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For unrestrained cube made from linear, isotropic, homogeneous material the temperature increase causes strain in_____ direction(s) and stress in _____ direction(s).

one; one
two; two
three:three
four; four
five; five
six six
none of the above

Answer :

Answer: The answer is four; four

Explanation: This is because of the mixture of material used and the number of directions it causes strain I directly proportional to the number of times it causes stress.

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