Impact of Information Technology on Common Life

Anna University
B.E./B.Tech. DEGREE EXAMINATIONS, JANUARY 2010
Regulations 2008
First Semester
Common to all branches
GE2111 ENGINEERING GRAPHICS
Time: Three Hours
Maximum: 100 Marks
Answer ALL Questions
(5 x 20 = 100 Marks)
1. (a) The focus of a conic is 50 mm from the directrix. Draw the locus of a point ‘P’ moving in such a way that its distance from the directrix is equal to its distance from t he focus. Name the curve. Draw a tangent to the curve at a point 60 mm from the directrix. (20)
OR
1. (b) Make free hand sketches of t he front, top an d right side views of the object shown below : (20)

2. (a) The projections of a line measures 80 mm i n the top view and 70 mm in the front view. The mid point of the line is 45 mm in frontof VP an d 35 mm above HP. One end is 10 mm in front of VP andnearer to it. The other end is nearer to HP. Draw the projections ofthe line. Find the true length and true inclinations. (20)
OR
2. (b) Draw the projections of a circle of 70 mm diameter resting on the H.P. on a point A of the circumference. The plane is inclined to the H.P. such that the top view of it is a n ellipse of minor axis 40 mm. The top view of the diameter, through the point A is making an angleof 45◦ with the V.P. Determine the inclination of the plane with the H.P. (20)
3. (a) An equilateral triangular prism 20 mm side of base and 50 mm long rests with one of its shorter edges on HP such that t he rectangular face containing th e edge on which the prism rests isinclined at 30◦ to H.P. The shorter edge resting on HP is perpendicular to VP. (20)
OR
3. (b) Draw t he projections of a hexagonal pyramid with side of thebase 30 mm and axis 70 mm long, when it is resting with one of thebase sides on HP such that the triangular face containing that side isperpendicular to HP and axis is parallel to VP. (20)
4. (a) A vertical cylinder 40 mm diameter is