Study Guide: Product and Process Control

Question 1

Why is it important to identify materials used in producing a product?

Answer 1

Reduce risk

Question 2

Most effective method of account for and tracking product materials

Answer 2

Radio frequency identification

Question 3

Acceptance sampling is most appropriate when

Answer 3

Inspection costs are high

Question 4

Disadvantage of sampling inspection

Answer 4

Reject a lot that conforms due to variability in sampling

Question 5

Which tool is most appropriate when evaluating a sampling plan?

Answer 5

OC Curve

Question 6

A company requires a part on a small lot-by-lot basis. On which probability distribution should the OC curve of the sampling plan be based?

Answer 6

Hypergeometric

Question 7

How does the probability of acceptance change as the sample size increases

Answer 7

Pa Decreases

Question 8

What has the least effect on the OC Curve?

Answer 8

The lot size

Question 9

What is AOQL

Answer 9

Maximum average outgoing quality limit

Question 10

What type of sampling method is most appropriate for destructive testing

Answer 10

Sequential sampling

Question 11

What is a disadvantage of a single sampling plan?

Answer 11

They do not use tightened inspection

Question 12

Dodge-Romig tables use the AOQL and LTPD for plan selection. These plans are designed to

Answer 12

Minimize average total inspection

Question 13

Why is sampling integrity is important?

Answer 13

To ensure a product has not been contaminated during inspection

Question 14

Used to maintain Sample Integrity

Answer 14

Batch Control
Change Control
Configuration Control

Question 15

Tool thats used to determine conformance or non-conformance

Answer 15

Gauges

Question 16

Most common method for surface measurements

Answer 16

Stylus Averaging

Question 17

Which measurement tool is appropriate for a round shape?

Answer 17

Precision Spindle

Question 18

What tests tensile strength?

Answer 18

Non-destructive testing

Question 19

Slight changes in temperature where parts are measured for conformance could lead to:

Answer 19

Random error in measurement

Question 20

Info on the contribution to error of technicians or a labs procedures can be found in:

Answer 20

Measurement assurance protocols

Question 21

When measurements are consistently larger than reference value what has occurred:

Answer 21

Systematic error

Question 22

Goal of calibration is to maintain the systems’ ______

Answer 22

Accuracy

Question 23

What component contributes to accuracy?

Answer 23

Linearity

Question 24

The observed average minus the reference value

Answer 24

Bias

Question 25

Inherent fluctuations in the measurement system

Answer 25

Random Error

Question 26

Measurement error caused by humans, imprecise measuring devises, or poor methods:

Answer 26

Systematic Error

Question 27

The accuracy of a measurement system consists of (3)

Answer 27

Gage Bias
Linearity
Stability

Question 28

Repeatability and reproducibility describe

Answer 28

The precision of the measurement system

Question 29

Measures how changes in the size of the part being measured affect the bias of the measurement system

Answer 29

Linearity

Question 30

Variability of the test instrument when used to measure the same part

Answer 30

Repeatability

Question 31

Variability due to different operators or setups of the measurement system measuring the same part

Answer 31

Reproducibility

Question 32

This type of chart provides info about special causes of variation related to the gage R&R study

Answer 32

R Chart