Principal planes are subjected to

normal stresses only

tangential stresses only

normal stresses as well as tangential stresses

None of the above

Correct Answer : normal stresses only

Recently Updated in Theory of Structures Questions

Shear strain energy theory for the failure of a material at elastic limit, is due to

Rankine

Von Mises

St. Venant

Guest or Trecas

Correct Answer : Option (B) : Von Mises

The shape factor of standard rolled beam section varies from

1.10 to 1.20

1.20 to 1.30

1.30 to 1.40

1.40 to 1.50

Correct Answer : Option (A) : 1.10 to 1.20

The point of contraflexure is the point where

S.F. is zero

B.M. is maximum

B.M. changes sign

B.M. is minimum

Correct Answer : Option (C) : B.M. changes sign