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OPMA CH. 10 MC Part 3 Exam Questions
And Answers |Latest 2025 | Guaranteed Pass
Quality control charts usually have a central line and upper and lower control limit lines. Which
of the following are reasons that the process being monitored with the chart should be
investigated?
A. A single plot falls above or below the control limits
B. Normal behavior
C. A large number of plots are on or near the central line
D. No real trend in any direction
E. A change in raw materials or operators - Answer✔A
If there are 120 total defects from 10 samples, each sample consisting of 10 individual items in
a production process, which of the following is the fraction defective that can be used in a "p"
chart for quality control purposes?
A. 120
1
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B. 10
C. 8
D. 1.2
E. 0.8 - Answer✔D
If there are 400 total defects from 8 samples, each sample consisting of 20 individual items in a
production process, which of the following is the fraction defective that can be used in a "p"
chart for quality control purposes?
A. 400
B. 160
C. 2.5
D. 1.0
E. 0.4 - Answer✔C
You want to determine the upper control line for a "p" chart for quality control purposes. You
take several samples of a size of 100 items in your production process. From the samples you
determine the fraction defective is 0.05 and the standard deviation is 0.01. If the desired
confidence level is 99.7 percent, which of the following is the resulting UCL value for the line?
2
OPMA CH. 10 MC Part 3 Exam Questions
And Answers |Latest 2025 | Guaranteed Pass
Quality control charts usually have a central line and upper and lower control limit lines. Which
of the following are reasons that the process being monitored with the chart should be
investigated?
A. A single plot falls above or below the control limits
B. Normal behavior
C. A large number of plots are on or near the central line
D. No real trend in any direction
E. A change in raw materials or operators - Answer✔A
If there are 120 total defects from 10 samples, each sample consisting of 10 individual items in
a production process, which of the following is the fraction defective that can be used in a "p"
chart for quality control purposes?
A. 120
1
, ©FYNDLAY 2025 ALL RIGHTS RESERVED 12:36 PM A+
B. 10
C. 8
D. 1.2
E. 0.8 - Answer✔D
If there are 400 total defects from 8 samples, each sample consisting of 20 individual items in a
production process, which of the following is the fraction defective that can be used in a "p"
chart for quality control purposes?
A. 400
B. 160
C. 2.5
D. 1.0
E. 0.4 - Answer✔C
You want to determine the upper control line for a "p" chart for quality control purposes. You
take several samples of a size of 100 items in your production process. From the samples you
determine the fraction defective is 0.05 and the standard deviation is 0.01. If the desired
confidence level is 99.7 percent, which of the following is the resulting UCL value for the line?
2
