Engineering Drawing: Assignment, Practice and Previous ...
VIGNAN’S LARA INSTITUTE OF TECHNOLOGY AND SCIENCE(Affiliated to Jawaharlal Nehru Technological University, Kakinada)Department of Mechanical EngineeringI st Year (2016-2017) Sem: 1 Mid-I BranchesECE, CSE & ITUnit NoIAssignment No1TopicsPolygons, Ellipse and ScalesPolygons:Draw overlapping regular pentagon, hexagon and heptagon on a common edge of side 40m.Construct an octagon inscribed in a circle of 80mm diameter.Construct a regular pentagon of side 50mm by using general method.Draw a hexagon of side 40mm with a diagonal inclined at 45o to horizontal.Construct a regular polygon of any number of sides, given the length of its sides equal to 25mm.Draw an octagon given the length of side 25mm.Ellipses:An elliptical village pond having major and minor axis as 100mm and 80mm respectively. Construct the ellipse using arcs of circles method.The foci of an ellipse are 90mm part and the minor axis is 65mm long. Construct an ellipse using arcs of circles method. Draw a parallel ellipse 25mm outside of it.A plot of ground is in the shape of a rectangle 110m x 50m. Inscribe an elliptical lawn in it. Take a suitable scale.Draw an ellipse by oblong method if the major axis and minor axis are 160mm and 100mm respectively. Draw normal and tangent at any point on the ellipse at a distance.Construct an ellipse in a parallelogram of sides 120mm and 90 mm. Draw tangent and normal to it at a point 50mm from the centre of the figure.Two points A and B are 100mm apart. A point C is 75mm from A and 60mm frim B. Draw an ellipse passing through A, B and C.The distance between two fixed points is equal to 75mm. A point P moves such that sum of its distances from the two fixed points is always a constant and is equal to 90mm. Draw the locus of P and determine the minor axis.Diagonal Scales:Construct a diagonal scale of Representative Factor =1/32 showing yards, feet and inches and measure up to 4 yards.The distance between two towns is 200 km. In a map it is represented by 5cm long line. Find it’s R.F. Draw a diagonal scale and show (a) 269km (b) 572 km (c) 49 km and (d) 130km on it.A car is running at a speed of 50km/hour. Construct a diagonal scale to show 1km by 3cm and to measure up to 6km. Mark also on the scale the distance covered by the car in 5 minutes 28 seconds.On a map the distance between two points 14cm. The real distance between them is 20km. Draw a diagonal scale of this map to read kilometres and hectometres and to measure up to 25km. Show a distance of 17.6km on the scale.Vernier Scale:The actual length of 500m is represented by a line of 15cm on a drawing. Construct a Vernier scale to read up to 600m. Mark on the scale a length of 549m.Construct a Vernier scale of R.F = 2 to show cm, 1/10th of cm, 1/100th of cm to read up to 9cm. Mark on the scale the lengths 7.02cm.Draw a Vernier scale of R.F = 5 to read 1/5th cm and 1/25th cm and to measure up to 5cm. Mark on the scale distance of 2.12cm.Construct a vernier scale of R.F= 1/25 and long enough to measure up to 4 m. Show 3.14 m, 2.34 m and 0.28m lengths on the scale.BranchesECE, CSE & ITUnit NoIIAssignment No2TopicsProjection of points and linesProjection of PointsA point P is 15mm above the HP and 20mm in front of V.P. Another point Q is 25mm behind the VP and 40mm below the HP. Draw projections of P and Q keeping the distance between their projectors equal to 90mm. Draw straight lines joining.Draw the projections of the following points on the same ground line, keeping the projectors 25mm apart.A, in the HP and 20mm behind the VPB, 40mm above the HP and 25mm in front of the VPC, in the VP and 40mm above the HPA point 30mm above xy line is the top view of two points P and Q. The elevation of P is 45mm above the HP while that of the point Q is 35mm below the HP Draw the projections of the points and states their position with reference to the principle planes and the quadrant in which they lie.A point A is situated in the first quadrant. Its shortest distance from the intersection point of HP; VP and auxiliary plane is 60mm and it is equidistance from the principle planes. Draw the projections of the point and determine its distance from the principle planes.Draw the FV, TV on the following pointsPoint P lies in the HP and 20mm behind the VPPoint Q lies in the VP and 30mm below the HPPoint R lies 35mm below the HP and 25mm behind the VPTwo points M and N lie in the VP. The point M is above the HP and the point N is 40mm below the HP. The perpendicular distance between their projections is 60mm. The line joining M and N makes 60o with XY. Draw the projections of the points. Find the height of point M from the HP.A point P is 15mm above HP and 20mm in front of the VP. Another point Q is 25mm behind the VP and 40mm below the HP. Draw the projections of P and Q. Keeping the distance between their projection equal to 90mm. Draw straight lines joining (i) their top views and (ii) their front viewsProjections of linesDraw the projections of a line CD 50mm long, parallel to HP and inclined to VP. The end C is 10mm in front of VP and D is 30mm in front of VP. The line is 15mm above HP.A line CD is parallel to VP and inclined at 400 to HP. C is in HP and 25mm in front of VP. Top view is 50mm long. Find its true lengthA line EF 60mm long is in VP and inclined to HP. The top view measures 45mm. The end E is 15mm above HP. Draw the projections of the line. Find its inclination with HP.A line GH 45mm long is in HP and inclined to VP. The end G is 15mm in front of VP. Length of front view is 35mm. Draw the projections of the line. Determine its inclination with VP.Lines parallel to one plane and inclined to other planes The top view of 75mm long line measures 55mm. The line is in the VP, its one end being 25mm above