Print reading for engineering and manufacturing technology 3rd edition madsen test bank

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CHAPTER 10-READING SECTIONS, REVOLUTIONS, AND CONVENTIONAL BREAKS TRUE/FALSE 1. The cutting plane line is a thin line that represents the section plane.

ANS: F

PTS: 1

2. Section lines are shown on all parts of a section, especially thin parts.

ANS: F

PTS: 1

3. A full section is a section view where the cutting plane extends completely through the object.

ANS: T

PTS: 1

4. Staggered interior features of an object are sectioned by the cutting plane line to align through the feature.

ANS: F

PTS: 1

5. The change in direction of the cutting plane line is less than 90° in an aligned section.

ANS: T

PTS: 1

6. Bolts, nuts, and webs are sectioned in a sectional view.

ANS: F

PTS: 1

7. True projection is always important between views on a print.

ANS: F

PTS: 1

8. A broken out section occurs when a small portion of a part is broken away to clarify or expose an interior feature.

ANS: T

PTS: 1

9. A section that appears in an auxiliary view is known as an auxiliary section.

ANS: T

PTS: 1

10. Break lines are basically the same for all objects and materials.

ANS: F

PTS: 1

11. A conventional break is used when a long object of a constant shape requires shortening.

ANS: T

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12. A removed section represents a portion of a part pivoted 90° and removed to show the section at that location.

ANS: T

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13. Hidden lines in multiple removed sections are omitted for clarity.

ANS: T

PTS: 1

14. A gasket is commonly sectioned even though it is a thin part.

ANS: F

PTS: 1

15. Interior portions of an object that are otherwise difficult to visualize can be described by the use of sections.

ANS: T

PTS: 1

16. Dimensioning to hidden features is a poor practice on a print.

ANS: T

PTS: 1

17. The cutting plane line is used in all sectioning practices.

ANS: F

PTS: 1

18. All pieces have coded cutting plane lines in an assembly section.

ANS: F

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19. The American Society of Mechanical Engineers document that governs sectioning techniques is ASME Y14.3 titled Multi and Sectional View Drawings.

ANS: T

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20. A revolved section is used when a feature that has a constant shape throughout the length is rotated so that the adjacent view shows the feature's constant shape.

ANS: F

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21. Multiple removed sections are generally arranged on the sheet in alphabetical order from left to right and top to bottom.

ANS: T

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22. Removed sections are generally placed in direct alignment with the cutting plane line.

ANS: F

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23. When cutting planes are labeled alphabetically, the labels can be any letters of the alphabet, except for I, O, Q, S, X, and Z. ANS: T

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24. Section lines are thick.

ANS: F

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25. Bronze and cast iron materials look the same in section.

ANS: F

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26. A half section is used typically for symmetrical objects; the cutting-plane line actually cuts through one quarter of the part. The sectional view shows half of the interior and half of the exterior at the same time.

ANS: T

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27. The direction of sight of a cutting plane line shows what part of the feature is viewed when the rest of it is taken away.

ANS: T

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28. A full section is drawn when the cutting plane extends completely through the object, usually along a center plane.

ANS: T

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29. Hidden features are dimensioned when they are exposed by using a sectional view.

ANS: T

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30. The sectional view is created by placing an imaginary cutting plane through the object as if you were to cut away the object and leave the area exposed.

ANS: T

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31. Any hidden features still left in a sectional view are not generally shown.

ANS: T

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32. The cutting plane line staggers to pass through an object when showing both offset sections and aligned sections.

ANS: T

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33. Half sections can be used when a symmetrical object requires sectioning.

ANS: T

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34. Cutting plane lines are labeled and the labels refer to the sectional view.

ANS: T

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35. When the cutting plane line actually removes one quarter of an object, it is called an offset cutting plane line.

ANS: F

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36. Section lines are shown in opposite directions on adjacent parts.

