The effect of an unbalanced primary force along the line of stroke is to produce ________
(a) Swaying couple
(b) Constant tractive force
(c) Piston effort
(d) Crank effort
This question was posed to me in class test.
This intriguing question originated from Effect of Partial Balancing of Reciprocating Parts of Two Cylinder Locomotives in portion Balancing of Reciprocating Masses of Machine Dynamics