Generate the axis for each problem. Recall that the horizontal scale must be equal to the

vertical scale for all Mohr's circle problems. For Problem $1,$ scale your axis using $1$

engineering block $=25$ psf$.$ For Problem $2,$ scale your axis using $1$ engineering block $=1$kPa.

Draw Mohr's circle for each problem. To do this, identify the correct coordinates using the

sign convention defined in this course and use them to draw the circle. Be sure to label the

coordinates on the figure directly.

Report the magnitude and the corresponding symbols and $\{$:${}_3)$ for the major principal stress

and minor principal stress clearly on your figure. Ensure that the location of these stresses is

clear on your figure.

Using methods learned in class, find and label the "POLE" $($all construction lines used to find

the Pole should be dashed$).$ Be sure to label the location of the POLE clearly on your figure.

Find and label the normal and shear stress on the inclined plane for each problem using correct

notation: ${}_n=,$ and ${}_n=$

$($you must include the magnitude of the stress next

to the notation at the correct location on your circle$).$ Note the inclined plane is oriented $45$

for Problem $1$ and $30$ for Problem $2($with respect to the horizontal$).$ The inclined plane

should be displayed using a solid line and labeled directly on your figure: "Inclined Plane".

Locate, draw, and label the "Major Principal Plane" and "Minor Principal Plane" clearly on

your figure $($use solid lines$).$ Label these planes on your figure.

Draw an equivalent soil element $($a square$)$ that shows the principal planes and principal

stresses oriented correctly $($show angles between planes and horizontal$)$ and the correct

stresses on those planes. Be sure to note the following on this element: