Project Risk Management Quality Control & Assurance 2

Question 1

During a project, the team discovers that defects are consistently appearing in a specific module. Which quality control tool is BEST suited to identify the root cause?

Accepted Answer

Fishbone diagram

Answer

A fishbone (Ishikawa) diagram is specifically designed to identify root causes by mapping categories of potential causes to an observed effect.

Question 2

A quality assurance audit reveals that the team is not following the documented testing procedures. What is the PRIMARY purpose of this audit finding?

Accepted Answer

To improve processes and prevent future defects

Answer

QA audits are proactive activities aimed at improving processes and ensuring future work prevents defects, not punishing teams.

Question 3

What does a control chart's 'upper control limit' (UCL) represent?

Accepted Answer

A statistically calculated boundary beyond which a process is out of control

Answer

The UCL is calculated statistically (typically ±3 sigma from the mean) and signals when a process variation is non-random and requires investigation.

Question 4

Which of the following scenarios represents a Type II error in quality control testing?

Accepted Answer

Accepting a batch of products that actually fails quality standards

Answer

A Type II error (false negative) occurs when a defective product is incorrectly accepted as conforming, which is a risk to the customer.

Question 5

A project manager wants to reduce the cost of quality by shifting investment toward prevention rather than appraisal. Which action best supports this goal?

Accepted Answer

Implementing peer code reviews early in the development cycle

Answer

Prevention activities like peer reviews catch defects early when they are cheapest to fix, reducing reliance on costly downstream appraisal and failure costs.

Project Risk Management Practice Test

Project Risk Management Practice Test

Project Risk Management Quality Control & Assurance 2