Dos’ and Don’ts’ in the University Exam
Dear Students,
First of all I wish to thank all my colleagues for sharing their thoughts on this topic and helping me to write such a thing.
Free Hand Sketching
Dos'
1.Name the Views
2.Placed in proper position
3.If arrow head is not given in the drawing , most informative side should be taken as F.V
4.Ensure top view properly with out confusing with other views.
5.Invisible lines should be drawn using dotted line.
Don’ts
1.Don’t use scale for free hand sketching.
Conic sections and Special Curves
Do s
1 Eccentricity value should be converted into fraction.
2 Eccentricity value should be noted at the curve.
3 Use proper scaling while drawing conic sections for larger values.
4 Indicate tangent & normal properly.
5 Mark the axis of centre for epicycloids & Hypocycloid.
6 Care should be taken while numbering the generating circle for special Curves.
Don’ts
Avoid using compass for drawing circular invaluable.
Projection of Points, Lines and Planes
Do's Don’ts
1.Use proper notation
Front View – lower case letters with (a’) top view - lower case letters.
Avoid capital letters in Front View & Top view,
Avoid using projectors as a dimensioning line
2.Lines
Ө+ Ø = 90 0 both front view & top view in Perpendicular.
Avoid drawing the projectors in thick line.
3.Final projections should be thick line
3.Write down the TL, Ө,Ø, α, β separately.
4.Ensure Angle of inclination properly.
5. Planes
Take surface inclination first.
Projections of Solids
Do s
1.Ensure whether the question is Prism or Pyramid
2.For pyramid in the true shape draw the slant edges.
3.Mark the axis & dotted line properly.
4.Ensure resting part of solid properly.
5.Ensure given inclinations are marked properly.
6.Make sure that the axis & base edge is always perpendicular to each other.
7.While getting the final view, name the intersection of projector properly.
8.Name all the points properly.
Don’ts
1.Don’t extent the projectors from the true shape beyond the reference line.
2.Don’t forget to draw the boundary of any view.
3.Don’t draw the axis line as dotted line.
Section of Solids
Do s
1.Proper location of cutting planes
2.Make double sure the section plane inclination with respect to reference line.
3.Draw the section plane line properly (for pyramid & cone).
4.Make sure that point of intersection of section plane and axis/edges coincide the axis transferred properly.
5.True shape should be drawn using perpendicular projectors from the cutting plane.
Don’ts
Avoid using dotted line for sectional line.
Avoid using dark line while hatching the true shape & sectional view.
Development of surface
Do s
1.Use capital letters while drawing developed surfaces.
2.Draw smooth curve for joining points in truncated cone & cylinder.
3.For pyramid draw the base edges
4.Draw the removed portions using thin lines.
Don’ts
1.Avoid drawing thick lines while developing cylinder & cone.
2.Avoid joining the points using free hand curve.( For truncated prism and pyramid)
3.Don‘t draw the base edges for cone.
Isometric view
Do sDon’ts
1Use only co ordinate method for pyramid & cones.
2Ensure circle is drawn using 4 Centre method with compass.
“For the sake of convenience Isometric view is drawn “Since Isometric length = 0.816 X True length”.
Don'ts
Don’t draw the box using thick lines.Don’t for get to add & small note.
Perspective view
Do s
1.Use capital letters for final view only.
Don’ts
Don’t dimensioning the values with in the visual ray
General Points
1. Answer the questions familiar to you first.
2. Don’t forget to write the proper question number.
3. Even if correct solution with out question number carries zero mark.
4. Differentiate thick line, thin line, dotted line, Axis line, section plane line properly using appropriate pencil.
5. Avoid shuffling of the given data.
6. 6. Write all dimensions are in mm & scale ratio if applicable.
7. Don’t attempt to give details beyond the questions.
8. Make sure that all the given data are dimensioned in your solution.
9. Manage the time properly (for eg: 30 minutes per solution)
10. Use the last 30 minutes to verify all the above points.
Hope you all follow the above points and will secure good marks.
First of all I wish to thank all my colleagues for sharing their thoughts on this topic and helping me to write such a thing.
