$[6]$

Question $1$

a$)$ Write one advantage of using quick$-$return mechanism? $[1]$

b$)$ Three position synthesis of coupler output is an example of motion generation. Explain why. $[1]$

c$)$ What is the basic purpose of Scotch$-$York mechanism? $[1]$

d$)$ How does crank$-$slider mechanism work? $[1]$

e$)$ What are the conditions of maximum and minimum transmission angles? Explain and draw the sketches $[1]$

f$)$ How to measure the transmission angle in crank$-$slider mechanism? $[1]$