The process design team at a manufacturer has broken an assembly process into eight basic steps, each with a required time and predecessor as shown in the table. They work a 7 hour day and want to produce at a rate of 360 units per day. What should their takt time be? $$\begin{array} { | c | c | c | }
\hline \text { Task } & \text { Time } ( \mathrm { sec } ) & \text { Predecessor } \
\hline \text { A } & 45 & \cdots \
\hline \text { B } & 50 & \text { A } \
\hline \text { C } & 40 & \text { A } \
\hline \text { D } & 55 & \text { B, C } \
\hline \text { E } & 40 & \text { D } \
\hline \text { F } & 65 & \text { D } \
\hline \text { G } & 25 & \text { E } \
\hline \text { H } & 35 & \text { F, G } \
\hline
\end{array}$$
A)70 seconds
B)65 seconds
C)52 seconds
D)25 seconds

Question

The process design team at a manufacturer has broken an assembly process into eight basic steps, each with a required time and predecessor as shown in the table. They work a 7 hour day and want to produce at a rate of 360 units per day. What should their takt time be? $$\begin{array} { | c | c | c | } 
\hline \text { Task } & \text { Time } ( \mathrm { sec } ) & \text { Predecessor } \
\hline \text { A } & 45 & \cdots \
\hline \text { B } & 50 & \text { A } \
\hline \text { C } & 40 & \text { A } \
\hline \text { D } & 55 & \text { B, C } \
\hline \text { E } & 40 & \text { D } \
\hline \text { F } & 65 & \text { D } \
\hline \text { G } & 25 & \text { E } \
\hline \text { H } & 35 & \text { F, G } \
\hline
\end{array}$$
A)70 seconds
B)65 seconds
C)52 seconds
D)25 seconds

Quizplus · Accepted Answer

Takt time is the available production time divided by the demand rate. In this case, the available production time is 7 hours per day, or 25,200 seconds per day. The demand rate is 360 units per day. Therefore, the takt time is 25,200 seconds per day / 360 units per day = 70 seconds per unit.

The Process Design Team at a Manufacturer Has Broken an Assembly