why are girders are given I shape??
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Grinding is used to finish workpieces that must show high surface quality (e.g., low surface roughness) and high accuracy of shape and dimension. that's why given I shape
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Answer:
The 2 horizontal parts of the I beam can bear high bending and shearing stress. Therefore, they do not get twisted and tilted easily. The I shape reduces the weight of the beam without sacrificing strength.
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