Exam Questions and Verified Answers
1. Which of the following is considered a prevention cost?
A. Scrap
B. Rework
C. Warranty claims
D. Employee training
2. What is the main purpose of a control chart?
A. To calculate process yield
B. To monitor process stability over time
C. To determine product cost
D. To calculate depreciation
3. A process with a Cp of 1.0 indicates that:
A. The process is not capable
B. The process spread equals the specification spread
C. The process mean is off-center
D. The process exceeds specifications
4. Which sampling method gives every unit an equal chance of being selected?
A. Stratified sampling
B. Cluster sampling
C. Judgment sampling
D. Random sampling
5. Which quality tool is most useful for identifying the most common causes of defects?
A. Scatter diagram
B. Flowchart
C. Histogram
D. Pareto chart
6. If a measurement system has poor repeatability, it means:
A. Different operators get different results
B. The gauge is expensive
,C. The same operator gets inconsistent results
D. The gauge is calibrated
7. The "Plan-Do-Check-Act" cycle was developed by:
A. Joseph Juran
B. Philip Crosby
C. W. Edwards Deming
D. Kaoru Ishikawa
8. Which of the following is a variable control chart?
A. p-chart
B. np-chart
C. c-chart
D. X-bar chart
9. In Failure Mode and Effects Analysis, RPN stands for:
A. Risk Process Number
B. Reliability Performance Number
C. Risk Priority Number
D. Response Prevention Number
10. A cause-and-effect diagram is also known as:
A. Pareto diagram
B. Scatter plot
C. Run chart
D. Fishbone diagram
11. Which distribution is commonly assumed in process capability studies?
A. Uniform distribution
B. Poisson distribution
C. Normal distribution
D. Binomial distribution
12. What does a histogram primarily show?
A. Relationship between variables
B. Process flow
C. Customer feedback
D. Frequency distribution of data
13. Which of the following is NOT one of the basic quality costs?
, A. Prevention
B. Appraisal
C. Internal failure
D. Marketing failure
14. In a process capability study, Cpk measures:
A. Only process spread
B. Only process centering
C. Process spread and centering
D. Production efficiency
15. Which chart is most appropriate for monitoring the number of defects per unit?
A. p-chart
B. np-chart
C. c-chart
D. X-bar chart
16. The primary purpose of calibration is to:
A. Improve employee morale
B. Reduce inventory
C. Ensure measuring equipment accuracy
D. Increase production speed
17. Which quality expert is most associated with the concept of "fitness for use"?
A. Deming
B. Crosby
C. Ishikawa
D. Juran
18. A scatter diagram is used to:
A. Show defect frequency
B. Identify relationships between two variables
C. Track process stability
D. Analyze customer complaints
19. In acceptance sampling, producer’s risk means:
A. Accepting bad lots
B. Rejecting good lots
C. Rejecting a good lot
D. Accepting a defective unit