QUESTION $2$

a$.$ Elemental Motortech, a large motorcycle model manufacturer, assembles model XTJ$3634$ handheld easy rider model bike at its Pasir Gudang, Johor plant. The assembly tasks that must be performed on each bike are shown in the Table $1$ below. The parts used in this assembly line are supplied by various materials$-$handling equipment used in each task. The assemblies are moved along the line between workstations. Elemental Motortech wants this assembly line to produce $32-$unit quantity bike per hours in $8$ hours shift a day. Explain how to:

i$.$ determine the cycle time per bike in minutes.

$(3$ mark$)$

ii$.$ illustrate the precedence diagram

$(15$ mark$)$

iii. find the minimum number of workstations.

$(3$ mark$)$

iv$.$ find the line efficiency.

$(3$ mark$)$

Table $1$

$\backslash$table$[[$TASK$,\backslash$table$[[$IMMEDIATE$],[$PREDECESSOR$]],\backslash$table$[[$TASK TIME$],[($minutes$)]]],[$A$,$Place frame on jig,$-,12],[$B$,$Attach engine in to frame,A$,6],[$C$,$Attach shocks and forks,B$,6],[$D$,$Attach handle bars,B$,2],[$E$,$Attach fender,B$,2],[$F$,$Attach wheels & brakes,B$,12],[$G$,$Attach fuel tank and other fluid,C$,$D$,7],[$containers$,,,],[$H$,$Attach air cleaner & exhaust system,G$,5],[$I$,$Attach item #$002,$E$,1],[$J$,$Attach item #$004,$I,F$,4],[$K$,$Attach item #$006,$H$,$J$,6],[$L$,$Testing & Packaging,K$,7],[,,,70]]$help