Production and Industrial Engineering
GATE PI Quality Management PYQs
Build your understanding with focused practice from past exam papers.
Questions 21–24 of 24. Imported answers require independent review unless marked reviewed.
Question 15
Open questionPINAT1 markNeeds review
A Shewhart
-chart was developed for an in-control process. Considering the probability of a point falling outside the
control limits as 0.0026, the value of average run length for this chart is __________.Log in to check the answer
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Open questionPIMCQ1 markNeeds review
The operating characteristic curves of three single sampling plans X, Y and Z with same lot size and acceptance number are shown in the Figure.
Considering the above operating characteristic curves, the correct relationship of the plans with respect to sample size is
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 43
Open questionPINAT2 marksNeeds review
Quality control department of a company maintains ‘c’ chart to assess the quality of laptops. In this process, twenty laptops are examined randomly. The number of nonconformities observed per laptop is given in the Table.
Laptop number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of nonconformities | 1 | 3 | 7 | 4 | 10 | 6 | 1 | 5 | 4 | 3 | 6 | 4 | 2 | 7 | 4 | 2 | 9 | 8 | 5 | 2 |
Based on the data, the upper control limit for the ‘c’ chart is (up to two decimal places).
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 46
Open questionPINAT2 marksNeeds review
A firm manufactures capacitors using a specialized process. The desired specification for the capacitance is 40 ± 10 picofarads (pF). The process used is in statistical control. If the process mean is 41 pF and the estimated standard deviation is 3 pF, then the process capability index
isLog in to check the answer
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