ME3I

Programme: Diploma in Mechanical Engineering (ME)

Course: Mechanical Working Drawing (22341)

Note:

1. Use First Angle Method Only.

2. Draw All the Symbols and tables given below.

3. Use A2 Size Sheet only.

4. Use A3 Size Sketch book only.

5. Use H or 2H pencil only.

6. All the letters should be in Uppercase (CAPITAL)

7. Draw the Nameplate in lower Right Corner of First

Sheet

Sketchbook 01: Development of Lateral Surface.

1. A square prism side 40 mm, axis 80 mm kept on the H.P with side of base equally inclined with V.P. A circular

hole of diameter 40 mm is drilled through the prism such that axis of hole perpendicular to V.P. and parallel

to H.P. and bisects the axis of square prism. Draw development of lateral surface of prism.

2. Figure shows front view of truncated circular cylinder. Show development of its lateral surface marked as ‘P’

3. Draw the development of the part ‘P’ of the pentagonal pyramid shown in figure.

4. Draw the development of the lateral surface of part ‘P’ of the cone shown in figure.

5. A pentagonal pyramid resting on its base on H.P. with side of the base 40 mm and height 75 mm having one

of the sides of the base parallel to V.P. and away from the V.P. A square hole of side 24 mm is drilled through

it such that its axis is parallel to H.P and perpendicular to V.P. and intersects the axis of pyramid 30 mm from

the base, the faces of the hole are equally inclined to H.P. Draw development of lateral surface of pyramid

with hole.

Sheet 01: Development of Lateral Surface.

1. An equilateral Triangular prism is resting in H.P. with one of its rectangular faces parallel to V.P. It is cut by two

different planes and also has circular hole as shown in figure. Develop the lateral surface of this cut prism

2. A cylinder of 60 mm base diameter and axis length 80 mm is resting on its base with axis perpendicular to H.P. A

square hole of 30 mm side is cut throughthe cylinder. The axis of the hole is perpendicular to the V.P and 8 mm to

the right of the axis of the cylinder and 40 mm above the base of the cylinder.If two side faces of the hole are

inclined at 60 ͦ to H.P. Draw the development of the lateral surface of the cylinder showing effect of hole.

3. Figure shows F.V of a square pyramid. Draw its development of lateral surface.

4. Figure shows 3 pieces cylindrical elbow pipe of 90 ͦ bend. Determine the shape of plate required to prepare pieces

marked as A and B.

5. A Cone with base diameter 60 mm and axis length 70 mm rests on its base on H.P. A circular hole of 30 mm

diameter is drilled through the cone such that its axis is perpendicular to V.P. and parallel to H.P. and 20mm above

the base of cone. Draw the DLS showing the effect of the hole if axis of hole is 10 mm to the right of axis of the cone.

SKETCHBOOK 02: INTERSECTION OF SOLIDS

1. A vertical square prism base 60 mm side and axis height 105 mm is standing on its base with vertical

face inclined at 30° to V.P. It is completely penetrated by a horizontal square prism of 45 mm edge of

base and 105 mm long. The axis of horizontal prism is parallel to V.P. and 15 mm in front of axis of the

vertical prism. A rectangular face of penetrating prism makes 30° with H.P. Draw the projections of

solids showing lines of intersection.

2. Figure No.5 shows the top view of a cylinder penetrated by an isosceles triangular prism. The axis

of the cylinder is parallel to H.P. and V.P. and the axis of the prism is vertical. The height of the

prism is 100mm and prism projects equally on either side of the cylinder. Draw the given top view

and project front view and side view representing the penetration curve.

3. A Vertical cylinder of base diameter 55 mm, axis length 80 mm is horizontally penetrated by another cylinder of

base diameter 45 mm and axis length 90 mm such that its axis is parallel to V.P and bisects the axis of vertical

cylinder. Draw the projections of solids showing curves of intersection.

