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Exam 8: Facility and Work Design

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Question 41

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An assembly line with 28 operations is to be balanced. The total amount of time required for all 28 operations is 39 minutes. The longest operation takes 2.2 minutes and the shortest takes 0.8 minutes. The line will operate for 450 minutes per day. 1. Determine the minimun and maximu cycle time. 2. What is the output rate if the cycle tine is set at 2.2 minutes?

A) min cycle time = 0.8; max cycle time = 39; output rate = 204.5
B) min cycle time = 2.2; max cycle time = 39; output rate = 204.5
C) min cycle time = 2.2; max cycle time = 31.2; output rate = 562.5
D) min cycle time = 0.8; max cycle time = 2.2; output rate = 562.5

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Question 42

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Which is true for product layout?

A) Very flexible
B) Lower work-in-process inventories
C) High job satisfaction
D) Easy to add new products

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Question 43

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Self-managed teams perform entire jobs, rather than specialized assembly-line work.

Differentiate between a "flow blocking delay" and a "lack of work delay." How can each be reduced?

Assembly line balancing problems involving many distinct products mixed-model line balancing) are generally easier to solve than single-model balancing problems because there are more alternatives available to assign tasks to workstations.

Facility layout is not only concerned with the arrangement of physical facilities, but also the material handling capabilities within the facility.

Assembly line balancing

Changes in goods and services for a firm's customer benefit package do not impact facility layouts.

The eleven tasks necessary to assemble an MP3 player along with their time in seconds) and immediate predecessors) is given below: $\begin{array} { c c c } \text { Task } & \text { Time in secands) } & \text { Predecessors } \\\hline \text { A } & 40 & \text { none } \\\text { B } & 15 & \text { none } \\\text { C } & 35 & \text { none } \\\text { D } & 12 & \text { A, B } \\\text { E } & 27 & \text { B, C } \\\text { F } & 29 & \text { D } \\\text { G } & 60 & \text { D. E } \\\text { H } & 30 & \text { E } \\\text { I } & 14 & \text { F, G } \\\text { J } & 22 & \text { G, H } \\\text { K } & \underline{43} & \text { I. J }\\\text{Total}&327\end{array}$ Using this information, determine the theoretical minimum number of work stations needed if the company wants to produce 600 units in a 9-hour 32,400 (seconds) day.

Process layouts generally require less investment in equipment than product layouts because the equipment is less specialized.

Cycle time is related to the output rate and the available time to produce output.

An assembly line with 28 activities is to be balanced. The total amount of time required for all 28 activities is 39 minutes. The line will operate for 450 minutes per day. What must the cycle time be to achieve an output rate of 400 units/day?

In a product layout, a breakdown of one piece of equipment will not cause the entire process to shut down.

Cellular layouts are designed according to the functional characteristics of equipment much in the same fashion as process layouts.

A fixed position layout is based on the sequence of operations that is performed during the manufacturing of a good or delivery of a service.

The typical layout of facilities in a hospital would be an example of a ____ layout.

A Gallup study showed that workers who are allowed to personalize their workplaces were no more productive than those who are not allowed.

____ is vertical expansion of job duties to give the worker more responsibility.

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. Which of the following statements must be true?