Quality Question Bank
for Exam preparation

Q2. Two factors are said to interact when

1. the simple main effects of one factor are not homogeneous across all levels of the other.
2. the simple main effects of one factor are homogeneous across the levels of the other.
3. there are neither main effects nor simple main effects.
4. there are no main effects.

Q3. Q-Q plot is used to check:

1. Normality of the dataset
2. Number of defects
3. Process mean
4. Process standard deviation

Q4. A sequence of 3 operations has first pass yield (right first time) rates as follows: 93%, 87% and 92%. The first pass yield rate is:

1. 72%
2. 74%
3. 99%
4. 87%

Q5. Total quality costs include:

1. Prevention costs
2. Appraisal costs
3. Failure costs
4. All of the given options

Q6. Statistical sampling is a method to determine the conformance to requirement for some element or product of a project. The advantage of statistical sampling is that it ______________.

1. is a good tool o gain customer confidence during a period of high rejects
2. does not require an expenditure of resources
3. is accurate enough with a sampling of less than one percent
4. does not require 100 percent sampling of the elements to achieve a satisfactory inference of the population
5. needs to be conducted only when there is a problem discovered with the end product or when the customer has some rejects

Q7. A result is called "statistically significant" whenever

1. The null hypothesis is true.
2. The alternative hypothesis is true.
3. The p-value is less or equal to the significance level.
4. The p-value is larger than the significance level.

Q8. The ISO 9000 series is:

1. an international standard that describes a recommended quality system
2. intended to be applied only to manufactured products
3. a set of instructions for preparing control charts
4. a set of guidelines for quality
5. a set of forms and procedures to ensure quality

Q9. Just-in-time (JIT) is the concept of reducing inventories to:

1. 25% of former stock
2. Less than half of former stock
3. 75% of peak stock
4. zero stock
5. 15% of the cost of the product for a planned stock

Q10. The ______________ is used to identify what might go wrong in a plan under development.

1. Pareto Chart
2. PDPC
3. Arrow Diagram
4. Matrix Diagram