Total Quality Management Set 7 MCQs

Q1 | The x bar chart monitors:

Between sample variability

Within sample variability

Instantaneous variability

Natural variability

Q2 | In case someone is interested in process standard deviation, he should construct the______________ chart.

X bar

R chart

S chart

None of the above

Q3 | If data for MR chat shows non-normality, it is better to determine the control limits for theindividuals control chart based on the ______________ of the correct underlying distribution.

Percentage

Percentiles

Rank

Mean

Q4 | A sample of size 10 contains 50 non-conformities. The average number of non-conformitiesis:

7

4

5 (50/10 i.e. total non-conformities/sample size)

1

Q5 | When the number of defects is low, which of the following is true:

We should use c or u chart

Most samples will have non-zero defects

Create a time between occurrence control chart

None of the above

Q6 | Bias reflects the:

The differences in observed accuracy and/or precision experienced over the range of measurements made by the system.

The difference between observed measurements and a "true" value obtained from a master or gold standard

Different levels of variability in different operating regimes, resulting from warm-up effects, environmental factors, inconsistent operator performance

None of the above

Q7 | If variability of a product decreases, its quality ______________

remains unchanged

decreases

increases

may increase or decrease

Q8 | The focal point of all quality control should be:

Price focus

Cost Focus

Customer Focus

Manufacturing Focus

Q9 | The key process input variables (KPIV) and key process output variables are developedduring the ______________ phase.

Define

Analyze

Measure

Improve

Q10 | An unbiased dice is rolled once. The probability of getting a number greater than 4 is:

¼

1/6

½

1/3

Q11 | Which of the following statement is false:

Important step of strategic quality management is identification of those dimensions in which the organization will compete

Selection of suppliers should be based on quality, schedule, and cost, rather than on cost alone

All of the individuals in the organization must have an understanding of the basic tools of quality improvement

Manufacturing Unit should be the unit focusing on Quality Improvement among all units in an organization

Q12 | Cause and Effect Diagram can be used in the ____ and ____ step of DMAIC.

Define, Measure

Analyze, Control

Analyze, Improve

Define, Improve

Q13 | Which of the following is false regarding when acceptance sampling is useful:

When testing is destructive

When 100% inspection cost is very low

When there are potentially serious product liability risk

When 100% inspection is not technically feasible

Q14 | Let p0 be the incoming fraction defective and p1 be the outgoing fraction defective(Assume both p1 and p0 is greater than 0). If rectifying inspection is performed then:

P0

P1

None of the above

Cannot be determined

Q15 | A company wants to measure the length of a fan as a part of its quality control exercise. Thetype of data collected will be:

Variable

Attribute

Cannot be determined

None of the above

Q16 | If only ______________ causes of variation are present, the output of a process forms adistribution that is table over time and is predictable.

Assignable

Non-Random

Natural

Cannot be said

Q17 | For an x bar chart, β risk can be defined as:

The probability of detecting the shift in process mean from μo (in control value) to μ1

The probability of not detecting the shift in process mean from μ0 (in control value) to μ1

The probability of detecting the shift in process range from μ0 (in control value) to μ1

The probability of not detecting the shift in process range from μ0 (in control value) to μ1

Q18 | 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?

10.91 (s bar/ c4 is an unbiased estimator of standard deviation)

11.89

12.67

9.67

Q19 | The basic assumption of calculating the control limits based on average sample size (for a pchart) will ______________ from/as those previously observed.

Greatly differ

Will be exactly the same

Not greatly differ

None of the above

Q20 | The g chart is the control chart for:

Average number of events

Total number of events

Mean number of events

None of the above

Q21 | Attribute charts may be used when:

Several characteristics can be jointly measured

When one particular quality characteristic is of importance

Specific information like process mean is required

None of the above

Q22 | The thickness of the blade of a fan is specified to lie between 4 cm and 6 cm. The length of the blades must lie between 10 cm and 20 cm. A fan blade randomly selected from a sample of 100 blades has a thickness of 5cm and a length of 21cm. The number of defect(s) the blade has is ______________.

One

Two

There is no defect

Three

Q23 | The probability of getting a multiple of 2 on throwing a dice once is:

1/6

¼

½

1/3

Q24 | Inspection of incoming/outgoing items is an example of ______________.

Prevention Cost

Appraisal Cost

Internal Failure Cost

External Failure Cost

Q25 | Four basic characteristics of an optimal process are:

Economy, efficiency, control, quality

Quality, Improvement, efficiency, productivity

Economy, efficiency, productivity, cost

Economy, efficiency, productivity, quality