OTM reading quizzes exam 1
A computer server experiences large fluctuations in the amount of data requests it receives throughout the day. Because of this variation, Little's Law does not apply. True or False
False
Balancing a process with a fixed sequence of activities will achieve a higher average labor utilization than balancing a process with no fixed sequence of activities. True/false
False
The implied utilization can never be bigger than 100 percent. True/false
False
The resource with the largest total demand rate is the bottleneck. True/false
False
Each chart has which three components (choose three)? A center line representing the average An upper line representing the maximum acceptable variation upwards A lower line representing the maximum acceptable variation downwards A center line representing the maximum acceptable variation centrally
Forecast of customer demand A center line representing the average An upper line representing last week's sample A lower line representing last week's sample An upper line representing the maximum acceptable variation upwards A lower line representing the maximum acceptable variation downwards
You measure the exact size of 100 ping pong balls from manufacturer A and then another 100 balls from manufacturer B. The balls of manufacturer B have a much larger variation. Means and specification limits for the two manufacturers are identical. Which of the two manufacturers has a higher process capability index? Manufacturer A Manufacturer B Cannot be determined from the given information
Manufacturer A
The R chart focuses on which performance measure? Range Average Proportion of defects Number of defects
Range
The primary purpose of the "Single-Minute Exchange of Die" philosophy is to reduce the setup time for a resource. increase the flow rate of a process. decrease the utilization of a process. eliminate resources that have setup times.
Reduce the setup time for a resource
Which car company is most often associated with the term lean operations? General Motors Ford Toyota Honda
Toyota
"Time between completions" is the fundamental basis of a capacity calculation True/False
True
A control chart of any type answers the question, "is my process in control?" True/false
True
A resource has an implied utilization of 150 percent. This is the highest implied utilization in the process. This means that the resource is the bottleneck. True/false
True
The bottleneck resource in a process has the least idle time. True or False
True
For the purpose of process analysis, which of the following measures would be considered an appropriate flow unit for analyzing the main operation of a local accounting firm? Number of accountants Number of tax returns completed Number of customers with past-due invoices Number of reams of paper received from suppliers
Number of tax returns completed
How does the target manpower change as the demand rate increases? The target manpower increases. The target manpower stays the same. The target manpower decreases. Cannot determine from the given information.
The target manpower increases
As the attrition loss in a process increases, what happens to the yield? The yield increases. The yield stays the same. The yield decreases. Cannot determine from the given information.
The yield decreases
Capacity is directly related to: (Choose all that apply) Output Machines Time Processes
Output Machines Time Processes
To get capacity from time between completions you do which mathematical operation? Multiply times the length of the day Divide by the length of the day Subtract the length of an hour Take the inverse
Take the inverse
A worker in charge of assembling a bicycle finds a faster way to mount the pedals. He turns to his supervisor. The supervisor explains that the process had been optimized by the engineering department and so the worker should make sure to stick with the existing procedures. Which management scholar's work does this fit best? Taylor Ohno Womack Fujimoto
Taylor
Which of the following statements about Pareto diagrams is correct? The Pareto diagram shows the possible root causes of a problem but does not show the frequency of defect occurrences. The Pareto diagram shows the defects in order from most commonly occurring to least commonly occurring. The Pareto diagram shows the mean of a random sample at various points in time. The bars in the Pareto diagram have, on average, roughly the same height.
The Pareto diagram shows the defects in order from most commonly occurring to least commonly occurring.
What does X-bar stand for? The average of a sample The unknown standard deviation in a process that we have to solve for A shady bar in West Philadelphia The maximum observed value in a sample
The average of a sample
A nonbottleneck worker currently has an idle time of 20 seconds per unit. Because of the large demand, the company improves the process by adding more capacity to the bottleneck. How does this impact the idle time of the worker? The idle time would decrease. The idle time would stay the same. The idle time would increase. Cannot determine from the given information.
The idle time would decrease
What happens to the number of Kanban cards in the process if the replenishment time goes up? The number of kanban cards increases. The number of kanban cards stays the same. The number of kanban cards decreases. Cannot determine from the given information
The number of kanban cards increases.
Over the course of a month, which of the following is most likely to describe an appropriate flow unit for a process analysis of a hospital? The number of physicians The number of beds The square footage of the building The number of patients
The number of patients
How does the takt time change as the demand rate increases? The takt time increases. The takt time stays the same. The takt time decreases. Cannot determine from the given information.
The takt time decreases
What is the relationship between the number of kanban cards in a process and the inventory level? There is no relationship between the two. There never can be more inventory in the process than what was authorized via Kanban cards. The inventory of the process grows with the square root of the number of Kanban cards. The inventory of the process can be reduced by adding more Kanban cards.
There never can be more inventory in the process than what was authorized via Kanban cards.