Question

The mechanism consisting of three turning pairs and one sliding pair, is called a

(a) single slider crank chain

(b) whitworth quick return motion mechanism

(c) crank and slotted lever quick return motion mechanism

(d) all of the mentioned

I got this question during an interview for a job.

My query is from Mechanism in section Simple Mechanisms of Machine Kinematics

Answer 1

Right choice is (d) all of the mentioned

The explanation is: All the mechanisms mentioned above are forms of single slider crank chain only and hence, they all contain three turning pairs and one sliding pair. The inversion of a single slider crank chain are found in the following mechanism:

a) Pendulum pump or Bull engine

b) Rotary internal combustion engine

c) Oscillating cylinder engine

d) Crank and slotted lever quick return motion mechanism

e) Whitworth quick return motion mechanism