True / false. when replacing a valve core, it is recommended that you
tighten the core with an approved torque tool and the torque spec
should be between 0.17nm - 0.37nm.

Plot schematically the tensile stress versus strain curves for a typical thermoplastic material at a temperature below its glass transition temperature (tg and at a temperature above its tg, respectively. do the same for a typical thermosetting material. list in a table any differences or similarities between the two materials at t> tg and t < tg, respectively, and relate them to the structures of the two types of polymers