GE6152 Engineering Graphics Question Bank : valliammai.co.in
Name of the College : Valliammai Engineering College
Subject : Engineering Graphics
Website : valliammai.co.in
Document Type : Question Bank
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Valliammai Engineering Graphics Question Paper
QUESTION BANK
Unit – I
(PLANE CURVES & FREEHAND SKETCHING)
a) ELLIPSE, PARABOLA & HYPERBOLA
1. Draw the locus of a point P moving so that the ratio of its distance from a fixed point F to its distance from a fixed straight line DD’ is ¾ . Also draw tangent and normal to the curve from any point on it.
Related : Valliammai Engineering College CE6303 Mechanics of Fluids Question Bank : www.pdfquestion.in/419.html
2. Construct an ellipse given the distance of the focus from the directrix as 60 mm and eccentricity as 2/3. Also draw tangent and normal to the curve at a point on it 20 mm above the major axis.
3. Construct a parabola given the distance of the focus from the directrix as 50 mm. Also draw tangent and normal to the curve from any point on it.
4. Draw the locus of a point P moving so that the ratio of its distance from a fixed point F to its distance from a fixed straight line DD’ is 1. Also draw tangent and normal to the curve from any point on it.
5. Draw a hyperbola when the distance between the focus and directrix is 40 mm and the eccentricity is 4/3. Draw a tangent and normal at any point on the hyperbola.
b) CYCLOIDS & INVOLUTES
6. Draw the involute of a square of side 30 mm. Also draw tangent and normal to the curve from any point on it.
7. A coir is unwound from a drum of 30mm diameter. Draw the locus of the free end of the coir for unwinding through an angle of 360°. Draw also a tangent and normal at any point on the curve.
8. A circle of 50 mm diameter rolls along a straight line without slipping. Draw the curve traced by a point P on the circumference for one complete revolution. Draw a tangent and normal on it 40 mm from the base line.
9. Draw an epicycloids generated by a rolling circle of diameter 40 mm and the diameter of the directing circle is 140 mm. Also draw tangent and normal to the curve from any point on it.
10. Draw a hypocycloid generated by a rolling circle of diameter 50 mm and the diameter of the directing circle is 240 mm. Also draw tangent and normal to the curve from any point on it.
c) FREEHAND SKETCHING (ORTHOGRAPHIC PROJECTIONS FROM PICTORIAL VIEWS)
11. Draw the Orthographic views (Front, Top & Side views) of the given objects shown below.
Unit – II
(PROJECTION OF POINTS, LINES & PLANE SURFACES)
a) POINTS
1. Mark the projections of the following points on a common reference line: P, 35 mm behind the VP and 20 mm below the HP. Q, 40 mm in front of VP and 30 mm above the HP. R, 50 mm behind the VP and 15 mm above the HP. S, 40 mm below the HP and in the VP.
2. A point C is on HP and 15 mm behind VP. Another point D is also on HP and 40 mm in front of VP. The distance between their projectors is 45 mm. Join their front views and determine inclination of this line with XY line.
3. A point P is on HP and 20 mm in front of VP. Another point Q is also on HP and behind VP. The distance between their end projectors is 60 mm. Draw its projections if the line joining P & Q makes an angle of 60º with the reference line. Also find the positions of point P and Q.
b) LINES
4. A line PQ, 50 mm long is perpendicular to HP and 15 mm in front of VP. The end P nearer to HP 20 mm above it. Draw the projections of the line.
5. A line PQ, 60 mm long has one end P, 20 mm above the HP and 35 mm in front of VP. The line is parallel to HP. The front view has a length of 50 mm. Find its true inclinations with VP.
6. A line NS, 80 mm long has its end N,10 mm above the HP and 15 mm in front of VP. The other end S is 65 mm above the HP and 50 mm in front of VP. Draw the projections of the line and find its true Inclination with HP and VP.
7. The end P of a line PQ is 30 mm above HP and 35 mm in front of VP. The line is inclined at 35° to HP. Its top view is 70 mm long inclined at 40° to XY. Draw the projections of straight line. Find the true length and inclination of the line with VP.
8. A line MN has its end M, 15 mm in front of VP and 20 mm above the HP. The other end N is 55 mm in front of VP. The front view has a length of 80 mm. The distance between end projectors is 65 mm. Draw the projections of line. Find its true length and true inclinations
9. The mid point of a line AB, 80 mm long, is 30 mm above HP and 45 mm in front of VP. The line is inclined at 30º to HP and 50º to VP. Draw the projections.
10. A straight line ST has its end S, 10 mm in front of VP and nearer to it. The mid point ‘m’ of the line is 50 mm in front of VP and 40 mm above HP. The front and top views measure 90 mm and 120 mm respectively. Draw the projections of the line. Also, find the true inclinations with VP and the HP.
11. A line MN has its end M, 10 mm in front of VP and 15 mm above HP. The other end N is 50 mm in front of VP. The front view has a length of 70 mm. The distance between the end projectors is 60 mm. Draw the projections of the line. Find its true length, true inclinations and mark the traces.
Unit – III
c) PLANE SURFACES
12. A regular hexagonal lamina of side 30 mm rests on one of its edges on HP. The lamina makes 60°with HP and the edge on which it is resting makes an angle of 60° with VP. Draw its projections.
13. A pentagon of side 30mm rests on HP on one of its corners with the sides containing that corner being equally inclined to HP. The side opposite to the corner on which it rests is inclined at 30° to VP and the surface makes 45° with ground. Draw the projections of the lamina.
14. Draw the projections of a square plane of side 35mm rests on the ground on one of its corners with a diagonal containing that corner is inclined 40° to HP and 50° to VP.
15. A regular pentagonal lamina of side 30mm has one edge in HP and inclined at an angle of 30° to VP. Draw its projections when its surface is inclined at 45° to HP.
16. A rectangular plane of size 40mm x 20mm has its shorter edge on HP and inclined at an angle of 40° to VP. Draw the projections when the top view is a perfect square of size 20mm.
17. A regular hexagon of side 40mm is resting on one of its corners on HP and the surface inclined 45º to HP. Draw the projections when the diagonal through the corner resting on HP makes an angle of 60ºwith VP.
18. A hexagonal lamina of side 30mm is resting on one of its sides on VP and inclined at 40° to HP. Its surface is inclined at 35° to VP. Draw the projections of the lamina.
19. A circular plate of diameter 70 mm has the end P of the diameter PQ in the HP and the plate is inclined at 40° to HP. Draw its projections when the diameter PQ appears to be inclined at 45° to VP in the top view.
20. A hexagonal plate of side 20 mm rests on the HP on one of its sides inclined at 45° to VP. The surface of the plate makes an angle of 30° with the HP. Draw the front view and top view of the plate.