Design a linkage with the following requirements:

(a) 2 degrees of freedom
(b) Uses fewest possible binary and quaternary links (both quaternary and binary must be used).
(c) Consists of no zero-dof structures (e. g. three links attached to each other in a triangle, or a binary link attached to ground at both ends)
(d) Pin joints only

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

The higher the astm grain size number, the finer the gran is. a)-true b)-false