Enclosure 2: Statistical Process Control: GATE / AMIE / PSU Question Bank
GATE / AMIE / PSU Question Bank Statistical Process Control: A Step-by-Step Guide 🔹 Chapter 1: Introduction to SPC MCQs Statistical Process Control is primarily used to: (A) Inspect finished products (B) Improve process capability (C) Replace quality planning (D) Eliminate inspection Ans: (B) SPC is best described as a: (A) Corrective technique (B) Preventive technique (C) Detection technique (D) Sampling technique Ans: (B) Short Answer (1–2 marks) Define Statistical Process Control. State one objective of SPC. 🔹 Chapter 2: Statistical Foundations for SPC MCQs The measure most sensitive to extreme values is: (A) Mean (B) Median (C) Mode (D) Range Ans: (A) For a normal distribution, approximately what percentage of observations lie within ±3σ? (A) 95% (B) 97% (C) 99.73% (D) 100% Ans: (C) Numerical (GATE type) If σ = 2 mm, find process spread. Ans: 6σ = 12 mm 🔹 Chapter 3: Process Variation & Rational Subgrouping MCQs Variation inherent in a stable process is calle...