A direct shear test gave the following data.

Normal stress $=21\mathrm{.}91k\frac{N}{m^2},$

shear stress $=15\mathrm{.}98K\frac{N}{m^2},$

Angle of internal friction $=20,$

Cohesion $=8K\frac{N}{m^2}.$

Represent the data by Mohr's circle and compute the princi pal stresses and the direction of principal planes.

Q$.$ For the beams shown Lelow, defemine lel number end moments by slope deffecs method and draw SFD: BMDs of each.

a$).$

EI$.$ constant.

b$)$

c$)$

${}_D=5mm.$

Q$.$ For the beams shown Lelow, defemine lel number end moments by slope deffecs method and draw SFD: BMDs of each.

a$).$

EI$.$ constant.

b$)$

c$)$

${}_D=5mm.$