SPC Methods and Philosophy MCQ

Test your knowledge with important SPC Methods and Philosophy MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more SPC Methods and Philosophy MCQs on Bissoy. Bissoy App

• Most frequent defects are the most dangerous/severe.
  ক

  True

  খ

  False
• Correlation in scatter diagram necessarily implies causality.
  ক

  True

  খ

  False
• Defect concentration diagram is a ___________
  ক

  Picture of the unit showing all relevant views

  খ

  Graph of defects with their frequency

  গ

  Time oriented summary of defects

  ঘ

  Graph to determine underlying causes of any defect
• Scatter diagram is a technique used in ______ step of DMAIC process.
  ক

  Define

  খ

  Analyze

  গ

  Improve

  ঘ

  Control
• Which of these is having an important role in regression modeling?
  ক

  Stem and Leaf plot

  খ

  Pareto chart

  গ

  Defect concentration diagram

  ঘ

  Scatter diagram
• Which of these is a useful plot for identifying a potential relationship between two variables of a process?
  ক

  Pareto chart

  খ

  Defect concentration diagram

  গ

  Scatter diagram

  ঘ

  Stem and Leaf plot
• Phase II of control chart applications contain __________
  ক

  Monitoring the process by comparing each sample statistic to control limits

  খ

  Comparison of a set of data from control limits

  গ

  Corrective action only to get data in control the process

  ঘ

  Initial measurement of data
• Defect concentration diagrams are an important part of ____________ step of DMAIC.
  ক

  Analyze

  খ

  Define

  গ

  Improve

  ঘ

  Control
• In Cause and Effect diagram, what procedure is adopted?
  ক

  First defects are identified and then the corresponding effects on working of product is determined

  খ

  First defects in a product are identified and then, the corresponding causes are discovered

  গ

  First causes of defects are plotted then the effects of them, i.e. defects are identified

  ঘ

  Causes and their effects are identified simultaneously
• Pareto chart is invented by from Italian economist ________
  ক

  Alfred Pareto

  খ

  Vilfred Pareto

  গ

  Jon Pareto

  ঘ

  Paulo Pareto
• Pareto charts are a main part of _____ steps of DMAIC.
  ক

  Measure and Analyze

  খ

  Define and Measure

  গ

  Define and Improve

  ঘ

  Analyze and Control
• Pareto chart identifies the ____________ defects not the ____________ defects.
  ক

  The most important, the most frequent

  খ

  The most frequent, the most important

  গ

  The smallest defects, the largest defects

  ঘ

  The largest defects, the smallest defects
• The graphical representation of the total frequencies of occurrence of each type of defects type against the various defect types will be called as ____________
  ক

  Check sheet

  খ

  Pareto chart

  গ

  Histogram

  ঘ

  Control charts
• Check sheet shows ___________
  ক

  If a process part is completed

  খ

  If the process components are all checked

  গ

  If the samples of the process are checked

  ঘ

  Time oriented summary of defects
• Which of these is not a part of magnificent seven of SPC?
  ক

  Pareto chart

  খ

  Check Sheet

  গ

  Scatter Diagram

  ঘ

  2k factorial design
• If an assignable cause is expected in the process, the subgroups taken subsequently should have a maximum difference.
  ক

  True

  খ

  False
• 14 points in a row alternating up and down the mean will not indicate action needed for any process for which a control chart is plotted.
  ক

  True

  খ

  False
• Which of these is not one of the sensitizing Western Electric rules that indicate “action needed” for Shewhart control charts?
  ক

  One or more points near a warning limit/control limit

  খ

  One point plots outside 3-sigma control limits

  গ

  Eight consecutive points plot on one side of the control line

  ঘ

  Two of 3 consecutive points plot beyond the 2-sigma warning limits
• Which of these statements, correctly describes the concept of rational subgroups?
  ক

  If assignable causes are present, the chances of difference between subgroups should be largest

  খ

  If assignable causes are present, the chances of difference between subgroups must be lowest

  গ

  If assignable causes are present, the chances of difference between the subgroups must be moderate

  ঘ

  If assignable causes are present, the chances of difference between the subgroups must be zero
• Decreasing sample size will ________
  ক

  Decrease the slope of OC curve

  খ

  Increase the slope of OC curve

  গ

  First decrease then increase the slope of OC curve

  ঘ

  Makes OC curve have 0 slope
• If for a process, the samples are taken 5 hrs apart and its ARL is 24.24, What will be ATS for it?
  ক

  121.2

  খ

  110.0

  গ

  113.3

  ঘ

  137.8
• What is the full-form of ATS?
  ক

  Average time to Stop

  খ

  Average Time to Start

  গ

  Average Time to Signal

  ঘ

  Average Time to Select
• For an average run length of 370, what will be the probability of a point falling out of the area between the control limits?
  ক

  0.0027

  খ

  0.0013

  গ

  0.0045

  ঘ

  0.0040
• ARL is termed as ____________
  ক

  Average Run Length

  খ

  Allocating Run Length

  গ

  Affected Run Length

  ঘ

  Assumed Run Length
• The inner limits in the “Two sets of limits” approach of the construction of control chart are called _____
  ক

  Action Limits

  খ

  Variable Limits

  গ

  Constant Limits

  ঘ

  Warning Limits
• If “two sets of limits” approach is taken to construct a control chart, what are the outer set of limits called?
  ক

  Action Limits

  খ

  Warning Limits

  গ

  Variable Limits

  ঘ

  Constant Limits
• If we decrease the distance between LCL and UCL, what will happen?
  ক

  Decreasing the possibility of type I error

  খ

  Increasing the possibility of type II error

  গ

  Increasing the possibility of type I error

  ঘ

  Decreasing the possibility of type II error
• Moving the UCL and LCL line far from the Center line means ____
  ক

  Decreasing the possibility of type I error

  খ

  Increasing the possibility of type II error

  গ

  Increasing the possibility of type I error

  ঘ

  Decreasing the possibility of type II error
• Control charts are not effective in defect prevention.
  ক

  True

  খ

  False
• Auto correlated stationary process data is dependent on each other.
  ক

  True

  খ

  False