Total Quality Management

91. 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
Correct answer: (A)
10.91 (s bar/ c4 is an unbiased estimator of standard deviation)

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

  1. Greatly differ
  2. Will be exactly the same
  3. Not greatly differ
  4. None of the above
Correct answer: (C)
Not greatly differ

93. The g chart is the control chart for:

  1. Average number of events
  2. Total number of events
  3. Mean number of events
  4. None of the above
Correct answer: (B)
Total number of events

94. Attribute charts may be used when:

  1. Several characteristics can be jointly measured
  2. When one particular quality characteristic is of importance
  3. Specific information like process mean is required
  4. None of the above
Correct answer: (A)
Several characteristics can be jointly measured

95. 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 ______________.

  1. One
  2. Two
  3. There is no defect
  4. Three
Correct answer: (A)
One

96. The probability of getting a multiple of 2 on throwing a dice once is:

  1. 1/6
  2. ¼
  3. ½
  4. 1/3
Correct answer: (A)
1/6

97. Inspection of incoming/outgoing items is an example of ______________.

  1. Prevention Cost
  2. Appraisal Cost
  3. Internal Failure Cost
  4. External Failure Cost
Correct answer: (B)
Appraisal Cost

98. Four basic characteristics of an optimal process are:

  1. Economy, efficiency, control, quality
  2. Quality, Improvement, efficiency, productivity
  3. Economy, efficiency, productivity, cost
  4. Economy, efficiency, productivity, quality
Correct answer: (D)
Economy, efficiency, productivity, quality

99. ______________ diagram is used for identifying potential relationship between two variables.

  1. Pareto
  2. Ishikawa
  3. Histogram
  4. Scatter
Correct answer: (D)
Scatter

100. Lots for acceptance sampling should be ______________ and ______________.

  1. Homogeneous, Large
  2. Heterogeneous, Small
  3. Homogeneous, Small
  4. Heterogeneous, Large
Correct answer: (A)
Homogeneous, Large
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