Positive

Negative

Zero

Imaginary

Multiple Choice $1$ point

With geotechnical engineering convention, shear forces in the counterclockwise direction are:

Positive

Negative

Zero

Imaginary