GATE PI Quality Management PYQs & Answers — Page 2

Questions 11–20 of 24. Imported answers require independent review unless marked reviewed.

Topic practice 24 questionsPage 2 of 3

An in-control process has an estimated standard deviation of 2 mm. The specification limits of the component being processed are 120 ± 8 mm. When the process mean shifts to 118 mm, the values of the process capability indices,

and

, respectively, are,

Your answerChoose one option.

1.000, 1.667

1.333, 1.667

1.333, 1.000

1.000, 1.000

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The process capability ratio

is given by

Your answerChoose one option.

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A rectifying inspection is performed on a lot of size

using a Single-Sampling Plan with the sample size

and the acceptance number

. If the Acceptable Quality Level is 1.0%, the producer’s risk associated with the sampling plan (rounded off to the nearest integer) in % is

Your answerChoose one option.

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The SQC chart based on Binomial distribution is

Your answerChoose one option.

p chart

c chart

chart

R chart

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The average proportion non-conforming of 20 samples each of size 100 items is 0.12. The upper control limit for the relevant chart is _____ (round off to 2 decimal places)

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For a process which is in a state of statistical control (within

), estimated process standard deviation (

) is 3 mm. The specification limits for the corresponding product are 100 ± 7 mm. The capability ratio

is _____ (round off to 3 decimal places)

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An acceptance sampling plan is selected with sample size

, acceptance number

for a lot size of 10,000 units. The probability of accepting the lot is based on Poisson distribution. Assuming rectification inspection, if incoming lot quality

is 0.03 and mean (

) is 2.4, the average outgoing quality (AOQ) is closest to

Your answerChoose one option.

0.0011

0.087

0.170

0.038

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A process which is in a state of statistical control (within ±3σ) has an estimate of standard deviation (σ) 2 mm. The specification limits for the corresponding product are 120 ± 8 mm. When process mean shifts from 118 mm to 122 mm with no change in process standard deviation, the difference in process capability index

is ______

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Which one of the following is the most appropriate control chart for measuring the variability of individual readings within a sample?

Your answerChoose one option.

-chart

R-chart

p-chart

c-chart

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Each of three firms P, Q and R manufactures 100 lakhs components. The number of defective components produced by P, Q and R are 30, 42 and 47, respectively. The firm(s) in conformance with Six Sigma standard is/are

Your answerChoose one option.

only P

P and Q

P, Q and R

Q and R

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GATE PI Quality Management PYQs

Question 27

Question 22

Question 34

Question 14

Question 22

Question 23

Question 35

Question 51

Question 8

Question 12