Q11
For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal (i) Of a stiffness matrix must be positive (ii) Of a stiffness matrix must be negative (iii) Of a flexibility matrix must be positive (iv) Of a flexibility matrix must be negativeThe correct answer is
A.
(i) and (iii)
AnswerB.
(ii) and (iii)
C.
(i) and (iv)
D.
(ii) and (iv)
Answer: Option A
Solution
Answer: Option A
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