» Unlabelled » 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____.

Sunday, 3 March 2013

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

Ans: C

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