Civil Engineering - UPSC Civil Service Exam Questions - Discussion


In a plane truss, if 'M' is the number of members, 'R' is the number of reactions and 'J' is the number of joints, then for this truss to be determinate

[A]. J = M + R
[B]. J = 2M + R
[C]. 3J = M + 2R
[D]. 2J = M + R

Answer: Option D


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