CQE (CQE) 4

Question 1

Which of the following best describes the purpose of a pre-control chart?

Accepted Answer

Monitor process centering and spread using specification limits divided into zones

Answer

Pre-control divides the specification range into green, yellow, and red zones to provide simple run-rule decision making without calculating control limits.

Question 2

When performing a root cause analysis, a fishbone (Ishikawa) diagram organizes potential causes into categories such as:

Accepted Answer

Manpower, Machines, Methods, Materials, Measurement, Environment

Answer

The classic 6M fishbone categories are Manpower, Machines, Methods, Materials, Measurement, and Environment (Mother Nature).

Question 3

An organization implementing a corrective action system should ensure that corrective actions address:

Accepted Answer

The root cause to prevent recurrence

Answer

Effective corrective action eliminates the root cause of a detected nonconformance to prevent it from recurring.

Question 4

The p-chart is the appropriate control chart for monitoring:

Accepted Answer

The proportion of nonconforming items in variable-size subgroups

Answer

The p-chart tracks fraction nonconforming (proportion) and accommodates variable subgroup sizes.

Question 5

Which statistical distribution is most appropriate for modeling time-to-failure data in reliability analysis?

Accepted Answer

Weibull distribution

Answer

The Weibull distribution is highly flexible and widely used in reliability analysis because its shape parameter β describes all three phases of the bathtub curve.

CQE - Certified Quality Engineer Practice Test

CQE - Certified Quality Engineer Practice Test

CQE (CQE) 4