1.

The moment equation as a function of angle θ for a built-in arch shown in the following figure can be given as

A. M = QR sinθ - PR (1 - cosθ)
B. M = QR (1 - cosθ) - PR sinθ
C. M = QR cosθ - PR (1 - sinθ)
D. M = QR (1 - sinθ) - PR cosθ
Answer» B. M = QR (1 - cosθ) - PR sinθ


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