Engineering Graphics and Computer Aided Drawing. Question Papers, ktu 2024 scheme questions grouped by module and year, with worked solutions and links to the original papers..

Module 1 · Engineering graphics fundamentals

The retrieved regular papers contain no legible Module 1 question in the Notebook Agent transcript. See the linked originals if the scan includes this module.

Module 2 · Orthographic projection

The retrieved regular papers contain no legible Module 2 question in the Notebook Agent transcript. See the linked originals if the scan includes this module.

Module 3 · Sections and developments

2024 · Q5 · 15 marks

Question. The transcript preserves only the end of this problem: a cutting plane is perpendicular to VP, and the task is to draw the front view, sectional top view and true shape. The object/section details are cut off.

Solution. The missing dimensions and object prevent a unique drawing. General method: draw the required projections of the complete solid; show the edge-on cutting plane in the view perpendicular to VP; mark where it cuts each generator/edge; project those points to the sectional top view; hatch the cut surface; for true shape, draw an auxiliary reference parallel to the cutting plane and project each section point perpendicular to it. Check that the true shape uses actual distances along the plane.

2024 · Q6 · 15 marks

Question. A 500 mm diameter cylinder is cut by a 30° auxiliary plane through the extreme right point of its base. The shortest generator is 1000 mm. Develop the cut cylinder.

Solution. Draw the plan circle and divide it into equal generator points. Project the elevation and draw the cutting plane at the stated 30° orientation through the specified base point; project its intersections to each generator and mark the shortest generator as 1000 mm. For development, draw a stretch-out equal to $\pi D=1570.8$ mm, divide it into the same number of equal parts, and erect generators of the corresponding true lengths. Transfer each section height from the matching elevation generator and join the points smoothly. The cut height varies linearly with position across the plane; do not use one constant height for all generators.

2025 · Q5 · 15 marks

Question. A cylinder 60 mm high and 50 mm diameter rests on HP. A plane perpendicular to VP and inclined 40° to HP cuts its axis 10 mm below the top. Draw projections of the section and its true shape.

Solution. Draw plan and elevation with the axis perpendicular to HP. In elevation, mark the axis point 10 mm below the top and draw the edge view of the plane through it at 40° to XY. Divide the plan circle into equal points, project the corresponding generators to elevation, and mark intersections with the plane. Project those points back to plan for the sectional top view; hatch the cut. For true shape, draw an auxiliary reference parallel to the section plane and project each point perpendicular to it. The section is an ellipse because the oblique plane cuts all cylinder generators.

2025 · Q6 · 15 marks

Question. A cone of base diameter 50 mm and height 60 mm rests on HP. A plane perpendicular to VP and inclined 30° to HP bisects the axis. Draw the development of the truncated cone.

Solution. Draw the cone projections, divide the base circle, and project the generators. In elevation, mark the axis midpoint (30 mm above the base) and draw the section plane at 30° to XY through it. Find each generator’s section point. For radial-line development, compute the slant height $L=\sqrt{25^2+60^2}=65$ mm. Draw an arc of radius 65 mm and included angle $360°(25/65)=138.46°$; divide it into the same number of equal generator intervals as the base. Transfer the true apex-to-section distances along corresponding generators and join the transferred points. The remaining boundary is the developed truncated edge.

Module 4 · Isometric views and projections

2024 · Q7 · 15 marks

Question. A hemisphere of radius 50 mm rests centrally on a square prism of 40 mm base edge and 60 mm height, with its circular face upward. Draw the isometric projection.

Solution. Use isometric scale for the prism dimensions: 40 mm edges and 60 mm height become about 32.7 mm and 49.0 mm. Construct the prism’s top face as an isometric square and locate its centre. Draw the hemisphere’s circular base on that face using the isometric ellipse construction, then construct the hemispherical surface from the circle and centreline. The stated 100 mm diameter must fit across the 40 mm square face only if the intended contact/orientation permits an overhang; preserve the dimensions and show the overhang explicitly rather than silently reducing the hemisphere. Check the original diagram for the intended support arrangement.

2024 · Q8 · 15 marks

Question. A pentagonal pyramid (base side 30 mm, height 60 mm) rests centrally on a cylinder (diameter 90 mm, height 50 mm); one base edge is perpendicular to VP. Draw the isometric view.

Solution. Draw the cylinder at true isometric-view dimensions: isometric ellipse for its 90 mm circular ends, 50 mm vertical height, then join visible tangents. On the top ellipse, locate its centre and inscribe a regular pentagon of side 30 mm in plan, orienting the specified edge perpendicular to VP. Project its five vertices to the cylinder top plane, locate the pyramid apex 60 mm above the base centre, and join apex to each vertex. Show visible edges solid and hidden edges only if the required convention asks for them. Isometric view uses true lengths; do not apply the 0.816 isometric projection scale.

2025 · Q7 · 15 marks

Question. A 70 mm diameter sphere sits centrally on a cylindrical slab 60 mm diameter and 10 mm thick. Draw the isometric view.

Solution. Draw the 60 mm diameter, 10 mm thick slab with isometric ellipses. Mark the centre of the top face; draw the sphere as a 70 mm diameter circle centred on the vertical through that point. The sphere is larger than the slab, so it overhangs by 5 mm radially on each side. Use the true 70 mm diameter for an isometric view and distinguish the sphere tangent/contact point from the slab boundary.

2025 · Q8 · 15 marks

Question. A sphere of radius 25 mm rests on a rectangular block 80×60×15 mm. Its centre/contact is specified 30 mm from two adjacent top edges; draw the isometric projection with the long block edges perpendicular to XY and the sphere away from the observer.

Solution. Convert all block dimensions using the isometric scale 0.816: approximately 65.3×49.0×12.2 mm. Construct the isometric block. Locate the sphere’s contact point on the top face using the given 30 mm offsets (the original wording calls this point the sphere’s resting point; verify the reference edges in the PDF). Raise the sphere centre by its radius 25 mm in the vertical isometric direction. Draw the projected sphere as a circle with diameter approximately $0.816(50)=40.8$ mm, centred over the contact point, and position the visible outline to show it lies away from the observer. The projection’s radius is not the sphere’s true radius.

Source note: The 2024 and 2025 scans each yielded only two pages in transcription; their first pages were marked non-content, and the 2024 Q5 statement is incomplete. The PDFs above are the authority for any omitted questions or ambiguous drafting instructions. For Q7 in 2024, the 100 mm hemisphere on a 40 mm square prism appears unusual; confirm its intended orientation from the source before finalizing a drawing.