Practice Control Charts (18.2) - Objectives of Mix Design - Civil Engineering Materials, Testing & Evaluation - Vol 2

Practice: Control Charts

Lesson 18.2Objectives of Mix Design

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9 questions

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4 cards from this section. Quick, good the night before a test.
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Quiz
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6 sample questions

Question 1.
What is the purpose of a control chart?
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Think about its visual representation.
Question 2.
Define common cause variation.
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Consider the normal expected performance.
3Question 3.
What distinguishes common cause variation from special cause variation?
- Common cause is predictable; special cause is not.
- Common cause is sudden; special cause occurs regularly.
- Both are similar.
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Think about the causes' nature.
4Question 4.
True or False: Control limits are fixed and never change.
- True
- False
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Consider how data influences the chart.
Question 5.
Given a set of temperature readings from a manufacturing process over a month, plot a control chart and determine if any readings fall outside control limits. What actions should be taken based on your findings?
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Follow the steps for plotting and calculating you learned.
Question 6.
Imagine a factory reports frequently shifting averages in its production. How would you assess if these shifts are due to common causes or special causes? What steps would you recommend?
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Consider the data's historical context and look for patterns.

5 more questions in this section. Enroll free to practise them all.