Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Textbook Question
Chapter 12, Problem 27RQ
How does variation in the measuring device (instrument) affect the measurements obtained on a component?
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Subject name: Theory and design for Mechanical measurements
Chapter 12 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 12 - Define accuracy or precision in terms of a...Ch. 12 - What does the nature of the process refer to?Ch. 12 - Suppose you have a pistol�shooting process that...Ch. 12 - Review the steps required to make a PC study of a...Ch. 12 - Why do not standard tables exist detailing the...Ch. 12 - Here are some common, everyday processes with...Ch. 12 - Why might the diameter measurements for holes...Ch. 12 - What are some common manufactured items that may...Ch. 12 - What are common reasons for sampling inspection...Ch. 12 - Fill in this table with one of the four following...
Ch. 12 - Now explain why when we sample, we cannot avoid...Ch. 12 - Which error can lead to legal action from the...Ch. 12 - Define and explain the difference between andX and...Ch. 12 - What is Cp, and why is a value of 0.80 not good?...Ch. 12 - Prob. 15RQCh. 12 - What are some of the alternatives available to you...Ch. 12 - Cpk is another process capability index. How does...Ch. 12 - In a sigma chart, are σ values for the samples...Ch. 12 - What is an assignable cause, and how is it...Ch. 12 - Why is the range used to measure variability when...Ch. 12 - How is the standard deviation of a distribution of...Ch. 12 - In the last two decades, the quality in...Ch. 12 - Figure 12.15 shows a bimodal check sheet...Ch. 12 - Control charts use upper and lower control limits....Ch. 12 - In Figure 12.10, what are the USL and the LSL,...Ch. 12 - What are four major branches (fishbones) on a...Ch. 12 - How does variation in the measuring device...Ch. 12 - What are Taguchi or factorial experiments, and how...Ch. 12 - How does the Taguchi approach differ from the...Ch. 12 - Why are Taguchi experiments so important compared...Ch. 12 - Explain what happed to improve the process inÂ...Ch. 12 - In Table 12.1, explain MOâ€�COâ€�MOO....Ch. 12 - What is a quality circle, and how might you apply...Ch. 12 - Which of the seven QC tools is being used inÂ...Ch. 12 - Go to a subway restaurant and develop a process...Ch. 12 - What do you estimate the standard deviation of...Ch. 12 - Is the dashed line in the figure labeled mean the...Ch. 12 - From the information given in the discussion and...Ch. 12 - What is the most glaring error in the figure, and...
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- Which of the following terms/ phrases describes the accuracy of measurement? a Depends on the instruments used b Standard deviation c Experimental error /Percent error d Reproducibility of a set of measurementarrow_forwardWrite a detail note on • Explain Errors in Measurements• Explain Types of Errors.arrow_forwardWhy do we need to calibrate temperature measuring devices?arrow_forward
- B1 (a) Sine bar of length 190.5 mm, slip gauge and dial test indicator is employed for the precise angle measurement in a workshop. At the end of the measuring process, the angle of the specimen found to be 410. Find the slip gauge setting value (for the zero deflection of dial test indicator) based on the above-mentioned data. b) Using the following observation and find the actual size of the specimen in mm. LC=0.05 mm.arrow_forwardCompare one point vs two point calibration: explain how it affects the measurement curve and accuracy of any one measurement point.arrow_forwardDiscussion: 1) discuss the methods of measurement and what is the accurate method. 2) What is the micrometer .and what are the types and uses of each type? 3) Specimen Dimension to Dimension Dimension be measured Measured Measured by Vernier by ruler External diameter Internal diameter Thickness Length 4) Do you have another method or appearance that may be used in measurement ?arrow_forward
- Q. Based on the calibration curves, find out the respective sensitivities of the displacement measurement. 1. Strain (UE) Strain (UE) 0.01 0.00 -0.01 -0.02 -0.03 -0.04 0.0 0.01 0.00 -0.01 -0.02 0 -0.03 -0.0003-0.0009 -0.04 Strain vs. Displacement (Pushing) -0.0369*x + -3.1E-03 R² = 0.984 0.0 0:0063 -0.011 0.1 0.2 0.3 -0.0152 -0.0049 0.1 0.2 -0.0088 -0.0195 0.3 Strain vs. Displacement (Releasing) -0.0378*x + 2.16E-03 R² = 0.991 -0.0231 -0.0265 -0.0124 -0.0163- 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Displacement (in) -0.02 -0.0298 0.4 0.5 0.6 Displacement (in) -0.0325 -0.0235 0.7 -0.0272 -0.0352 0.8 -0.0379 -0.0318 -0.0379 0.9 1.0arrow_forwardWhen several measured values agree with one another, the values are said to be accurate neither accurate nor precise both accurate and precise precisearrow_forwardDifferentiate the Measuring liquid and Measuring solid being compared on the two instances in terms of sensitivity.arrow_forward
- The type of error present in a measurement system which has error values as 10,20,30,40,10, is said to be systematic error. Select one: True Falsearrow_forwarda) What is the difference between accuracy and precision of a group of measurements? b) What is the most probable value of a group of measurements?arrow_forward1.The thickness of a gage block is measured five times using an instrument that has a resolution of 0.001 cm. The following measurements are obtained (in cm): 1.100, 1.110, 1.090, 1.095, and 1.105. The true gauge block thickness is known to be 1.050 cm. Use this information to answer the following questions: a. What errors or sources of measurement error can be identified in the example? (Hint: there are three). Identify each one as a random or systematic uncertainty. b. Estimate the magnitudes of each of these uncertainties. Wherever possible, estimate random uncertainties at a 95% probability/confidence level. c. Based on the uncertainties determined in part b, estimate the overall uncertainty of a measurement obtained by this instrument.arrow_forward
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