ANS: T

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37. When an aligned section is taken, the sectional view is shown as if the cutting plane is rotated to a plane perpendicular to the line of sight.

ANS: T

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38. Specific features of an object are commonly left unsectioned in a sectional view if the cutting plane line passes through the feature and parallel to the feature axis.

ANS: T

PTS: 1

39. An aligned section has the cutting plane staggered to pass through offset features of an object.

ANS: T

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40. The sectional view normally projects from the view that has the cutting plane just like multiview projection.

ANS: T

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41. A conventional revolution is used when the true projection of a feature results in foreshortening.

ANS: T

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42. A direction of sight line is used with a true projection multiview because it would not be as clear as using a preferred revolution.

ANS: F

PTS: 1

43. The cutting-plane line is a thick line representing the cutting plane. The cutting plane line can be shown using alternating long and two short dashes, or evenly spaced dashes.

ANS: T

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44. When the cutting plane line has labels A on each end, then the sectional view has the related title SECTION A-A placed below the sectional view.

ANS: T

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45. An alternate technique for placing the cutting-plane lines is called the reference arrow method. When using the reference arrow method for identifying sections, arrowheads point toward each end of the cutting-plane line and the section identification letters are placed at the ends of the cutting plane line.

The view title is placed above the removed section when using the removed arrow method.

ANS: T MULTIPLE CHOICE

PTS: 1

1. A machined piece of steel is in the shape of a cylinder. There are two parallel holes drilled through the cylinder on the circumference. Which of the following is (are) true? a. A revolved or removed section is the best application for sectioning this object. b. A section line is not necessary since the location of that line is obvious when the cylinder is viewed in section. c. Cutting plane lines are used in the view of the section of the cylinder to show where the cylinder has been cut. d. both b and c e. none of the above ANS: A

PTS: 1

2. A cylindrical solid shape is shortened to save space in the drawing. Which of the following is (are) true? a. The cylinder must have a constant shape throughout the entire length and cylindrical break lines are used. b. A short, thick, slightly irregular break line is drawn to show that the cylinder has been shortened. c. A jagged, thick, very irregular break line is drawn to show that the cylinder has been shortened. d. both a and b e. none of the above ANS: A

PTS: 1

3. When the desired section is revolved 90° onto a plane perpendicular to the line of sight, ____. a. an aligned section is used b. an auxiliary section is used c. a revolved section is used d. a broken out section is used e. none of the above ANS: C

PTS: 1

4. When the desired section has been cut out and is not seen elsewhere on the drawing, ____. a. an aligned section is used b. an auxiliary section is used c. a revolved section is used d. a broken out section is used e. none of the above ANS: D

PTS: 1

5. The break line for a copper tube is ____. a. the same as it is for any solid cylinder b. also used for irregularly shaped hollow cylinders c. made up of symmetrically shaped widths that are approximately 1/3 the radius d. both a and c e. none of the above ANS: E

PTS: 1

6. When using the option of a revolved section, ____. a. the piece rotated must be completely broken away from the rest of the object b. the piece rotated should have section lines

c. the piece rotated should not have dimensions describing it d. the piece rotated should be in a space close by and labeled with the appropriate cutting plane label e. none of the above ANS: B

PTS: 1

7. Multiple removed sections ____. a. must all have a line of sight that points the same direction b. must be the same scale as the part from which they were taken c. do not generally show hidden lines d. do not generally need to be labeled e. none of the above ANS: C

PTS: 1

8. An alternate removed section ____. a. needs to be properly labeled with the cutting plane label b. should be shown at the same scale as the part from which it came c. can be rotated around its own centerline and shown on the centerline outside the part d. both a and c e. none of the above ANS: C

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9. A cutting plane line staggers completely through an object at 90° angles. The section on the drawing is a(n) ____. a. full section b. half section c. aligned section d. removed section e. none of the above ANS: E

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10. A cutting plane line is shown completely through the object, passing through offset features of the object. The section on the drawing is a(n) ____. a. full section b. half section c. aligned section d. removed section e. none of the above ANS: C

