NivaarExam Prep

23-Ind-A5 Quality Planning, Control, and Assurance

Worked solutions to 13 past sittings (2013–2019), 78 questions. Pick a sitting, or start from a topic below.

Topics across the sittings

Topics that come up in more than one sitting, taken from the headings of our worked solutions. A topic counts once per sitting.

Questions by sitting

December 2019

  1. Question 1: Control-Limit Concepts, ISO 9000, and TQC vs. TQM
  2. Question 2: SPC Problem-Solving Tools, Deteriorating Processes, and CUSUM
  3. Question 3: Type I/II Errors, and a $p$-Chart for a Fraction-Nonconforming Process
  4. Question 4: Variables vs. Attributes Charts, and a $u$-Chart for Textile Imperfections
  5. Question 5: Concurrent Engineering, Robust Design, and a $2^{5-2}$ Fractional Factorial
  6. Question 6: Acceptance Sampling and a MIL-STD-105E Single Sampling Plan

December 2018

  1. Question 1: Cost of Quality, Supplier Certification, and ISO 9000
  2. Question 2: SPC Tools, an $\bar X$-$R$ Chart for Injection-Molded Part Weight, and Chart Design for Two Simultaneous ARL Targets
  3. Question 3: Type I/II Errors, a $p$-Chart for Personal-Computer Inspection, and Minimum Sample Size for Detection
  4. Question 4: Attribute Charts, the Case for a Positive $c$-Chart LCL, and a $u$-Chart for Paper-Mill Imperfections
  5. Question 5: Product/Process Design Stages, Taguchi Methods, and a Randomized-Block ANOVA for Vehicle Emissions
  6. Question 6: Inspection Strategies, Dodge-Romig Plans, and a MIL-STD-105E Sampling Plan

May 2018

  1. Question 1: Quality Philosophy, Six Sigma/TQM, Certification, and Concurrent Engineering
  2. Question 2: SPC Tools, X̄/S Control Charts, Fraction Nonconforming, and ARL
  3. Question 3: Process Capability — Non-normal Data, $C_p/C_{pk}/C_{pm}$, and Fraction Nonconforming
  4. Question 4: Attributes Charts — p vs. u, the c Chart's Inspection Unit, and a u Chart Build
  5. Question 5: Robust Design, and a $2^3$ Factorial Experiment on Tensile Strength
  6. Question 6: Acceptance Sampling — AQL/LTPD/AOQL, Sequential Sampling, and MIL-STD-105E

May 2017

  1. Question 1: Quality Philosophy, Concurrent Engineering, and Cost of Quality
  2. Question 2: Process Variation, Run Length, and the X̄-R Control Chart
  3. Question 3: X̄ vs. CUSUM/EWMA, and the X̄-S Control Chart
  4. Question 4: Reliability, the Bathtub Curve, and Weibull Analysis
  5. Question 5: Attributes Control Charts and a u-Chart for Disk-Drive Assemblies
  6. Question 6: Designed Experiments — Randomization, Blocking, and a 2³ Factorial

December 2016

  1. Question 1: Taguchi Philosophy, Cost of Quality, Supplier Certification, and Six Sigma
  2. Question 2: Attribute vs. Variable Control Charts and an $\bar X$–$R$ Chart with Two-Point ARL Design
  3. Question 3: Tolerance Limits, Process Capability, and Fraction Nonconforming from $C_p$, $C_{pk}$
  4. Question 4: Zone Rules and ARL, and an Individuals/Moving-Range Chart with Detection Speed
  5. Question 5: Attribute Charts, a $p$ Chart, and Detection Speed after a Proportion Shift
  6. Question 6: Acceptance Sampling Concepts and a MIL-STD-105E Single Sampling Plan

May 2016

  1. Question 1: Quality Planning, TQM, Taguchi's Quality Philosophy, and Quality Certification
  2. Question 2: Trend Charts, EPC vs. SPC and EWMA, and X̄/R Chart Design
  3. Question 3: The Bathtub Curve, Reliability Fundamentals, and Weibull Life-Data Analysis
  4. Question 4: Variables vs. Attributes Charts, the $p=0$ Decision Rule, and a $u$-Chart for Disk-Drive Nonconformities
  5. Question 5: Robust Design Stages and QFD, Taguchi Methods, and Two-Way ANOVA on Emissions Data
  6. Question 6: Acceptance Sampling Fundamentals, Dodge–Romig Plans, and a MIL-STD-105E Sampling Plan

