Six Sigma SSGB Exam
Six Sigma Green Belt (Page 5 )

Updated On: 1-Feb-2026

Significant variation in process performance is a consequence of several causes that can be classified using terminologies shown here. (
Note: There are 2 correct answers).

  1. Common
  2. Random
  3. Uneducated
  4. Special
  5. Vital

Answer(s): A,D



The reason(s) for not marking the customer Specification Limits (SL) on a Control Chart is which of these? (
Note: There are 4 correct answers).

  1. Process control teams should not control a process based on SLs
  2. Displaying the SLs on a Control Chart sends a wrong signal toward process control
  3. Marking the SLs on a Control Chart is against the principle of charting
  4. By marking the SLs, one can confuse the operator as to what limits are critical
  5. By using mere Control Limits the process only needs to be in Statistical Control

Answer(s): A,B,D,E



A periodic time frame can be used to arrange for Control Limit and Center Line calculations with good SPC implementation in a process.

  1. True
  2. False

Answer(s): A



SPC charts typically have the most recent data point on the right hand side.

  1. True
  2. False

Answer(s): A



Which of these statements describe an undesirable situation when implementing SPC? (
Note: There are 2 correct answers).

  1. The lower Control Limit for the R chart is equal to zero
  2. The Control Limits are wider than the customer specification limits
  3. A process is in Statistical Control before implementation of SPC
  4. Attempt to use SPC for tracking transaction times at a warehouse
  5. Indication of the specification limits on the Control Chart

Answer(s): B,E



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