Table 10.22
The production of a particular product consists of seven work elements. The desired output rate is 60 units per hour. The work element and their precedence relationships are given.
$$\begin{array} { | c | c | c | }
\hline \begin{array} { c }
\text { Work } \
\text { Element }
\end{array} & \text { Time } ( \mathrm { sec } ) & \begin{array} { c }
\text { Immediate } \
\text { Predecessor(s) }
\end{array} \
\hline 1 & 30 & - - \
2 & 15 & 1 \
3 & 20 & 2 \
4 & 15 & 3 \
5 & 30 & 3 \
6 & 25 & 4 \
7 & 30 & 5,6 \
\hline
\end{array}$$
-Use the information in Table 10.22. Using the longest work- element time rule, how many stations are required?
A) 2 stations
B) 3 stations
C) 4 stations
D) 5 stations

Question

Table 10.22
The production of a particular product consists of seven work elements. The desired output rate is 60 units per hour. The work element and their precedence relationships are given.
$$\begin{array} { | c | c | c | } 
\hline \begin{array} { c } 
\text { Work } \
\text { Element }
\end{array} & \text { Time } ( \mathrm { sec } ) & \begin{array} { c } 
\text { Immediate } \
\text { Predecessor(s) }
\end{array} \
\hline 1 & 30 & - - \
2 & 15 & 1 \
3 & 20 & 2 \
4 & 15 & 3 \
5 & 30 & 3 \
6 & 25 & 4 \
7 & 30 & 5,6 \
\hline
\end{array}$$
-Use the information in Table 10.22. Using the longest work- element time rule, how many stations are required?
A) 2 stations
B) 3 stations
C) 4 stations
D) 5 stations

Quizplus · Accepted Answer

The total time for all work elements is 165 seconds. With a desired output rate of 60 units per hour, the cycle time is 60 seconds per unit. Using the longest work-element time rule, the tasks are assigned to stations such that no station exceeds the cycle time. This results in 4 stations being required.

Table 1022 the Production of a Particular Product Consists of Seven

Table 1022
the Production of a Particular Product Consists of Seven