B.Tech I Semester (R20) Regular Examinations

Course Title: Engineering Graphics

(Common to all branches)

Time: 3 hours

Max. Marks: 70

Note: Answer all five questions. All questions carry equal marks.

1. a) A point P is 30mm above HP and 40mm in front of VP. Another point Q is 40mm below HP and 30mm behind VP. Draw projections of points P and Q keeping the distance between their projectors is 70mm. Also state in which quadrant the points lie.

   OR

   b) A line AB is having its end A, 20mm above HP and 30mm in front of VP. The other end B is 50mm above HP and 40mm behind VP. The distance between the end projectors is 80mm. Draw the projections of the line and determine the true length, inclination with HP and VP.

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2. a) A regular hexagon of 40mm side has a corner on the HP. Its surface is inclined at 45° to the HP and the diagonal through the corner which is on the HP makes an angle of 30° with the VP. Draw its projections.

   OR

   b) A square pyramid, base 40mm side and axis 60mm long, has its base on the H.P. and all the edges of the base are equally inclined to the V.P. It is cut by a section plane, perpendicular to the V.P., inclined at 45° to the H.P. and bisecting the axis. Draw its sectional top view, front view and true shape of the section.

3. A cone of base diameter 50mm and axis 70mm long is resting on its base on H.P. It is cut by a section plane perpendicular to the V.P., inclined at 45° to the H.P. and passing through a point on the axis 20mm from the apex. Draw the development of the lateral surface of the remaining portion of the cone.

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   OR

   A pentagonal prism of base side 30 mm and height 60 mm is resting vertically on its base on the HP such that one of its rectangular faces is parallel to the VP. It is cut by a plane inclined at 45° to the HP and perpendicular to the VP and passing through the axis at a height of 35 mm from the base. Draw the development of the remaining portion of the prism.

4. Draw the isometric view of a square prism, with side of base 50mm and height 75mm resting on its base on the H.P. with a rectangular face parallel to the V.P. A central vertical hole of 25mm diameter is drilled through the prism.

   OR

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   Draw the isometric view of a frustum of a cone, base diameter 60mm, top diameter 30mm and height 50mm.

5. Draw the front view, top view and side view from the left for the following figure.

   (Note: Replace "image.png" with the actual path to the image if available)

   OR

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   Draw the front view, top view and side view from the right for the following figure.

   (Note: Replace "image2.png" with the actual path to the image if available)

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