the HP. Draw its projections.A 100mm long line is parallel to 40mm above the HP. Its two ends are 25mm and 50mm in front of the VP respectively. Draw the projections and find its inclination with VP.The length of the top view of a line parallel to the VP and inclined at 60o to the HP is 40mm. One end of the line is 12mm above the HP and 25mm in front of the VP. Draw the projections of the line and determine its True length.Draw the projections of 90mm long straight line, in the following points. (i) parallel to both HP and VP and 20mm in front of the VP and 30mm above the HP. (ii) inclined at 45o to the HP and its one end 15mm above it parallel to and 50mm in front of the VPDraw the projections of a 75mm long line AB, when it is parallel to both HP and VP and 20mm below the HP and 40mm in front of VP.BranchesECE, CSE & ITUnit NoIIIAssignment No3TopicsProjection of inclined lines to both planes and tracesProjection of inclined lines to both planesA line CD measuring 80mm is inclined at an angle of 30o to HP and 45o to VP. The point C is 20mm above HP and 30mm in front of VP. Draw the projections of the straight lines. The top view of a 75mm long line AB measures 65mm while the length of its front view is 50mm. Its one end A is in the HP and 12mm in front of the VP. Draw the projections of AB and determine its inclinations with the HP and the VP.A line PQ 100mm long is inclined at 300 to the HP and at 450 to the VP. Its midpoint is in the VP and 20mm above the HP. Draw its projections, if its end P is in the third quadrant Q in the first quadrant.A line AB, 65mm long, has its end A 20mm above the HP and 25mm in front of the VP The end B is 40mm above the HP and 65mm in front of the VP. Draw the projections of AB and show its inclinations with the HP and the VP.A line AB, 90mm long, is inclined at 450 to the HP and its top view makes an angle of 600 with the VP. The end A is in the HP and 12mm in front of the VP. Draw its front view and find its true inclination with the VP.A line AB, 90mm long is inclined at 45o to the HP and its top view makes an angle of 60o with the VP. The end A is in the HP and 12mm in front of the VP. Draw its front view and find its true inclination with VP.The top view of a line is 65mm long and is inclined at 30o to the reference line. One end is 20mm above HP and 10mm in front of VP. The other end is 60mm above HP and is in front of VP. Draw the projections and find the true length of the line and its true inclinations to HP and VP.VIGNAN’S LARA INSTITUTE OF TECHNOLOGY AND SCIENCE(Affiliated to Jawaharlal Nehru Technological University, Kakinada)Department of Mechanical EngineeringI st Year (2016-2017) Sem: 1 Mid-II BranchesECE, CSE & ITUnit NoIVAssignment No4TopicsProjection of PlanesA hexagonal lamina of 25mm side has a central hole of 30mm diameter. Draw the front and top views when the surface of the lamina is inclined at 450 to H.P. a side of lamina is inclined at 350 to V.P. A 600set-square of 125mm longest side is so kept that the longest side is in the H.P. making an angle of 300 with the V.P. and the set square itself inclined at 450 to the H.P. Draw the projections of the Set Square.Draw the projections of the circle of 50mm diameter resting in the H.P. on a point A on its circumference, its plane inclined at 450to H.P. The top view of the diameter AB making 300angle with the V.P.The diameter AB making 300 angle with the V.P.Draw the projections of a pentagonal sheet of 26mm side, having its surface inclined at 30O to VP. It’s one end side is parallel to V.P and inclined at 45o to HP.A hexagonal lamina of 20mm side rests on one of its corners on HP. The diagonal passing through this corner is inclined at 450 to HP. The lamina is then rotated through 900 such that the top view of this diagonal is perpendicular to VP and the surface is still inclined at 450 to HP. Draw the projections of the lamina.A semi-circular lamina of 64mm diameter has its straight edge in VP and inclined at an angle of 450 to HP. The surface of the lamina makes an angle of 300 with VP. Draw the projections.BranchesECE, CSE & ITUnit NoVAssignment No5TopicsProjection of SolidsDraw the projections of a pentagonal prism of base side 30mm and axis 60mm long rests on H.P. on one of the base corners with the base edges containing it being equally inclined to H.P. the axis inclined at 450 to H.P and parallel to V.P.A hexagonal pyramid side of base 25mm axis 50mm long lies with one of its triangular faces on the H.P. and its axis is parallel to the V.P. Draw its projections.Draw the projections of a pentagonal prism of base 25mm side and axis 50mm long resting on one of its rectangular faces on H.P. with the axis inclined at 450 to V.P. Draw the projections of a cylinder 75 mm diameter and 100mm long. Lying on the ground with its axis inclined at 30o to the V.P and parallel to the ground.Draw the projections of a pentagonal prism, base 25mm side and axis 50mm long, resting on one of its rectangular faces on the ground, with the axis inclined at 450 to the VP.A hexagonal pyramid having base 25mm side and axis 50mm long has an edge of its base on ground. Its axis is inclined at 30o to the ground and parallel to the VP. Draw its projections.Draw the projections of a cone, base 75mm diameter and axis 100mm long, lying on the ground on one of its generators with the axis parallel to the VP.BranchesECE, CSE & ITUnit NoVIAssignment No6TopicsConversion of Orthotropic to Isotropic ModelsDraw the isometric view of the following (Previous paper models)BranchesECE, CSE & ITUnit NoVIAssignment No7TopicsConversion of Isotropic to Orthotropic ModelsDraw the Orthotropic views (Front view, Top view and Side views) of the following (Previous paper models) ................
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