SPC

SPC is a tool for ....

• obtaining cost effective quality,

• achieved by process monitoring and forecasting techniques

• predict problems before they occur. (defect prevention)

• All answer is correct

When the normal distribution exits the process is operating consistently and we can

• predict the process behavior

• eliminate cost non value added

• increase defects

• All Answer is correct

To control a process means to .....

• Keen Mean and Median is close

• Tolerance is closer

• Keep the bell shape normal

• Reduce the defects and increase prevention

What is poor quality?

• Meeting customer specs

• Not meeting customer expectations

• Lower process capability

• All Answer is Correct

What is cause of defects?

• Man factor

• Machine factor

• Measurement Factors

• All Answer is correct

Cp best value must be...

• Higher than 99%

• Haigher than 85%

• Higher than 1.33

• Higher than 0.99

I have CP = 1.7 but Cpk only 0.9, its mean....

• Low precise, High Accurate

• High precise, Low Accurate

• Low Accurate, Low precise

• High accurate, High Precise

Process tolerance is 6 Cm, anda standard deviation = 1 cm. So the CP =.......

• 6

• 5

• 2

• 1

SPC tools all is correct, Except.....

• IMR Chart

• X-R Chart

• X-S Chart

• QFD Matrix

If team only has USL, but don't have LSL. We suggest to team.....

• Set the LSL as own specs

• Forget the LSL