C2 Quality Assurance and Improvement 3

Question 1

Which quality cost category includes rework, scrap, and re-inspection performed before product delivery?

Accepted Answer

Internal failure costs

Answer

Internal failure costs arise from defects discovered and corrected before the product reaches the customer.

Question 2

A fishbone (Ishikawa) diagram categorizes potential causes under which classic set of headings in manufacturing?

Accepted Answer

Man, Machine, Material, Method, Measurement, Environment

Answer

The 6M categories (Man, Machine, Material, Method, Measurement, Environment) structure cause-and-effect analysis in manufacturing.

Question 3

Process capability index Cpk differs from Cp in that Cpk:

Accepted Answer

Accounts for how well the process mean is centered between specification limits

Answer

Cpk adjusts for process centering by taking the minimum of the upper and lower capability ratios.

Question 4

In the DMAIC improvement cycle, which phase is specifically focused on identifying and validating the root causes of the problem?

Accepted Answer

Analyze

Answer

The Analyze phase uses data and tools like hypothesis testing and fishbone diagrams to confirm root causes.

Question 5

An organization receives a customer complaint about product quality after delivery. The corrective action cost to resolve this complaint is classified as:

Accepted Answer

External failure cost

Answer

External failure costs are incurred when defects reach customers, including warranty, returns, and complaint handling.

C2 Practice Test

C2 Practice Test

C2 Quality Assurance and Improvement 3