CQE (CQE) Course 4

Question 1

A company tracks customer complaints, field failures, and returned goods. These metrics primarily measure which cost of quality category?

Accepted Answer

External failure

Answer

Customer complaints, field failures, and returns occur after product delivery, making them external failure costs.

Question 2

Which chart would a quality engineer use to monitor the average of a continuous variable in subgroups of size 5?

Accepted Answer

X̄-R chart

Answer

The X̄-R (Xbar-R) chart is the standard control chart for monitoring subgroup means and ranges when subgroup size is between 2 and 10.

Question 3

In reliability engineering, MTBF stands for:

Accepted Answer

Mean Time Between Failures

Answer

MTBF (Mean Time Between Failures) is the average time elapsed between one failure and the next for a repairable system.

Question 4

A supplier delivers a lot of 1,000 parts. Using ANSI/ASQ Z1.4 with an AQL of 1.0% at normal inspection level II, the engineer selects a sample. If the sample contains more defectives than the acceptance number, the lot is:

Accepted Answer

100% inspected and defectives replaced

Answer

When a lot is rejected under acceptance sampling, the standard practice is 100% inspection of the lot and replacement of nonconforming items.

Question 5

Which tool is used to systematically evaluate and rank alternative solutions using weighted criteria?

Accepted Answer

Decision matrix (weighted criteria matrix)

Answer

A decision matrix applies weighted scores to each alternative against defined criteria, enabling objective comparison and selection.

CQE - Certified Quality Engineer Practice Test

CQE - Certified Quality Engineer Practice Test

CQE (CQE) Course 4