GE211 – ENGINEERING GRAPHICS

B.E./B.TECH.DEGREE MODEL EXAMINATIONS, OCT/NOV – 2011

REGULATIONS 2008

FIRST SEMESTER

GE211 – ENGINEERING GRAPHICS

COMMON TO CIVIL, AERO, CSE, EEE, IT & EIE

Time: Three Hours                               Date:   10.11.2011                              Maximum: 100 marks

ANSWER ALL QUESTIONS (5x20=100)

1. Construct one convolution of an involute of a circle of diameter 25mm. Draw tangent and normal at a point on the involute 45mm distant from the centre of the circle.

2. A fixed point is at 60mm from a fixed straight line. Draw the curve when eccentricity is 2/3. Name the curve. Draw tangent and normal to the curve through a point P, which is at 65mm from the straight line.

3. The end P of a line PQ, 70mm long is 15mm above HP and 20mm infront of the VP. Q is 40mm above the HP. Its plan is inclined at 45^o to the VP. Draw the projections of the line and find its true inclinations with the VP and HP.

4. The midpoint of a line PQ 70mm long, is 25mm above HP and 40mm infront of VP. It is inclined at 35^o to HP and 45^o to VP. Draw its projections.

5. A regular pentagonal lamina of 30mm sides has one edge in HP and inclined at an angle of 30^o to VP. Draw its projections when its surface is inclined at 45^o to HP.