PTS: 1

11. A portion of a part is broken away to clarify an interior feature; there is no associated cutting-plane line. a. Removed section b. Broken out section c. Revolved section d. Offset section e. none of the above ANS: B

PTS: 1

12. Which of the following objects are usually sectioned?

a. b. c. d. e.

gaskets bolts gear teeth webs none of the above

ANS: E

PTS: 1

13. The American Society of Mechanical Engineers document that governs sectioning techniques is ____. a. ASME Y14.5 titled Multi and Sectional View Drawings. b. ASME Y14.3 titled Sectional View Drawings. c. ASME Y14.3 titled Multi View Drawings. d. ASME Y14.3 titled Multi and Sectional View Drawings. e. none of the above ANS: D

PTS: 1

14. An object is shown using a third angle multiview. Part of the object is complex and not perpendicular or parallel to any of the three views. In this case, the use of ____ can be helpful in clarifying the complex detail. a. an auxiliary section b. a broken out section c. a revolved section d. an enlarged removed section e. none of the above ANS: A

PTS: 1

15. An irregular cylindrical object has an evenly spaced number of holes in its circular base. Which of the following is (are) true? a. A full section is warranted if there is an even number of holes in the circular base. b. An offset section is warranted if there are an odd number of holes in the circular base. c. A half section is all that is needed for a cylindrical object. d. A cutting plane line is not necessary with any cylindrical object. e. none of the above ANS: A

PTS: 1

16. When one-half of an object is removed to be able to see the remaining section, a(n) ____ has been used. a. half section b. removed section c. aligned section d. offset section e. none of the above ANS: E

PTS: 1

17. A print of a cylindrical object shows a half section as one of its views. Which of the following is (are) not true? a. The cutting plane line removes one quarter of the object. b. The hidden lines of the side of the object that was not sectioned show as thin, light lines. c. The centerline of the cylindrical object is omitted. d. both b and c e. none of the above

ANS: D

PTS: 1

18. A sectional view taken from the location of the section cutting plane and placed in any convenient location of the drawing, generally labeled in relation to the cutting plane. a. Removed section b. Revolved section c. Auxiliary section d. Broken out section e. none of the above ANS: A

PTS: 1

19. When a cutting plane extends completely through an object, usually along a centerline, ____. a. the cutting plane line is marked with an identifying letter b. a full section is shown c. the cutting plane arrows show the direction of sight d. both b and c e. all of the above ANS: D

PTS: 1

20. A cube-shaped object is shown on the print. The object is made up of cast iron and has several circular depressions placed at random on three surfaces. Which of the following is (are) true? a. A full section will probably describe the internal construction of the object adequately. b. A half section will probably describe the internal construction of the object adequately. c. An offset section will probably describe the internal construction of the object adequately. d. Multiple removed sections will probably describe the internal construction of the object adequately. e. none of the above ANS: D

PTS: 1

21. An advantage of a removed section has over a revolved section is that ____. a. a great deal of detail can be shown more effectively if the section is removed b. break lines are not necessary when using removed sections c. the section can exactly be shown in the place where the cutting plane line is d. both a and c e. none of the above ANS: A

PTS: 1

22. What is the difference between a regular removed section and a section that has been removed by the alternate removed section method? a. A removed section is labeled to match the cutting plane line, whereas a section removed by the alternate removed section method is not labeled in this way. b. A removed section can be placed almost anywhere on the drawing sheet, whereas a section removed by the alternate removed section method is placed in a particular area. c. A removed section shows the entire view except for hidden lines, whereas a section removed by the alternate removed section method is similar to a revolved section in that only the portion that is indicated as being removed is shown as rotated. d. both a and c e. all of the above ANS: E

PTS: 1

23. An alternate practice for providing removed and sectional views. a. Alternate method b. Rotated method c. Arrow method d. Removed method e. none of the above ANS: C

