Supply Chain Management - Chap 8
The efficiency of an assembly line is found by a ratio of the sum of all tasks times divided by the cycle time.
False
An assembly-line layout is similar to the basic production layout format of flow-shop layout.
True
Assembly lines are a special case of product layout.
True
Assembly-line balancing means assigning all necessary tasks to a series of workstations so that each workstation has no more than can be done in the workstation cycle time and so that idle time across all workstations is minimized.
True
Using the assembly-line balancing procedure, which of the following is the required cycle time if the production time in minutes per day is 1,440 and the required output per day in units is 2000?
0.72
You have just determined the actual number of workstations that will be used on an assembly line to be 8 using the assembly-line balancing procedure. The cycle time of the line is 10 minutes, and the sum of all that tasks required on the line is 60 minutes. Which of the following is the correct value for the resulting line's efficiency?
0.750
You have just determined the actual number of workstations that will be used on an assembly line to be 25 using the assembly-line balancing procedure. The cycle time of the line is 30 seconds, and the sum of all that tasks required on the line is 10 minutes. What is the line's efficiency? ___
0.80
Using the assembly-line balancing procedure, what is the required cycle time if the production time in minutes per day is 2,400 and the required output per day in units is 1,200?
2 minutes per unit
Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the six tasks that make up the job are 4, 6, 7, 2, 6, and 5 minutes, and the cycle time is 10 minutes?
3
Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the six tasks that make up the job are 7, 4, 7, 5, 3, and 6 minutes, and the cycle time is 8 minutes?
4 workstations
Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the eight tasks that make up the job are 7, 4, 7, 8, 9, 4, 3, and 6 minutes, and the cycle time is 8 minutes?
6
Using the assembly-line balancing procedure, which of the following is the required cycle time in minutes per unit if the daily production time is 480 minutes and the required daily output is 50 units?
9.6
Which of the following basic types of production layout formats is one in which equipment or work processes are arranged according to the progressive steps by which the product is made?
Assembly line layout
Which of the following is not among the suggestions for a good layout for manufacturing and back-office operations?
Brightly colored walls and good lighting
Which of the following is not a step in developing a manufacturing cell layout?
Disposing of leftover machinery and outsourcing ungrouped processes
As a general rule, manufacturing workstations should not be very close together.
False
Assembly lines are a special case of a project layout.
False
A manufacturing cell groups identical machines together to work on products having similar shapes and processing requirements.
False
A manufacturing cell groups the same or similar machines into cells to work on products that have dissimilar shapes and dissimilar processing requirements.
False
A project layout is similar to the basic production layout format of the workcenter.
False
Which of the following is a basic type of production layout format?
Manufacturing cell
Which of the following is not a benefit of a manufacturing cell layout?
Reduced cost
When balancing an assembly line, which of the following is not a way to reduce the longest task time below the required workstation cycle time?
Speed up the assembly line transfer mechanism
In the design of retail service layouts, the term "ambient conditions" could refer to which of the following?
Temperature
The term "servicescape" refers to which of the following?
The physical surroundings in which the service takes place
Which of the following basic types of production layout formats is one that has similar equipment or functions are grouped together?
Workcenter layout
Some of the suggestions for a good layout for manufacturing and back-office operations include which of the following?
Backtracking kept to a minimum
.Which of the following is not considered an input to the layout decision in facility layout analysis?
Cost per square foot of alternative facilities
Having a lot of interstage storage of materials is considered a good layout design for a manufacturing plant.
False
If the sum of the task times required to produce a product is 80 minutes and the cycle time for the same product is 15 minutes, the theoretical minimum number of workstations is 8 using the assembly-line balancing procedure.
False
In a good layout design for a manufacturing facility, it is acceptable to have backtracking by personnel in the delivery of a customer's product.
False
In balancing an assembly line, workstation cycle time has to be less than the time between successive units coming off the end of the line.
False
Systematic layout planning is used to design products.
False
The assembly-line balancing procedure determines the precedence relationships of manufacturing tasks.
False
Some of the suggestions for a good layout for face-to-face services include which of the following?
Lack of clutter
In the design of retail service layouts, the term "ambient conditions" could refer to which of the following?
Lighting
A workcenter is a basic production layout format in which similar equipment or functions are grouped together.
True
A workcenter layout is similar to the basic production layout format of job-shop.
True
A manufacturing cell layout is similar to the workcenter and assembly-line layouts.
True
A project layout is characterized by a high degree of task ordering.
True
A project layout is characterized by a relatively low number of production units in comparison with workcenter and assembly-line formats.
True
A straight-line flow pattern is considered a good layout design for back-office service operations.
True
For the purposes of assembly-line balancing, cycle time is found by dividing production time per day by the required units of output per day.
True
If the sum of the task times required to produce a product is 45 minutes and the cycle time for the same product is 10 minutes, the theoretical minimum number of workstations is 5 using the assembly-line balancing procedure.
True
In assembly-line balancing, the theoretical minimum number of workstations is found by a ratio of the sum of all task times divided by the cycle time.
True
In designing a production layout a flexible line layout might have the shape of a "U".
True
In designing a production line, a mixed-model line layout is used by JIT manufacturers.
True
The first step in balancing an assembly line is to specify the precedence relationships among tasks to be performed on the line.
True
The objective of a mixed-model line layout is to meet the demand for a variety of products and avoid building high inventories.
True
The objective of a retail service layout is to maximize net profit per square foot of store space.
True
The term "assembly line" refers to progressive assembly linked by some material handling device.
True
You have just determined the actual number of workstations that will be used on an assembly line to be 6 using the assembly-line balancing procedure. The cycle time of the line is 5 minutes, and the sum of all that tasks required on the line is 25 minutes. Which of the following is the correct value for the resulting line's efficiency?
0.833
We would expect to see in a manufacturing cell layout which of the following?
A small team of workers who turn out complete units of work
Which of the following is not a basic type of production layout format?
Process layout
In the design of retail service layouts, the term "ambient conditions" does not refer to which of the following?
Staffing
