Tuesday, January 25, 2011

Engineering Graphics first sem question paper-2


1. (a) Construct a hyperbola when the distance between the focus and the directrix is 40 mm and the
eccentric is 4/3. Draw a tangent and normal at any point on the hyperbola.

Or
(b) A coir is unwound from a drum of 30 mm diameter. Draw the locus of the free end of the coir for
unwinding through an angle of 360. Draw also a normal and tangent at any point on the curve.

2. (a) The end ‘P’ of a line PQ, 70 mm lo9ng is 15 mm above the HP and 20 mm in front of the VP. Q is
40 mm above the HP. Its plan is inclined at 450 to the VP. Draw the projections of the line and find
its true inclinations with the VP and the HP.

Or

(b) A square ABCD of 50 mm side has its corner A on the ground, its diagonal AC inclined at 450
To the VP and parallel to the HP. Draw its projections.

3. (a) A pentagonal prism of base side 30 mm and axis length 60 mm rests on the HP on one of the base
corners with the base edges containing it being equally inclined to HP. The axis is inclined at 450. to
the HP and parallel to the VP. Draw the projections of the prism by change of position method.

Or

(b) A pentagonal pyramid, side of base 30 mm and axis 60 mm long rests with its base on HP and an
edge of its base is parallel to V.P. A section plane perpendicular to VP and inclined at 450 to HP.
Passes through the axis at a point 35 mm above the base. Draw the sectional top view.

4 (a) A cone of base 50 mm diameter and height 65 mm rests with its base on H.P. A section plane
perpendicular to V.P. and inclined at 300. to H.P. bisects the axis of the cone. Draw the development
of the lateral surface of the truncated cone.

(b) A circular hole of diameter 30 mm is drilled through a vertical cylinder of diameter 50 mm and height
65 mm. the axis of the hole is perpendicular to the V.P. and meets the axis of the cylinder at right angles at a height of 30 mm above the base. Draw the development of the lateral surface of the cylinder.

5 (a) A cylinder 50 mm diameter and 60 mm height stands on H.P. a section plane perpendicular to V.P.,
inclined at 550 to H.P. cuts the cylinder and passes through a point on the axis at a height of 45 mm

First sem Engineering Graphics question Paper


1. (A) A circle of 50 mm diameter rolls on a horizontal line for of a revolution clockwise.
Draw the path traced by a point P on the circumeference of the circle. Also draw a tangent and normal at any point on the curve.

2(a) A straight line ST has its end S,10 mm infront of the VP and nearer to it. The mid point m of the line is 50 mm infront of the VP and 40 mm above HP. The front and top view measure on mm and 120 mm respectively.
Draw the projections of the line. Also find its true length and true inclinations with the HP and the VP.

OR
(b) A regular pentagon of 30 mm side, is resting on one of its edges on HP which is inclined at 45o to VP. 
Its surface is inclined at 30 o to HP. Draw its projections.

3. (a) Draw the projections of a cylinder of diameter 40 mm and axis 70 mm long when it rests on the VP on one of its base points.
The axis of the cylinder is parallel to HP and inclined at 30 o to VP.

OR
(b) A hexagonal pyramid of base side 30 mm and axis length 60mm is reting on VP on one of its base edges with the face containing the 
resting edge perependicular to both HP and VP. Draw its projections.



4. (a) A cone of base diameter 60 mm and axis 70 mm is resting on HP on its base. It is cut by a plane perpendicular to VP and parallel
to a contour generator and is 10 mm away from it. Draw the front view, sectional top view and the true shape of the section

OR
(b) A cone of base diameter 60 mm and axis 70 mm is resting on HP on its base. It is cut by a plane perpendicular to VP and parallel 
to a contour generator and is 10 mm away from it. Draw the front view, sectional top view and the true shape of the section


5.(a) An object consists of a hemispherical vessel of 80 mm diameter which is placed centrally over a cylinder of 50 mm diameter and height of 60 mm. The cylinder in turn is placed centrally over a square prism of 60mm base side and 20 mm height. Draw the isometric projection of the object. 

OR
(b) Draw the perspective view of a square prism of edge of base 40 mm and length 60 mm lying on a rectangular face on the ground, with a corner on PP and the bases equally inclined to PP. The station point is 60 mm in front of PP and 80 mm above GL and lies in a central plane,
which is passing through the centre of the prism.