Table 10.20
The following information is known about an assembly line.
The desired output rate is 80 units per hour.
$$\begin{array} { | c | c | c | }
\hline \begin{array} { c }
\text { Work } \
\text { Elements }
\end{array} & \begin{array} { c }
\text { Time } \
( \mathrm { sec } )
\end{array} & \begin{array} { c }
\text { Immediate } \
\text { Predecessor(s) }
\end{array} \
\hline \text { A } & 40 & - - \
\text { B } & 36 & \text { A } \
\text { C } & 20 & \text { A } \
\text { D } & 2 & \text { A } \
\text { E } & 30 & \text { B, C } \
\text { F } & 34 & \text { D } \
\text { G } & 35 & \text { E } \
\text { H } & 5 & \text { F } \
\text { I } & 15 & \text { E, H } \
\text { J } & 40 & \text { H } \
\text { K } & 38 & \text { G, I, J } \
\hline
\end{array}$$
-Use the information in Table 10.20. Using the longest work- element time rule of line balancing, what is the theoretical minimum number of stations versus the number of stations needed?
A) 2 versus 3
B) 3 versus 3
C) 3 versus 4
D) 4 versus 2

Question

Table 10.20
The following information is known about an assembly line.
The desired output rate is 80 units per hour.
$$\begin{array} { | c | c | c | } 
\hline \begin{array} { c } 
\text { Work } \
\text { Elements }
\end{array} & \begin{array} { c } 
\text { Time } \
( \mathrm { sec } )
\end{array} & \begin{array} { c } 
\text { Immediate } \
\text { Predecessor(s) }
\end{array} \
\hline \text { A } & 40 & - - \
\text { B } & 36 & \text { A } \
\text { C } & 20 & \text { A } \
\text { D } & 2 & \text { A } \
\text { E } & 30 & \text { B, C } \
\text { F } & 34 & \text { D } \
\text { G } & 35 & \text { E } \
\text { H } & 5 & \text { F } \
\text { I } & 15 & \text { E, H } \
\text { J } & 40 & \text { H } \
\text { K } & 38 & \text { G, I, J } \
\hline
\end{array}$$
-Use the information in Table 10.20. Using the longest work- element time rule of line balancing, what is the theoretical minimum number of stations versus the number of stations needed?
A) 2 versus 3
B) 3 versus 3
C) 3 versus 4
D) 4 versus 2

Quizplus · Accepted Answer

The longest work-element time rule of line balancing assigns each work element to a separate station. In this case, the longest work element is 40 seconds, so the theoretical minimum number of stations is 3. However, the desired output rate is 80 units per hour, which means that the cycle time must be 45 seconds (3600 seconds per hour / 80 units per hour). The longest work element is 40 seconds, so the number of stations needed is 4.

Table 1020 the Following Information Is Known About an Assembly Line

Table 1020
the Following Information Is Known About an Assembly Line