PTS: 1

24. A portion of a part is broken away to clarify an interior feature; there is no associated cutting-plane line. a. Aligned section b. Conventional break c. Broken out section d. Revolved section e. none of the above ANS: C

PTS: 1

25. Used typically for symmetrical objects; the cutting-plane line actually cuts through one quarter of the part. The sectional view shows half of the interior and half of the exterior at the same time. a. Full section b. Half section c. Broken out section d. Removed section e. none of the above ANS: B

PTS: 1

26. A cutting plane line is used in all but which of the following? a. a full section b. an auxiliary section c. a broken out section d. an alternate removed section e. both c and d ANS: E

PTS: 1

27. Three different materials are shown in the section view of an object. The upper portion is made of a bronze material and is a horizontal rectangular piece. Under the bronze material, the remaining space is evenly divided vertically with a steel material on the left and a cast iron material on the right. Which of the following is (are) true? a. If the bronze section lines are drawn at a 45° angle, then the steel and cast iron section lines could be drawn at a 135° angle. b. If the bronze section lines are drawn at a 45° angle, then the steel section lines could be drawn at a 135° angle, and the cast iron section lines could be drawn at a 90° angle. c. If the bronze section lines are drawn at a 135° angle, then the steel section lines could be drawn at a 45° angle, and the cast iron section lines could be drawn at a 180° angle. d. If the bronze section lines are drawn at a 135° angle, then the steel section lines could be drawn at a 45° angle, and the cast iron section lines could be drawn at a 60° angle. e. none of the above ANS: D

PTS: 1

28. A sectional view taken from the location of the section cutting plane and placed in any convenient location of the drawing, generally labeled in relation to the cutting plane. a. Removed section b. Revolved section c. Aligned section d. Offset section e. none of the above ANS: A

PTS: 1

29. A sectional view established by revolving 90 degrees, in place, into a plane perpendicular to the line of sight, generally used to show the cross section of a part or feature that has consistent shape throughout the length. a. Removed section b. Revolved section c. Aligned section d. Offset section e. none of the above ANS: B

PTS: 1

30. These can be used when a long object of constant shape throughout its length requires shortening. a. Conventional breaks b. Conventional revolution c. Broken out section d. Removed section e. none of the above ANS: A

PTS: 1

31. A revolved section ____. a. has a cutting plane line placed through the object to show where the section is taken b. can be drawn to a larger scale so close detail can be more clearly identified c. should be labeled to correspond with the cutting plane line d. all of the above e. none of the above ANS: E

PTS: 1

32. A long object has a constant shape along its entire length. It is made of 3mm thick steel, and is bent in two areas along its entire length so that viewing it from the end, it looks roughly like the letter "S".

Choose the best option seen on a print for this object from the following suggestions. a. Use a revolved section broken away so the section can be dimensioned and section lines put in. b. Use an auxiliary section projected directly from the view of the cutting plane line. c. Use a broken out section with a small break line to clarify the interior dimensions. d. Use a conventional revolution so that the object will not be distorted by foreshortening. e. Use a revolved section broken away so the section can be dimensioned.

ANS: E

PTS: 1

33. The cutting plane is offset through staggered interior features of an object to show those features in section as if they were in the same plane. a. Aligned section b. Removed section alignment method

c. Broken out section d. Offset section e. Use a revolved section broken away so the section can be dimensioned.

ANS: D

PTS: 1

34. A cylindrical object with a constant shape has a 28 cm hole drilled in it from one end of the object to within 10 cm of the other end. Another smaller hole is drilled in the object from the side of the object at a 45° angle through to the drilled hole in the middle of the object. The smaller hole intersects the center drilled hole at 4 cm from the bottom of the center drilled hole. Choose the best option for this object shown on a print from the following suggestions. a. A revolved section broken away so the section can be dimensioned and section lines put in. b. An auxiliary section projected directly from the view of the cutting plane line. c. A broken out section with a small break line to clarify the interior dimensions. d. A conventional revolution so that the object will not be distorted by foreshortening. e. A revolved section broken away so the section can be dimensioned.

