Physics Test Preparations On Theory of structures Part 1

Test Preparation on Physics Test Preparations On Theory of structures Part 1

1.

The assumption in the theory of bending of beams is :

1material is isotropic
2Young's modulus is same in tension as well as in compression
3each layer is independent to expand or to contract
4all the above.

2.

The shape factor of the standard rolled beam section varies from

11.10 to 1.20
21.20 to 1.30
31.30 to 1.40
41.40 to 1.50

3.

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

1Guest or Trecas
2St. Venant
3Haig
4Von Mises.

4.

The point of contra flexure is the point where

1B.M. changes sign
2B.M. is maximum
3B.M. is minimum
4S.F. is zero.

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