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Effects of Heat

In R.C.C slab...

Question

In R.C.C slabs only iron rods are used but not of any other metal because

A

it has more ultimate strength

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B

they are cheap

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C

elasticity is more

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D

the coefficient of expansions of concrete and iron are equal

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Solution

The correct option is C elasticity is more
it has mare elasticity. Fe rods doesn't produce tension Mb to a large amceunt inside the R.C.C. Thereferere due to more elasticity, Ferods are used.

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