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प्रश्न
What do you mean by process control?
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उत्तर
A production process is said to be under control if the products produced are according to the specifications; that is the characteristics are within the tolerance limits.
This is tested through the control charts.
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संबंधित प्रश्न
Mention the types of causes for variation in a production process
Define assignable cause
What do you mean by product control?
Choose the correct alternative:
The quantities that can be numerically measured can be plotted on a
Choose the correct alternative:
Variations due to natural disorder is known as
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The assignable causes can occur due to
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`bar"X"` chart is a
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R is calculated using
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The LCL for R chart is given by
The following are the sample means and I ranges for 10 samples, each of size 5. Calculate; the control limits for the mean chart and range chart and state whether the process is in control or not.
| Sample Number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Mean | 5.10 | 4.98 | 5.02 | 4.96 | 4.96 | 5.04 | 4.94 | 4.92 | 4.92 | 4.98 |
| Range | 0.3 | 0.4 | 0.2 | 0.4 | 0.1 | 0.1 | 0.8 | 0.5 | 0.3 | 0.5 |
