-Which of the following statement/s is NOT true? Strain is dimensionless The cross-sectional area affected by the rivets in a plate is πdt Strain is the total deformation of the body divided by its...

-Which of the following statement/s is

NOT

true?
Strain is dimensionless
The cross-sectional area affected by the rivets in a plate is πdt
Strain is the total deformation of the body divided by its original length.
Shear stress is directed parallel to the area upon which it acts.

-Which statement is

NOT

true about ksi? *
Kilo (psi).
1000 lb
1 x10^3 psi.
1 x10^3 lb.

-Tensile stresses and strain are considered:
negative tensile stress and positive length
negative increase in length
positive increase in length
positive tensile stress and negative length