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

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Question:

If there are m unknown member forces, r unknown reaction components and j number ofjoints, 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» c. m + r – 2j

Note: The above multiple-choice question is for all general and Competitive Exams in India.