Question

Which of the following pairs are correctly matched? Select the correct answer using the codes given below the pairs.   

Mechanism

1. Whitworth quick return motion

2. Oldham’s coupling

3. Scotch yoke

Chain from which derived

1. Single slider crank chain

2. Four bar chain

3. Double slider crank chain

Code:

         (a) 1 and 2          (b) 1, 2 and 3

        (c) 1 and 3          (d) 2 and 3