AMS 109 B

What does SPC stand for?

• sampling plan control

• statistical production control

• statistical productive control

• statistical process control

Which of the following are benefits of control charts (select all that apply)?

• ongoing control of process

• help process to perform consistently and predictably

• achieve higher quality, lower unit cost, higher effective capability

• common language for discussing performance of process

What type of action is usually required to reduce variation due to common causes?

• actions on the system by management

• local action by people close to the process

What type of action is usually required to reduce variation due to special causes?

• actions on the system by management

• local action by people close to the process

Which of the following is not a stage in the Continual Process Improvement Cycle?

• maintain

• improve

• analyze

• detect

Which of the following is not a type of attribute data?

• presence of required label

• scratches

• thickness

• burrs

Which of the following is not a type of variable data?

• tensile strength

• burn marks

• pH

• length

All of the following describe common causes except...

• consistently act on the process

• produce stable and repeatable distribution over time

• intermittent and unpredictable

• type of cause in a process in a state of statistical control

All of the following describe special causes except...

• affect only some of the process output

• one or more points beyond the control limits

• nonrandom patterns

• also called unassignable causes

A process is said to be in statistical control if... (select all that apply)

• effect of all special causes have been eliminated

• variation is only due to common causes

• absence of points beyond the control limits

• absence of nonrandom patterns