ANS: C

PTS: 1

35. When an offset section is used, ____. a. the section shows dark vertical lines where the cutting plane lines changed direction at 90° b. hidden lines and centerlines are usually ignored c. the cutting plane line normally extends completely through the object to clearly display the location of the section d. the cutting plane line is drawn completely through the object usually along a center plane e. none of the above ANS: C

PTS: 1

36. General section lines ____. a. are evenly spaced b. are also the coded section lines for cast iron c. are not commonly used d. both a and b e. none of the above ANS: D

PTS: 1

37. An assembly section of adjacent parts of different materials has ____. a. general section lines at different angles should be used b. all parts need to have coded section lining c. larger parts need to have more section lines per area than smaller parts d. the rules for drawing section lines can be overlooked e. none of the above ANS: E

PTS: 1

38. An object has a very small internal portion dimensioned on a print. Given only this information, which of the following is a viable option for dimensioning the small portion of the object? a. A broken out section can be used, and the dimensioning placed at the object itself. b. A conventional break can be used to isolate the small portion of the object so that it can be dimensioned. c. An alternate removed section can be used with the removed section scaled up and dimensioned.

d. both a and c e. none of the above ANS: A

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39. Sectional views are also called ________, and the process of creating sections is referred to as _______. a. Sections, sectioning b. Sections, cut away c. Sections, section practices d. Sections, section applications e. all of the above ANS: A

PTS: 1

40. The cutting-plane line is a thick line representing the cutting plane and can be drawn using: a. alternating long and two short dashes b. evenly spaced dashes c. alternating long and three short dashes d. a and b e. none of the above ANS: A

PTS: 1

COMPLETION 1. ____________________ or _________________________ are used to describe in interior portions of an object that are otherwise difficult to visualize.

ANS: Sections, sectional views sectional views, sections PTS: 1 2. A _________________________ is drawn when the cutting plane extends completely through the object, usually along a center plane.

ANS: full section PTS: 1 3. A _________________________ is used when a symmetrical object requires sectioning and one quarter of the object is removed to create the section.

ANS: half section PTS: 1 4. The cutting plane of an ___________________ is offset through staggered interior features of an object to show those features in section as if they were in the same plane.

ANS: offset section

PTS: 1 5. The sectional view is created by placing an imaginary _________________________ through the object cutting away the area to be exposed.

ANS: cutting plane PTS: 1 6. The letters _______________ are not used for sectional view identification.

ANS: I, O, Q, S, X, and Z PTS: 1 7. If there are enough sectional views on a drawing to use up all of the letters of the alphabet, then _______ letters are used to label the cutting plane lines and related views, such as ___________.

ANS: double, AA-AA, AB-AB, and AC-AC PTS: 1 8. ____________________ are used to represent specific material section line symbols in the sectional view.

ANS: Coded section lines PTS: 1 9. Very thin features, less than .06 in. (4 mm) thick, can be shown on the print ____________ section lines.

ANS: without PTS: 1 10. The cutting plane line for an offset section is generally shown using ________ where it offsets through the staggered features.

ANS: 90° turns PTS: 1 11. The ________ cutting-plane line staggers to pass through offset features of an object, and normally the change in direction of the cutting-plane line is less than 90°.

ANS: aligned section PTS: 1 12. _____________ can be shown when a long object of constant shape throughout its length requires shortening to fit on a sheet or for creating a partial view.

ANS: Conventional breaks

PTS: 1 13. A _______________ can be shown when a feature has a constant shape throughout the length that cannot be shown in an external view, and the types of feature shapes that are common with are extrusions, spokes, beams, and arms.

ANS: revolved section PTS: 1 14. Multiple removed sections are generally arranged on the sheet in ________________ from left to right and top to bottom.

