rotating
oscillating
reciprocating
all of the above
lower pair
higher pair
open pair
close pair
four bar linkage
6 bar linkage
8 bar linkage
3 bar linkage
point or line contact between the two elements when in motion
surface contact between the two ele-ments when in motion
elements of pairs not held together mechanically
two elements that permit relative motion
eight links
six links
four links
twelve links