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प्रश्न
Define chance cause
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उत्तर
These are small variations which are natural and inherent in the manufacturing process.
The variation occurring due to these causes is beyond the human control and cannot be prevented or eliminated under any circumstances
The minor causes which do not affect the quality of the products to an extent are called as Chance causes or Random causes.
For example Rain, floods, power cuts, etc.
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संबंधित प्रश्न
What do you mean by product control?
What do you mean by process control?
Define a control chart
Name the control charts for variables
Define R chart
Write the control limits for the R chart
In a certain bottling industry the quality control inspector recorded the weight of each of the 5 bottles selected at random during each hour of four hours in the morning.
| Time | Weight in ml | ||||
| 8:00 AM | 43 | 41 | 42 | 43 | 41 |
| 9:00 AM | 40 | 39 | 40 | 39 | 44 |
| 10:00 AM | 42 | 42 | 43 | 38 | 40 |
| 11:00 AM | 39 | 43 | 40 | 39 | 42 |
Choose the correct alternative:
A typical control charts consists of
Choose the correct alternative:
`bar"X"` chart is a
Choose the correct alternative:
R is calculated using