ANS: alphabetical order PTS: 1 15. An alternate technique for placing the cutting-plane lines is called the ________________. When using this method for identifying sections, arrowheads point toward each end of the cutting-plane line and the section identification letters are placed at the ends of the cutting plane line. The view title is placed above the removed section.

ANS: reference arrow method PTS: 1 SHORT ANSWER 1. What are coded section lines used for?

ANS: To represent specific material section line symbols in the section view.

PTS: 1 2. List four ways in which section view can be highly useful on a print.

ANS: Answer can include any four of the following: clearly displays design, creating stylized model views, working with complex assemblies with multiple components, visualizing assembly component relationships, accessing component elements when constraining existing components or creating components in-place.

PTS: 1 3. What are section lines and what are they used for?

ANS: Section lines are thin lines used in the view of the section to show where the cutting-plane line has cut through material.

PTS: 1

4. Describe the reference arrow method for sectional view identification.

ANS: When using the reference arrow method for identifying sections, arrowheads point toward each end of the cutting-plane line and the section identification letters are placed at the ends of the cutting plane line. The view title is placed above the removed section when using the removed arrow method.

PTS: 1 5. Name and describe the method used to locate sectional views on a sheet other than where the cutting plane lines appear.

ANS: When necessary, locate sectional views on a sheet other than where the cutting plane lines appear. The method for doing this is called cross-reference zoning and is used to indicate the location of a section back to the viewing location on a previous page. The sectional view is located on a different page and is labeled with the sheet number and zone of the cross-reference cutting plane. ASME Y14.3 does not recommend a specific zone and page identification system. The cutting plane and sectional views should have a note correlating each between sheets.

PTS: 1 6. Name the American Society of Mechanical Engineers document that governs sectioning techniques, and the ASME standard that covers the principles of drawing recommended cutting plane and section lines.

ANS: The American Society of Mechanical Engineers document that governs sectioning techniques is ASME Y14.3 titled Multi and Sectional View Drawings. The engineering standard Line Conventions and Lettering, ASME Y14.2, covers the principles of drawing recommended cutting plane and section lines.

PTS: 1 7. Describe how very thin features, less than .06 in. (4 mm) thick, are shown in a sectional view.

ANS: Very thin features, less than .06 in. (4 mm) thick, can be shown without section lines. When using this practice, only the outline is shown.

PTS: 1 8. Describe a half section application.

ANS: A half section is used when a symmetrical object requires sectioning. The cutting-plane line of a half section removes one quarter of the object.

PTS: 1 9. Describe an offset section.

ANS:

Staggered interior features of an object are sectioned by allowing the cutting-plane line to offset through the features creating an offset section. The cutting plane line for an offset section is generally drawn using 90° turns where it offsets through the staggered features.

PTS: 1 10. Describe an aligned section, and include information about how the sectional view is shown in relation to the cutting plane line.

ANS: Similar to the offset section, the aligned section cutting-plane line staggers to pass through offset features of an object. Normally the change in direction of the cutting-plane line is less than 90° in an aligned section. When this section is taken, the sectional view is drawn as if the cutting plane is rotated to a plane perpendicular to the line of sight.

PTS: 1 11. Specific features of an object are commonly left un-sectioned in a sectional view if the cutting-plane line passes through and parallel to the feature. List at least five of these types of features.

ANS: The types of features that are left un-sectioned for clarity are bolts, nuts, rivets, screws, rods, shafts, ribs, webs, spokes, bearings, gear teeth, pins, and keys.

PTS: 1 12. Describe the practice of conventional revolution and explain why true projection is a poor practice when this application is used.

ANS: When the true projection of a feature results in foreshortening, the feature should be revolved onto a plane perpendicular to the line of sight as in Figure 13.22. The revolved spoke shown gives a clear representation. The true projection is poor practice because the spoke is foreshortened.

PTS: 1