In the mechanism \(A B C D\) shown in the given Fig.21, the fixed link is denoted as (1), Crank \(A B\) as (2), rocker \(B D\) (3), Swivel trunnion at \(C\) as (4) The instantaneous centre \(I_{4}\) is at

(a) the centre of swivel trunnion

(b) the intersection of line \(A B\) and a perpendicular to \(B D\)

(c) infinity along \(A C\)

(d) infinity perpendicular to \(B D\).

Transcribed Image Text:

www 3 BQ (2 Fig.21