**Marks: 80**

**[Time : 4 hours]**

**Section A and B**

**INSTRUCTIONS TO CANDIDATES
**(1) All questions carry marks as indicated.

(2)Due credit will be given to neatness and adequate dimensions.

(3) Assume suitable data wherever necessary.

(4) Diagrams and Chemical equations should be given wherever necessary.

(5) Retain the construction lines.

(6)Illustrate your answers wherever necessary with the help of neat sketches.

(7) Use of Drawing instruments is permitted.

____________________________________________________________________________________________________________________________

**SECTION-A**

**1.**(a) The major axis of an ellipse is 100 mm long and the foci are at a distance of 15 mm from its ends. Find the minor axis. Draw the ellipse by concentric circle method. **[06M]**

(b) Two cranks AB and CD are connected by a link BD. AB rotates about A, while CD oscillates about C. Trace the locus of the mid-point of the link BD during one complete revolution of the crank AB. AB = 450 mm, CD = 750 mm, BD =1050 mm. Distance between A and C is equal to 900 mm.** [07M]**

**OR**

**2**. (a) A coin of 35 mm diameter rolls over dining table without slipping. A point on the circumference of the coin is in contact with the table surface in the beginning and after one complete revolution. Draw the curve traced by the point. Draw a tangent and normal at any point on the curve. **[07M]**

(b) A thin rod AB. 100 mm long revolves uniformly about its centre ‘0’. During its one revolution a point ’13 ‘ moves along AB at uniform speed from A to B. Draw the locus of ’13’. **[06M]**

**3.** Draw the projections of a regular hexagon of 25 mm side, having one of its sides in the H.P. and inclined at 60° to the V.P. and its surface making an angle of 45° with the the H.P. **[07M] **

b) The length of the top view of the line parallel to the V.P. and inclined at 45° to the H.P. is 50 mm. One end of the line is 12 mm above the H.P. and 25 mm in front of V.P. Draw the projections of the line and determine its true length. **[06M]**

**OR**

**4** a. Draw the projections of a 75 mm long line inclined at 60° to the V.P. and its one end 15 mm in front of V.P. parallel to and 25 mm above the H.P. **[06M]**

(b) A square ABCD of 50 mm side has its corner A in the H.P., its diagonal AC inclined at 30° to the H.P. and the diagonal BD inclined at 45° to the V.P. and parallel to the H.P. Draw its projections.** [07M]**

**5.** Draw by first angle projection method the following views : **[14M]**

(i) Front view in the direction of ‘X’

(ii) Top view and

(iii) Right hand side view.

**OR**

**6.** Draw by third angle projection method the following views : ** [14M]**

(i) Front view in the direction of ‘X’

(ii) Top view and

(iii) Left hand side view.

**SECTION—B**

**7.** (a) A hexagonal prism base 30 mm side and axis 65 mm long, has an edge of the base parallel to the H.P. and inclined at 45° to the V.P. Its axis makes an angle of 60° with the H.P. Draw its projections. **[06M]**

(b) Draw the projections of a cone, base 45 mm diameter and axis 50 mm long, when it is resting on the H.P. on a point on its base circle with the axis making an angle of 30° with the H.P. and 45° with the V.P. **[07M]**

**OR**

**8.** a. Draw projections of a cylinder 50 mm diameter and 65 mm long, lying on the H.P. with its axis inclined at 30° to the V.P. and parallel to the H.P. **[06M]**

(b) A pentagonal pyramid edge of base 30 mm and length of axis 70 mm has a slant edge on the H.P. making an angle of 45° with the V.P. Draw the projections of the solid.

**[07M]**

**9. **(a) A cone, base 60 mm diameter and axis 60 mm long is lying on the H.P. on one of its generators with the axis parallel to the V.P. A vertical section plane parallel to the generator which is tangent to the ellipse (for the base) in the top view, cuts the cone bisecting the axis and removing the portion containing the apex. Draw the sectional

front view and true shape of the section. **[07M]**

(b) A cube of 35 mm long edges is resting on the H.P. on one of its faces with a vertical face inclined at 30° to the V.P. It is cut by a section plane perpendicular to the V.P. inclined at 45° to the H.P. and passing through the top end of the axis. Draw its front view, sectional top view and true shape of section. **[07M]**

**OR**

**10.** (a) A hexagonal pyramid, 30 mm side and axis 65 mm long is resting on its base on the H.P. with two edges parallel to the V.P. It is cut by a section plane perpendicular to the V.P. inclined at 45° to the H.P. and intersecting the axis at a point 25 mm above the base. Draw the front view, sectional top view and true shape of the section. **[07M]**

**(b) **A cylinder of 50 mm diameter of base and mm length of axis has one of its base on the H.P. It is cut by an A.I.P. in such a way that the true shape of the section is an ellipse of largest possible major axis. Draw sectional top view, true shape of section and find the inclination of the section plane with the H.P. **[07M]**

**11.** Figure shows two views of an object. Draw isometric views. **[13M]**

**OR**

**12**. Figure shows two views of an object. Draw isometric projection.** [13M]**

_________________________________________________________________________________________________________________________

Login

Accessing this course requires a login. Please enter your credentials below!