SPC uses two control charts to ensure quality in manufacturing: the sample mean (X-bar) chart and the sample range (R) chart. The control chart limits are established for X-bar and R charts based upon tolerances set during the design stage of the product. In most cases, problems are ________________ before any ___________ parts are produced, thus reducing scrap and rework.
A) diagnosed and resolved / substandard
B) identified / faulty
C) solved / defective
D) identified / new
E) fixed / defective

Question

Quizplus · Accepted Answer

The control charts are used to diagnose and resolve any problems with the manufacturing process before substandard parts are produced. This helps to reduce scrap and rework, thus improving the overall quality of the product. The other choices are not accurate because they do not accurately describe what the purpose of the control charts is, or they use words that are not appropriate in the context of quality control.

SPC Uses Two Control Charts to Ensure Quality in Manufacturing