E.g Q.b. Solutions -part B

E.G. Question Bank Solutions- UNIT-1 1. A fixed point is 75 mm from fixed straight line. Draw the locus of a point P moving such a way that its distance from the fixed straight line is (a) twice its distance from the fixed point (b) equal to its distance from the fixed point. Name the curves. Ans: (a)

(b)

2. A fixed point is 60 mm from a fixed straight line. Draw the locus of a point moving in such a way that its distance from the fixed point is twice its distance from the fixed straight line. Name the curve. Ans:

3. A circle of 50 mm diameter rolls along a straight line without slipping. Draw the curve traced out by a point P on the circumference, for one complete revolution of the circle. Name the curve. Draw a tangent to the curve at a distance of 40 mm from the line.

Ans:

4. Draw an epicycloid when the diameters of the rolling and the directing circles are 50 mm. Suggest an alternative name for this curve. Ans:

5. A circus man rides on a motor cycle inside a globe of diameter 3.5 m. The motor cycle wheel is 1 m in diameter. Draw the locus of a point lying on the circumference of the wheel of motor cycle for one turn. Take a scale of 1:20. Ans:

6. The distance between two points on a map is 15 cm. The real distance between them is 20 km. Draw a diagonal scale to measure up to 25 km and show a distance of 18.6 km on it. Ans:

E.G. Question Bank Solutions- UNIT-2 1a. Two points A and B are in the H.P. the point A is 30 mm in front of the V.P. While B is behind the V.P. The distance between their projections is 75 mm and line joining their top views makes an angle of 45 0 with XY. Find the distance of the point B from the V.P.

1b. A point C is 40mm below H.P and 20mm behind V.P, another points D and E are 60mm above H.P and in front of V.P, 90 mm below H.P and 45mm in front of V.P respectively draw the projections of all points on same reference line.

2. A line AB, 75mm long is in second quadrant with the end, A in the HP and the end, B in the V.P. The line is inclined at 300 to HP and at 450 to V.P. Draw the projections of AB and determine its traces.

3. The projections of the ends of a line AB are on the same projector. The end A is 30 mm below H.P and 15 mm behind V.P. The end B is 35 mm above H.P and 40 mm in front of V.P. Determine its true length, traces and the inclinations with the reference planes.

4. An isosceles triangular plane ABC with a 70 mm base and altitude 80 mm has its base in the H.P. and inclined at 450 to the V.P. The corners A and C are in the V.P. Draw its projections and determine the inclination of the plane with H.P.

5. A pentagonal plane with a 35 mm side is resting on one of its edges in the H.P. with its surface perpendicular to the V.P. The corner opposite to the edge on which it is resting is 40 mm above the H.P. draw its projections. Also, project another front view on an A.V.P. which is inclined at 450 with the V.P.

6. A regular pentagon lamina of 30 mm side surface is inclined at 300 to V.P and side on which it rests of VP makes at angle of 450 to HP. Draw its projection by auxiliary plane method.

E.G. Question Bank Solutions- UNIT-3 1. A Cylinder, diameter of base 40 mm and height 60 mm, is having a point of its base in VP with axis of cylinder inclined to VP by 300 and parallel to HP. Draw the projections of the cylinder.

2. Draw the projections of a right circular cone of base 40 mm diameter and height 60 mm when resting with its base on HP.

3. A Hexagonal prism, having a base with a 30 mm edge and 65 mm long axis, has an edge of its base in the VP. such that the axis is inclined at 300 to the VP. And parallel to the HP. Draw its projections.

4. A Pentagonal prism having a base with a 30 mm side and a 60 mm long axis is resting on a face on the HP. and axis making 30 to VP. It is cut by a section plane passing through a point 10 mm below the top longer edge. Draw its sectional top view.

5. A cone of base diameter 50 mm and axis 60 mm lies on one of its generators on the H.P such that its axis is parallel to the V.P. The cone is cut by a horizontal section plane whose V.T. trisects the axis from the base. Draw its sectional views.

6. An equilateral triangular pyramid of base 40 mm and axis height 65 mm rests in H.P on one of its base sides .draw the projections of the axis makes an angle of 250 to H.P?

E.G. Question Bank Solutions- UNIT-4 1. A cone of base diameter 40mm and slant height 60mm is kept on the ground on its base. An AIP inclined at 450 to the HP cuts the cone through the midpoint of the axis. Draw the development.

2. A square prism of base side 30mm and axis length 60mm is resting on HP on one of its faces with a base side inclined at 30 to VP. It is cut by plane inclined at 400 to HP and perpendicular to VP and is bisecting the axis of the prism. Draw its development.

3. A cylinder of base diameter 45mm and height 65mm lies on its base on HP. It is cut by a plane perpendicular to VP and inclined at 300 to HP and meeting the axis at a distance of 30mm from the base. Draw the development of the lower portion of the solid.

4. A vertical square prism, base 50mm side is completely penetrated by a horizontal square prism, base 35mm side, so that their axes intersect. The axis of the horizontal prism is parallel to the VP, while the faces of the two prisms are equally inclined to the VP. Draw the projection of the of the solids, showing lines of intersection.(Assume suitable lengths for the prisms)

5. A cylinder of base diameter 70mm is resting on its base on the H.P. It is penetrated by another cylinder of base diameter 60mm, such that their axes intersect each other at right angles. Draw the projections of the combination and so curves of intersection.

6. A square pyramid of base side 25 mm and altitude 65 mm rests on the hp on its base with the base edges equally inclined to vp. It is cut by a plane perpendicular to vp and inclined at 300 to hp meeting the axis at 25 mm above hp. Draw the development of the lateral surface of the square pyramid.

E.G. Question Bank Solutions- UNIT-5 1. A square pyramid of base 25mm and axis 40mm rests centrally over a cylindrical block base diameter 50mm and thickness 20mm. Draw isometric projections of the arrangement.

2. A sphere of diameter 50mm is surmounted centrally on the top of a square block of side 60mm and thickness 20mm. draw isometric view of arrangement.

3. A hexagonal prism of base side25mm and axis 70mm is placed centrally on its rectangular face over a cylindrical block of base diameter 80mm and thickness 30mm. Draw isometric projections of the arrangement.

4. Draw three principal views for following isometric view.

5. Draw three principal views for following isometric view.

6. Draw three principal views for following isometric view.