Table 921
Table 7 -A Line Balancing Solution Has Been Developed for the Assembly

question 203

Multiple Choice

Table 9.21
Table 7.21 The following information is given about an assembly line.
The desired output rate is 90 units per hour.
$$\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Work } \\\text { Element }\end{array} & \text { Time (sec) } & \begin{array} { c } \text { Immediate } \\\text { Predecessor } ( \mathrm { s } ) \end{array} \\\hline \mathrm { A } & 10 & - - \\\mathrm { B } & 6 & \mathrm {~A} \\\mathrm { C } & 15 & \mathrm {~A} \\\mathrm { D } & 20 & \mathrm {~B} \\\mathrm { E } & 12 & \mathrm {~B} \\\mathrm {~F} & 14 & \mathrm { C } , \mathrm { E } \\\mathrm { G } & 8 & \mathrm { D } \\\mathrm { H } & 20 & \mathrm {~F} , \mathrm { G } \\\hline\end{array}$$
-A line balancing solution has been developed for the assembly line for fertilizer spreaders at Green Grass,Inc.The desired output rate of 30 spreaders per hour will be achieved.The sum of times for all tasks performed on the line is 1200 seconds for each spreader assembled.This is the total productive time.Which of the following statements must be TRUE?

• A) The cycle time is 30 seconds per spreader.
• B) The "theoretical minimum" number of stations is 10.
• C) If solution calls for 12 stations, the efficiency is 80%.
• D) If the solution calls for 11 stations, the efficiency is 80%.

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Definitions:

Terrestrial Mollusks

Mollusks that live on land rather than in the sea or freshwater bodies; this group includes snails and slugs.

Gastropods

A class of mollusks typically having a one-piece coiled shell and including snails, slugs, and whelks, which are primarily marine, but also found in freshwater and terrestrial environments.

Gastrovascular Cavity

A central cavity in certain simple organisms, such as cnidarians, serving both digestive and circulatory functions.

Tentacle

Flexible, often elongated appendages found in some animals, like octopuses and jellyfish, used for sensation, locomotion, and feeding.