3. During construction of the quick-return mechanism, what is the length of the

Question

3. During construction of the quick-return mechanism, what is the length of the crank? Rocker Coupler 04 Crank O2 Ground Az A) 02A1-0.5 A182 B) 02A1-0.5 B1B2 C) 02A1-0.5 10281-0282 4. Which statement is NOT true for Cognate? E) The cognates of a mechanism should generate the same coupler curve. F) The cognates of a mechanism should provide the same velocities and accelerations. G) The cognates can have different geometry. H) The cognates can have different pivots to accommodate the space requirements. 5. Design a linkage that will give a symmetrical "single straight" shaped coupler curve. What are the linkage parameters? Assuming L2-20 inch. A) L1-40, L2-20, L3-50, L4-50, BP-50, Units are inches. y-180* ' Units are inches. =18 C) D) L1-20, L2-20, L3=40, L4:40, BP-40, Units are inches. Y=144°. L1-40, L2-20, L3:50, l4:50, BP:50, Units are inches. Y=144

Explanation / Answer

3) D ) O2A1= 0.5(A1B1-A2B2)

4) F) the congnates of a mechanism should provide the same velocities and accelearations

5) D) L1=40, L2=20, l3=SO, L4=SO, BP=50, Units are inches. gamma =180

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