1.

*$_If there are m unknown member forces, r unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin-jointed plane frame is given by?

A. m + r + 2j
B. m – r + 2j
C. m + r – 2j
D. m + r – 3j
Answer» D. m + r ‚Äö√Ñ√¨ 3j


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