7) Consider the following statements i. A stress condition in which the stresses are zero in one of the primary directions is called plane stress. ii. Yielding, or excessive plastic deformation, occurs when the elastic limit of the metal has been exceeded. iii. The working stress may be considered as either the yield strength or the tensile strength multiplied by a number called the factor of safety. Which of the above statement(s) is/are correct? i & ii only ii and iii only

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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7) Consider the following statements
i. A stress condition in which the stresses are
zero in one of the primary directions is called plane
stress.
ii. Yielding, or excessive plastic deformation, occurs
when the elastic limit of the metal has been
exceeded.
iii. The working stress may be considered as either
the yield strength or the tensile strength multiplied by
a number called the factor of safety.
Which of the above statement(s) is/are correct?
i & ii only
ii and iii only
i & iii only
Oi, ii & ii
Transcribed Image Text:7) Consider the following statements i. A stress condition in which the stresses are zero in one of the primary directions is called plane stress. ii. Yielding, or excessive plastic deformation, occurs when the elastic limit of the metal has been exceeded. iii. The working stress may be considered as either the yield strength or the tensile strength multiplied by a number called the factor of safety. Which of the above statement(s) is/are correct? i & ii only ii and iii only i & iii only Oi, ii & ii
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