In the below figure, PC is the connecting rod and OC is the crank making an angle with the line of stroke PO and rotates with uniform angular velocity at rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral C Q NO, the acceleration of the piston is zero when the crank OC and connecting rod PC are at right angles to each other.

• A. Correct
• B. Incorrect