The principal strains at a point on the surface of a tank are ε1= 700με and ε2 =410εμ. if this is a case of plane stress, determine the maximum principal stress. take e=29 x 10 and v=0.33

Fluids at rest possess no flow energy. a)- true b)- false

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false