Process Capability Analysis using a Histogram or a Probability Plot MCQ

Test your knowledge with important Process Capability Analysis using a Histogram or a Probability Plot MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Process Capability Analysis using a Histogram or a Probability Plot MCQs at Bissoy

• It is often desirable to supplement probability plots with more formal statistically based goodness-of-fit tests.
  ক

  True

  খ

  False
• When there is an interactive effect of processes on the tolerances, process capability can’t be used for the planning of production processes.
  ক

  True

  খ

  False
• Probability plots (when cumulative) are straight line.
  ক

  True

  খ

  False
• Which of these is a disadvantage of probability plot?
  ক

  They are not an objective procedure

  খ

  They don’t tell about the defect

  গ

  They are hard to interpret

  ঘ

  They can’t tell about mean of the data
• Probability plots are graph of ranked data plotted against the cumulative frequency, with a vertical scale chosen so that the cumulative distribution of assumed type is a _________
  ক

  Parabola

  খ

  Straight line

  গ

  Hyperbola

  ঘ

  Pulse
• Histogram generally is a __________
  ক

  Graphical representation of intervals of data plotted against frequency

  খ

  Ranked data versus the sample cumulative frequency

  গ

  Ranked data versus the frequency

  ঘ

  Diagram of unit giving the location of defects
• Which is more efficient in the case of small samples to find out the shape and spread of the distribution?
  ক

  Histogram

  খ

  Probability plots

  গ

  Designed experiments

  ঘ

  PDCA
• Probability plotting is not used to find __________
  ক

  The shape of distribution

  খ

  The center of distribution

  গ

  The spread of distribution

  ঘ

  The origin of defects
• Probability plotting is an alternative of _________ to find process capability.
  ক

  Control charts

  খ

  Histogram

  গ

  Designed experiments

  ঘ

  Acceptance sampling
• When the number of product units outside the LSL and the number of product units outside USL are same, the process is called?
  ক

  Centered process with poor process capability

  খ

  Centered process with great process capability

  গ

  Poorly centered process with poor process capability

  ঘ

  Poorly centered process with great process capability
• Which is not an advantage of histogram to check the process capability?
  ক

  Immediate impression of process

  খ

  Visual impression of process

  গ

  Fast interpretation

  ঘ

  Easy to find the location of defects
• Which of these is needed with the histogram to estimate the process capability?
  ক

  Acceptance sampling

  খ

  Scatter diagram

  গ

  Sample average

  ঘ

  Check sheet
• How many observations are needed at least, to plot a histogram which gives proper information about the process capability?
  ক

  100

  খ

  120

  গ

  50

  ঘ

  10
• Which can be used as an alternative for histogram for PCA?
  ক

  Check sheet

  খ

  Defect concentration diagram

  গ

  Stem-and-Leaf Plot

  ঘ

  Scatter Diagram
• How many primary techniques are there which are used in PCA?
  ক

  3

  খ

  2

  গ

  4

  ঘ

  5
• PCA (process capability analysis) can’t be used _____________
  ক

  To determine the process state of statistical control

  খ

  To reduce the variability in the process

  গ

  For specifying the location of defect

  ঘ

  For modifying or selecting a process
• Process capability can be expressed as a percentage outside of the specifications.
  ক

  True

  খ

  False
• Product characterization cannot be used for the determination of the state of the statistical control of the process by which, the products are made.
  ক

  True

  খ

  False
• Which of these is not one of the primary techniques used to find out the process capability?
  ক

  Histogram

  খ

  Probability plots

  গ

  Control charts

  ঘ

  Acceptance sampling
• In product characterization, we cannot say anything about _____________
  ক

  Dynamic behavior of the process

  খ

  Distribution of quality characteristic

  গ

  Process yield

  ঘ

  Fraction conforming to specifications
• When in PCA, we have only the sample unit of product without any direct observation of the process or the time history of the production, the PCA is also called ____________
  ক

  Product inspection

  খ

  Product characterization

  গ

  Product sampling

  ঘ

  Process design
• Which of these is not a major use of the PCA (Process Capability Analysis)?
  ক

  Prediction of how well the process will hold the tolerances

  খ

  Reduction of variability in process

  গ

  Establishing an interval between sampling

  ঘ

  Stating the need of the Acceptance sampling
• When we don’t have the mean, spread and the shape of probability distribution of one CTQ characteristic of a process, we can use ___________ for process capability analysis.
  ক

  Acceptance sampling

  খ

  Design of experiment

  গ

  p-chart

  ঘ

  Specifications on the quality characteristic
• Which of these is not necessary to find the process capability?
  ক

  Mean

  খ

  Standard deviation

  গ

  Spread

  ঘ

  Design of Experiments
• 0.27 percent outside the normal tolerances can be obtained using ____________
  ক

  6-sigma both sides of mean

  খ

  3-sigma both sides of mean

  গ

  2-sigma both sides of mean

  ঘ

  8-sigma both sides of mean
• μ – 3σ, is the LNTL for ______________
  ক

  3-sigma spread in distribution of CTQ characteristic

  খ

  1-sigma spread in distribution of CTQ characteristic

  গ

  6-sigma spread in distribution of CTQ characteristic

  ঘ

  4-sigma spread in distribution of CTQ characteristic
• For a six–sigma spread in the distribution of the product quality characteristic, the upper natural control limit will fall at _____________
  ক

  μ + 2σ

  খ

  μ + 3σ

  গ

  μ + 4σ

  ঘ

  μ + 6σ
• Which of these is used as the measure of process capability?
  ক

  Process mean

  খ

  Process standard deviation

  গ

  Sample standard deviation

  ঘ

  Six-sigma spread in the distribution of the product quality characteristic
• Determining process capability is an important part of _____________ step of DMAIC process.
  ক

  Analyze

  খ

  Define

  গ

  Control

  ঘ

  Measure
• The process of usage of statistical methods to determine the variability in a process and to reduce or completely eliminating the variability, is called ________________
  ক

  Process capability

  খ

  Process capability Analysis

  গ

  Process variability

  ঘ

  Process variability analysis