27
Question
Metal pipes that carry steam are provided with bends to allow for expansion.
Metal pipes that carry steam are provided with bends to allow for expansion.
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Solution
The correct option is B True
Yes, metal pipes carrying steam are provided with bends to allow for the expansion of metal so as to decrease the stress due to the strain produced in the meatal when it expands.In a nutshell, when the metal expands, it has a strain (i.e change in length) which in turn produces stress in the metal which can even crack the metal.Thus to prevent such accidents they are provided with bends to absorb the stress by elastic action.
Hence, option A is correct.
Yes, metal pipes carrying steam are provided with bends to allow for the expansion of metal so as to decrease the stress due to the strain produced in the meatal when it expands.
In a nutshell, when the metal expands, it has a strain (i.e change in length) which in turn produces stress in the metal which can even crack the metal.
Thus to prevent such accidents they are provided with bends to absorb the stress by elastic action.
Hence, option A is correct.
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