December 2015

  1. Question 1: Quality Philosophy, Cost of Quality, Quality Planning and Designed Experiments
  2. Question 2: SPC Concepts, Control-Chart Sensitizing Rules, and an Individuals/Moving-Range Chart
  3. Question 3: Process Capability, Natural Tolerance Limits, and Detection-Speed Chart Design
  4. Question 4: Reliability, Constant Failure Rate, and Normal Life-Data Analysis
  5. Question 5: Attributes Charts — p-Chart Design, Revision, and ARL-Based np-Chart Sizing
  6. Question 6: Acceptance Sampling — Concepts and a MIL-STD-105E Single Sampling Plan

May 2015

  1. Question 1: Definitions of Quality, Six Sigma, Quality Certification, and Concurrent Engineering
  2. Question 2: Variation, $\bar X$/$R$ Control Charts, Fraction Nonconforming, and Shift Detection
  3. Question 3: Confidence Intervals vs. Natural Tolerance Limits, and Process Capability Indices
  4. Question 4: Attribute Control Charts and a $u$-Chart for Disk-Drive Assembly Nonconformities
  5. Question 5: Taguchi Methods, and a $2^3$ Factorial Experiment on Tensile Strength
  6. Question 6: Acceptance Sampling, MIL-STD-105E, and a Single Sampling Plan

December 2014

  1. Question 1: ISO 9000 Certification, Supplier Quality Trends, and TQC vs. TQM
  2. Question 2: Traditional vs. Special Control Charts, X̄/R Chart for Part Weight, and Chart Design for Two ARL Targets
  3. Question 3: Type I/II Errors and the OC Curve, a p-Chart for PC Inspection, and Minimum Sample Size for Shift Detection
  4. Question 4: p- vs. u-Chart and the Demerit Chart, Positive c-Chart LCL, and a u-Chart for Paper-Roll Imperfections
  5. Question 5: Taguchi's Three Design Stages, the Taguchi Toolkit, and a Two-Factor ANOVA on CO Emissions
  6. Question 6: Acceptance Sampling and MIL-STD-105E, Dodge-Romig LTPD/AOQL Plans, and a Single Sampling Plan for a Lot of 800

May 2014

  1. Question 1: QFD, Taguchi's Design Stages, Sampling vs. Capability, and EVOP
  2. Question 2: SPC Diagrams, Traditional vs. Special Control Charts, and Attributes Charts
  3. Question 3: X̄/S Charts for Sheet-Metal Thickness and Detection-Speed Chart Design
  4. Question 4: Process Capability Indices, Tolerance Limits, and a Hypothesis Test on C p
  5. Question 5: p- vs. np-Charts, a u-Chart for Furniture Scratches, and Chart Design for Fast Detection
  6. Question 6: 100% Inspection vs. Acceptance Sampling, MIL-STD-105E, and a Single Sampling Plan

December 2013

  1. Question 1: TQM, Six Sigma, Supplier Certification, and QFD
  2. Question 2: Pareto vs. Histogram, Trend Processes, and EWMA vs. CUSUM
  3. Question 3: OC Function, an $\bar X$-$R$ Chart for Steel-Beam Tensile Strength, and Chart Design for a 1.2$\sigma$ Shift
  4. Question 4: Stable/Capable Processes, Capability Indices, and Fraction Nonconforming from $C_p$/$C_{pk}$
  5. Question 5: Variables vs. Attributes Charts, and a $u$-Chart for Gas Water Heater Inspection
  6. Question 6: AQL vs. Dodge-Romig Sampling Plans, Sequential Sampling, and a MIL-STD-105E Plan

May 2013

  1. Question 1: Taguchi Philosophy, Quality Costs, and Six Sigma
  2. Question 2: SPC Sampling, EPC vs. SPC, and Why EWMA/CUSUM Beat the Shewhart Chart
  3. Question 3: Variation, Control/Specification/Tolerance Limits, and an Individuals Chart for Tensile Strength
  4. Question 4: Attributes Charts, a $u$-Chart for Disk-Drive Nonconformities, and Minimum Sample Size
  5. Question 5: Product/Process Design Stages, Taguchi Methods, and a Fractional Factorial Experiment
  6. Question 6: Acceptance Sampling, MIL-STD-105E Features, and a Single Sampling Plan

Undated paper

  1. Question 1: Quality Philosophies, Six Sigma/DMAIC, Certification vs. Awards, and Concurrent Engineering
  2. Question 2: Variation, Control vs. Specification vs. Natural Tolerance Limits, and an X̄/R Chart Build
  3. Question 3: Supplier's/Producer's Risk, $C_p/C_{pk}/C_{pm}$, and Fraction Nonconforming
  4. Question 4: p/np/c/u and Demerit-Point Charts, the $u_i=0$ Policy, and a u Chart Build
  5. Question 5: Product Design Stages, Robust Design, and a $2^3$ Factorial Experiment on Tensile Strength
  6. Question 6: MIL-STD-105E vs. Dodge-Romig LTPD, Process Capability vs. Sampling, and a Single Sampling Plan