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Why do rail tracks have a 'I shaped gird...

Why do rail tracks have a 'I shaped girder ?

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For reducing the effect of buckling, they are kept as .l-shaped..
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KUMAR PRAKASHAN-MACHANICAL PROPERTIES OF SOLIDS -SECTION-C
  1. Weight is suspended to the end of elastic spring its increaed length d...

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  2. What is the bulk modulus of a perfectly rigid body?

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  3. Why do rail tracks have a 'I shaped girder ?

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  4. Is it possible to double the length of a metallic wire by applying for...

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  5. A cable is cut to half of its original length. What will be the effect...

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  6. When a stress of 10^(8) Nm ^(-2) is applied to a suspended wire its le...

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  7. A metallic rod having area of cross section A, Young's modulus Y, coef...

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  8. The magnitude of Young's modulus proportonal to the increase in length...

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  9. Breaking stress is known as elasticity.

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  10. Quartxz is almost elastic body.

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  11. What is shear modulus for liquid ?

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  12. For a given load (external force) steel is more deformed than rubber.

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  13. When solid body beated, roled, heated or cooled its elastic properties...

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  14. Young's modulus of rigid body is …….

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  15. A wire increase by 10 ^(-6) times its original length when a stress o...

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  16. The value of Poisson's ratio for steel is ……..

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  17. If a body breaks immediately after the elastic limit then this body is...

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  18. An elastic body which can be stretched to cause arge strains are calle...

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  19. Column-II is related to Column-I. join them appropriately :

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  20. Join details of Column-II with given information in Column-I appropria...

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