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[EURME 106]

B.Tech. DEGREE EXAMINATION

I SEMESTER

GEOMETRICAL DRAWING

(Effective from the admitted batch 200910)(Common for BT, ME,Civil & MMM branches)

Time: 3 Hours Max.Marks: 60

-----------------------------------------------------------------------------------Instructions: Each Unit carries 12 marks.

Answer all units choosing one question from each unit.

All parts of the unit must be answered in one place only.

Figures in the right hand margin indicate marks allotted.

-----------------------------------------------------------------------------------UNIT-I

1. a) A point P is 40 mm above the H.P. and 25 mm behind the V.P.

Draw the following projections. 6

i) Projection of P

ii) Treating the V.P. as a mirror, draw the projections of the

image of P(Q). State the quadrant in which Q is situated.

iii) Now treating the H.P. on a mirror, draw the projections ofthe image of P (R). State the quadrant in which R is located.

b) A line PQ is 100 mm long. The end P is 20 mm above HP

and 30 mm in front of V.P. the end Q is 20 mm above H.P

and 30 mm behind V.P. Draw the projections of line PQ and

find its inclination with H.P and V.P. 6

OR

2. Two oranges on a tree are respectively 1.8 m and 3 m above theground, and 1.2 m and 2.1 m from a 0.3 m thick wall, but on the

opposite sides of it. The distance between the oranges, measured

along the ground and parallel to the wall is 2.7 m. The wall is

inclined at 500 to the vertical plane. Draw the projection of the

oranges to a suitable scale and find the real distance between the

oranges. 12

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UNIT-II

3. A circle of 50 mm diameter appears as an ellipse in the front view,

having its major axis 50 mm long and minor axis 30 mm long.

Draw the top view when the major axis is inclined at 300 to H.P. 12

OR

4. A thin regular pentagonal plate of 60 mm long edges has one of its

edges in the H.P. and perpendicular to V.P., while its farthest

corner is 60 mm above the H.P. Draw the projections of the plate.

Project another front view on an A.V.P. making an angle of 450

with the V.P. 12

UNIT-III

5. Draw the projections of a cone, base 45 mm diameter and axis

60 mm long, when it is resting on the ground on a point on itsbase circle with the axis making an angle of 450 with the H.P.

and 450 with the V.P. 12OR

6. A square pyramid of 50 mm side of base and 60 mm length of axis

is resting on one of its triangular faces on the H.P. having a slant

edge containing that face parallel to the V.P. Draw the projections

of the pyramid. 12

UNIT-IV

7. A cone, base 75 mm diameter and axis 80 mm long is resting on

its base on the H.P. It is cut by a section plane perpendicular to

the V.P. inclined at 450

to the H.P. and cutting the axis at a point

35 mm from the apex. Draw its front view, sectional top view and

true shape of the section. 12OR

8. A pipe 40 mm diameter and 120 mm long (along the axis) iswelded to the vertical side of a tank. Show the development of

the pipe, if it makes an angle of 600 with the side to which it is

welded, the other end of the pipe making an angle of 300 with its

own axis. Neglect thickness of the pipe. 12

UNIT-V

9. The base diameter of a frustum of the cone is 60 mm and top face

diameter is 30 mm. The length of the axis is 40 mm. Draw the

isometric view of the cone when the axis is perpendicular to H.P. 12

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OR

10. A sphere of radius 30 mm is resting centrally on the top of a

cube. The side of the cube is 40 mm. The cube has one of its

faces on H.P and two faces parallel to the V.P. Draw the

isometric projection of cube and sphere. 12

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