Class 11 Engineering Graphics Chapter 6 Orthographic Projection of Right Regular Solids NCERT Solutions help students solve all 31 construction questions from the 2026-27 NCERT assignment. The PDF covers prisms, pyramids, cylinders, cones, frustums and the two-step method for inclined solid axes.
- Includes 31 solved construction answers from the NCERT chapter assignment.
- Covers axes perpendicular to H.P., perpendicular to V.P., parallel to both planes and inclined to one plane.
- Most drawing errors reduce when students pick the starting view from the axis condition.
What is Covered in Class 11 Engineering Graphics Chapter 6 NCERT Solutions?
Chapter 6 explains orthographic projection of right regular solids. Students learn how to draw front view and top view for prisms, pyramids, cylinders, cones, hemispheres and frustums.
| Axis position | Starting view | Final check |
|---|---|---|
| Perpendicular to H.P. | Top view first | Base is in true shape |
| Perpendicular to V.P. | Front view first | End face is in true shape |
| Parallel to both planes | Use resting condition | Axis stays parallel to XY |
| Inclined to H.P. | Simple position, then tilted front view | Final axis has the given angle |
| Inclined to V.P. | Simple position, then tilted top view | Final top view has the given angle |
Solid Projection Workflow for Chapter 6
Use one steady method for every question. Read the axis condition first, draw the simple position lightly, tilt the correct view if needed and then project the final view.
- Draw the XY reference line.
- Pick the first view from the axis condition.
- Mark the base shape, axis length and contact condition.
- Project the companion view using thin construction lines.
- Darken visible edges and add dashed hidden edges only at the end.
Axis Position and Starting View Table
The starting view changes with the axis. Axis perpendicular to H.P. means top view first. Axis perpendicular to V.P. means front view first.
- For an inclined axis to H.P., redraw the front view at the given angle.
- For an inclined axis to V.P., redraw the top view at the given angle.
- For cylinders and cones, circular faces may appear as ellipses in the final view.
Projection of Solids Video for Engineering Graphics
Source: Manas Patnaik on YouTube
How to Use the Chapter 6 Solutions PDF
Keep a blank drawing sheet beside the PDF. Read the quick solution first and then copy the numbered construction steps. After every drawing, check the starting view, axis angle and hidden edges.
- Use light lines for the first simple position.
- Label every point before redrawing an inclined view.
- Transfer distances from XY, not from the page border.
- Show hidden edges only after checking the final position.
Questions and Expert Solutions for Right Regular Solids
The question-card page gives every answer in collapsible tabs. Use it after trying each construction on your own sheet.
Also Check NCERT Resources for Chapter 6
| Resource | Link |
|---|---|
| NCERT Book PDF | Class 11 Engineering Graphics Chapter 6 Book PDF |
| Previous Chapter Solutions | Chapter 5 Orthographic Projection of Regular Plane Figures Solutions |
Class 11 Engineering Graphics NCERT Solutions Chapter-Wise
| Chapter | NCERT Solutions |
|---|---|
| Chapter 3 Circles, Inscribing and Circumscribing of Circles | Class 11 Engineering Graphics Chapter 3 Solutions |
| Chapter 4 Orthographic Projection of Points and Lines | Class 11 Engineering Graphics Chapter 4 Solutions |
| Chapter 5 Orthographic Projection of Regular Plane Figures | Class 11 Engineering Graphics Chapter 5 Solutions |
Class 11 Engineering Graphics Chapter 6 NCERT Solutions FAQs
Ques. What does Class 11 Engineering Graphics Chapter 6 cover?
Ans. It covers orthographic projection of right regular solids such as prisms, pyramids, cylinders, cones, hemispheres and frustums.
Ques. How many solved questions are in the Chapter 6 solutions PDF?
Ans. The PDF includes 31 solved NCERT assignment questions with quick solutions and expert construction steps.
Ques. Which view is drawn first when the axis is perpendicular to H.P.?
Ans. The top view is drawn first because the base appears in true shape on H.P.
Ques. Which view is tilted when the axis is inclined to V.P.?
Ans. The top view is redrawn at the given V.P. inclination, then the final front view is projected.
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