Core tool video: Test of Understanding Introduction to SPC - Exide Technologies

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Question 1 of 10

1. The purpose of statistical process control is:

To produce graphs to show the customer

Check operators do not make mistakes

To focus on effort detection

To help achieve and maintain a state of statistical control and to improve process capability

Question 1 of 10

Question 2 of 10

2. The use of statistical techniques should be linked to:

The control plan

The PFMEA

Work instructions

All the above

Question 2 of 10

Question 3 of 10

3. Before collecting any statistical data what should be ensured?

The customer is informed

The variation in the measurement systems is known

The production process has be operating for at least 3 months

100% inspection is undertaken

Question 3 of 10

Question 4 of 10

4. SPC can be used:

For only variable data

For only attribute data

For variable and attribute data

Where 100% inspection is utilised

Question 4 of 10

Question 5 of 10

5. The distribution of data can vary in:

Shape

Location

Spread

All the above

Question 5 of 10

Question 6 of 10

6. A histogram shows:

The change in data over time

A pair of charts showing the variation in average and range

Process variation as a distribution

The variation within the measurement system

Question 6 of 10

Question 7 of 10

7. An X-Bar R chart can be used for:

Attribute data

For individual measurements

Data collected in subgroups

Showing the capability of a process

Question 7 of 10

Question 8 of 10

8. Control limits are:

Calculated for the average chart

Calculated for the range chart

Calculated independent of the specification limits

All the above are correct

Question 8 of 10

Question 9 of 10

9. Special cause variation:

Is always operating within a process

Is shown by points inside the control limits

Means the process has to be stopped

Is events that can cause the process to be unstable

Question 9 of 10

Question 10 of 10

10. Rules for interpreting statistical charts can include:

7 consecutive points consistently increasing

4 points above the mean

7 consecutive points outside the control limits

3 points outside of the specification limits

Question 10 of 10

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Core tool video: Test of Understanding Introduction to SPC – Exide Technologies