1. The theoretical minimum number of parts in a 3 prong electrical plug are,

a) 1-2

b) 3-5

c) 6-8

d) other _____________________ (specify, and justify your answer below)

(ans. b. 3 conductors and an insulator)



2. What features of a typical car windshield violate the principles of design for assembly (DFA)?

(ans. length to width, fragile)



3. Sketch out components of a calculator that would observe the rules of Design For Assembly



4. Redesign the part below for more efficient assembly


************ Boothroyd piston figure