GATE Quality and Reliability: Quality Management – Previous Year Questions
11 GATE previous year questions on Quality Management (Quality and Reliability, Production and Industrial Engineering) with answers and explanations, from every paper.
- GATE 2021 PI Q13 – For a single-sampling attribute plan with acceptance number zero and sample size at most ten, which form describes the operating-characteristic curve?
- GATE 2021 PI Q36 – Four independent out-of-control rules are used simultaneously. Their Type-I error probabilities are 0.005,0.02,0.03,0.05. Find overall Type-I error…
- GATE 2021 PI Q37 – An in-control process has estimated standard deviation 2 mm and specifications 120 ± 8 mm. Its mean shifts to 118 mm. Find C p and C pk, respectively.
- GATE 2022 PI Q19 – Which control chart tracks the number of defects in a welded joint?
- GATE 2022 PI Q43 – Four products P,Q,R,S each have batch size 2 × 10⁷. Defective counts are 60,71,80,55 respectively. Which statement is true?
- GATE 2022 PI Q57 – Five samples of 80 mobile screens have defective counts 4,10,5,6,5. Find the p-chart upper control limit using ±3σ, as fraction defective to two…
- GATE 2023 PI Q33 – Thirty samples of size 100 contain 420 total nonconformities. Find the lower control limit of the control chart for number of nonconformities, to two…
- GATE 2024 PI Q44 – For an acceptance-sampling plan, which ONE OR MORE statements are true?
- GATE 2025 PI Q34 – Fifteen gearbox features are critical to quality. Of 40000 gearboxes produced last quarter, 1500 defects occurred in these features. Find DPMO…
- GATE 2025 PI Q62 – A broach produces key slots of mean size 10.56 mm and standard deviation 0.05 mm. For sample size five, find the X-bar chart upper control limit (two…
- GATE 2026 PI Q49 – For the ideal OC curve shown, p₀ is acceptable quality level (AQL) and p₁ is lot tolerance percent defective (LTPD). Which ONE OR MORE statements are…