1. Which of the following is not one of the inspection techniques identified by Shingo:

A. Source B. Informative C. Statistical D. Judgment

Asnwer to question #1: C. Statistical Shingo identified 3 inspection techniques: Judgment, Informative, and Source.

2. Judgment Inspection:

A. is a very effective inspection technique B. reduces defect rates dramatically C. used soley to discover defects after production D. should be used whenever possible

Answers to question #2: C. used soley to discover defects after production The other statements are false.

3. A setting function:

A. is a very effective inspection technique B. signals that a defect has occurred C. keeps a machine from operating when defects are likely to be produced D. is the link between inspection and the regulatory function

Answer to question #3: D. is the link between inspection and the regulatory function A setting function detects when the inspection outcome is not acceptable and invokes the regulatory function.

4. A regulatory function:

A. is the remedial action taken after a process goes out-of-control B. signals that a defect has occurred C. keeps a machine from operating when defects are likely to be produced D. B or C

Answers to question #4: D. (B or C) A regulatory function is an attention-getting signal (a buzzer, warning light or machine stoppage) that something is wrong. It can indicate a defect has just been made (in self-checks) or that it is about to be made (in source inspections).

5. Source Inspection:

A. reduces defect rates dramatically B. used soley to sort out defects after production C. should be avoided D. both A & B

Answer to question #5: A. reduces defect rates dramatically Source inspection checks the process for correct operating conditions before production occurs. The known causes of defects are either eliminated or corrected before production can create defects.

6. Which is not an informative inspection technique:

A. statistical process control B. acceptance sampling C. successive-checks D. self-checks

Answer to question #6: B. acceptance sampling Successive-checks, self checks and statistical process control are all informative inspection techniques. They provide information to help control the process. Acceptance sampling is used to infer whether a lot or shipment should be rejected

7. The correct ranking of Shingo's inspection techniques (from best to worst) is:

A. judgment, informative, source B. source, judgment, informative C. informative, source, judgment D. source, informative, judgment

Answers to question #7: D. source, informative, judgment Source inspection is the best because it prevents defects. Informative inspection help control the process but may allow defects to occur. Judgment inspection is the worst since it only sorts out defects.

8. Informative Inspection:

A. inspects products to help control the process B. inspects process to help control the product C. keeps a machine from operating when defects are likely to be produced D. should be avoided

Answer to question #8: A. inspects products to help control the process

9. Poka-Yoke:

A. replaces any quality system you are currently using B. can reduce or eliminate human error C. cannot be used to reduce process variance D. is only used for source inspection

Answer to question #9: B. can reduce or eliminate human error Human error is not easily detected using control charts because errors tend to be relatively rare and intermittent. Mistake-proofing (poka-yoke) can be an effective response to human error.