Sinking of an intermediate support of a continuous beam i) reduces the negative moment at support ii) increases the negative moment at support iii) reduces the positive moment at center of span iv) increases the positive moment at center of span The correct answer is

• A. (ii) and (iv)
• B. (i) and (iii)
• C. (ii) and (iii)
• D. (i) and (iv)

Answer: (D)