Free Hand Sketching
Dos'
1.Name the Views
2.Placed in proper position
3.If arrow head is not given in the drawing , most informative side should be taken as F.V
4.Ensure top view properly with out confusing with other views.
5.Invisible lines should be drawn using dotted line.
Don’ts
1.Don’t use scale for free hand sketching.
Conic sections and Special Curves
Do s
1 Eccentricity value should be converted into fraction.
2 Eccentricity value should be noted at the curve.
3 Use proper scaling while drawing conic sections for larger values.
4 Indicate tangent & normal properly.
5 Mark the axis of centre for epicycloids & Hypocycloid.
6 Care should be taken while numbering the generating circle for special Curves.
Don’ts
Avoid using compass for drawing circular invaluable.
Projection of Points, Lines and Planes
Do's Don’ts
1.Use proper notation
Front View – lower case letters with (a’) top view - lower case letters.
Avoid capital letters in Front View & Top view,
Avoid using projectors as a dimensioning line
2.Lines
Ө+ Ø = 90 0 both front view & top view in Perpendicular.
Avoid drawing the projectors in thick line.
3.Final projections should be thick line
3.Write down the TL, Ө,Ø, α, β separately.
4.Ensure Angle of inclination properly.
5. Planes
Take surface inclination first.
Projections of Solids
Do s
1.Ensure whether the question is Prism or Pyramid
2.For pyramid in the true shape draw the slant edges.
3.Mark the axis & dotted line properly.
4.Ensure resting part of solid properly.
5.Ensure given inclinations are marked properly.
6.Make sure that the axis & base edge is always perpendicular to each other.
7.While getting the final view, name the intersection of projector properly.
8.Name all the points properly.
Don’ts
1.Don’t extent the projectors from the true shape beyond the reference line.
2.Don’t forget to draw the boundary of any view.
3.Don’t draw the axis line as dotted line.
Section of Solids
Do s
1.Proper location of cutting planes
2.Make double sure the section plane inclination with respect to reference line.
3.Draw the section plane line properly (for pyramid & cone).
4.Make sure that point of intersection of section plane and axis/edges coincide the axis transferred properly.
5.True shape should be drawn using perpendicular projectors from the cutting plane.
Don’ts
Avoid using dotted line for sectional line.
Avoid using dark line while hatching the true shape & sectional view.
Development of surface
Do s
1.Use capital letters while drawing developed surfaces.
2.Draw smooth curve for joining points in truncated cone & cylinder.
3.For pyramid draw the base edges
4.Draw the removed portions using thin lines.
Don’ts
1.Avoid drawing thick lines while developing cylinder & cone.
2.Avoid joining the points using free hand curve.( For truncated prism and pyramid)
3.Don‘t draw the base edges for cone.
Isometric view
Do sDon’ts
1Use only co ordinate method for pyramid & cones.
2Ensure circle is drawn using 4 Centre method with compass.
“For the sake of convenience Isometric view is drawn “Since Isometric length = 0.816 X True length”.
Don'ts
Don’t draw the box using thick lines.Don’t for get to add & small note.
Perspective view
Do s
1.Use capital letters for final view only.
Don’ts
Don’t dimensioning the values with in the visual ray
General Points
1. Answer the questions familiar to you first.
2. Don’t forget to write the proper question number.
3. Even if correct solution with out question number carries zero mark.
4. Differentiate thick line, thin line, dotted line, Axis line, section plane line properly using appropriate pencil.
5. Avoid shuffling of the given data.
6. 6. Write all dimensions are in mm & scale ratio if applicable.
7. Don’t attempt to give details beyond the questions.
8. Make sure that all the given data are dimensioned in your solution.
9. Manage the time properly (for eg: 30 minutes per solution)
10. Use the last 30 minutes to verify all the above points.
Hope you all follow the above points and will secure good marks.
dos_5.pdf | |
File Size: | 87 kb |
File Type: |
Points to Remember | |
File Size: | 27 kb |
File Type: | docx |
line_inclined_to_both_planes.pdf | |
File Size: | 93 kb |
File Type: |