Quality Question Bank
for Exam preparation

Quality- Q2. The parameters of s2 chart is specified using:

1. Normal Distribution
2. Geometric Distribution
3. Binomial Distribution
4. Chi-square distribution

Quality- Q3. The roof of house of quality shows the interrelationship between:

1. Functional Requirements
2. Design Attributes
3. Service Process
4. Manufacturing Process

Quality- Q4. Consider that for a process s bar (average standard deviation of 50 samples each of size 4) is found to be 10.04. The value of c4 (corresponding to sample size of .4) is .92. What is the estimated value of process standard deviation?

1. 10.91 (s bar/ c4 is an unbiased estimator of standard deviation)
2. 11.89
3. 12.67
4. 9.67

Quality- Q5. If the value of D4 = 2.547, D3=0, then what is the UCL and LCL for the R chart?

1. UCL=1.5, LCL=.4
2. UCL= 1.2, LCL=.2
3. UCL=1.5, LCL=0
4. UCL=1.6, LCL=0

Quality- Q6. When data is plotted on the control charts, the data is of two types: R and -bar. The R data represent points of a ______________ while the X-bar data represent points of a(n) ______________.

1. real sample; simulated sample
2. 100 percent sampling; 10 percent sampling
3. sampling run; average of several runs
4. random sampling; continuous sampling
5. random sample; cross-matrix sample

Quality- Q7. Given L=3 and p=.03, estimate the sample size that can be used for construction of a p chart.

1. 534
2. 321
3. 123
4. 291 ((1-p)*L2/p gives us an estimate of sample size)

Quality- Q8. 80% of the problems are found in 20% of the work is a concept of:

1. Edward Deming
2. Philip Crosby
3. Juran
4. Pareto

Quality- Q9. In a double sampling plan, let d1 be the number of defects in the first sample and d2 be the number of defects in the second sample. Let c2 be the acceptance number for both samples. The condition for rejection is:

1. D1+d2
2. D1+d2>c2
3. D1*d2>c2
4. D1*d2

Quality- Q10. The average run length can be defined as:

1. The beta risk for an x bar chart
2. The expected number of samples taken before any shift in process quality is detected
3. The number of samples used in the construction of x bar chart
4. The number of items per sample