The number of plastic hinges necessary to convert a framed structure i – McqOptions

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1.	The number of plastic hinges necessary to convert a framed structure into a mechanism is (r is degree of redundancy of the structure)
A.	r - 1
B.	r + 1
C.	2r + 1
D.	2r - 1
E.	Increasing the diameter of threaded portion
Answer» C.

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