4. A vertical square prism of 50 mm edge of the base and 100 mm axis is resting on its base on the H.P. in such a way

that one of the edges of the base makes an angle of 30 ͦ with the V.P. The prism is penetrated by a cylinder with the

axis parallel to H.P. and V.P. The diameter of the cylinder is 60 mm and axis is 15 mm in front of the axis of the prism

and is 50 mm away from the H.P. Draw three views of the arrangement showing the curves of intersection.

5. A cone base diameter 70 mm and axis height 65 mm is kept on the H.P. On its base. It is penetrated by a

horizontal cylinder of 35 mm diameter the axis of which is parallel to V.P. And 20 mm above the base of the cone.

Axis of the cylinder is 5 mm in front of the axis of the cone. Draw the projections of solids showing curves of

intersection.

SHEET 02: INTERSERCTION OF SOLIDS

1. A vertical square prism base 60 mm side and axis height 90 mm is standing on its base with vertical

face inclined at 30° to V.P. It is completely penetrated by a horizontal square prism of 45 mm edge of

base and 90 mm long. The axis of horizontal prism is parallel to V.P. and 15 mm in front of axis of the

vertical prism. A rectangular face of penetrating prism makes 30° with H.P. Draw the projections of

solids showing lines of intersection.

2. A vertical cylinder of 60 mm diameter is penetrated by another cylinder of the same size. The axis of

penetrating cylinder is parallel to both H.P. And V.P. And is 10 mm away from the axis of the vertical cylinder

.draw the projections of the two cylinders showing curves of intersection. Assume the length of vertical

cylinder as 90mm and horizontal cylinder with length 100 mm.

3. A pentagonal prism side of base 60 mm and height 100 mm long is lying on the H.P. On its pentagonal

base, such that an edge is parallel to V.P. And nearer to it. The axis of the prism is parallel to V.P. And

perpendicular to H.P. This prism is penetrated by a horizontal cylinder of base diameter 70 mm and length

120 mm such that the axis of both the prism and the cylinder bisect each other at right angle. Draw the

projection of solids showing the curves of intersection.

4. A vertical cylinder of diameter 75 mm and height 100 mm is penetrated by a horizontal triangular prism of

base side 60 mm and axis length 120 mm. A rectangular face of the prism is inclined at 45 degree to H.P.

Axis of the triangular prism is parallel to V.P.,55 mm above H.P and 6 mm away from the axis of the cylinder.

Draw the projections showing curves of the intersection

5. A vertical cone of base diameter 100 mm and axis length 90 mm is penetrated by a horizontal cylinder of

base diameter 50mm& axis length 120 mm. The axis of the cylinder is parallel to V.P. And is 30 mm above

the base of cone. The axis of cylinder is 12mm away from the axis of the cone .Draw the projections of the

solids showing curves of intersection.

SKETCHBOOK 03 CONVENTIONAL REPRESENTATION

Sheet no: 03 Conventional Representation

+ 0.018 - 0.000

+ 0.023 - 0.012

- 0.02 - 0.04

+0.02 - 0.04

SHEET NO 04 LIMITS FITS AND TOLERANCES

1. Draw Terminology used in Limits and fits [FIG 4.1]

2. Draw Type of Fits

a) Clearance Fit (Fig 4.8)

b) Transition Fit (Fig 4.9)

c) Interference Fit(Fig 4.10)

3. The Shaft and hole given as Hole ø16 and Shaft ø16 .Determine Clearance or

Interference, also state type of fit.

4. The Shaft size is given as ø40 and the hole size is ø40 .Determine the type of

fit between them

5. State the Meaning Of (i) 35H7 (ii) 50f6 (iii) 25H7 g8

6. Draw Symbol Representing the characteristics to be tolerance (Table 4.3)

7. State the Meaning of Symbols at X and Y

8. Draw Welding Symbols (Table No. 4.5, 4.6, 4.7)

9. Two mild steel plates of 8mm thickness are to be welded to have a lap joint by a fillet

weld of leg length 8mm. Represent the weld on drawing with proper symbols.

10. Two rectangular plates are to be welded with each other along the length. The

thickness and length of both the plates is 12 mm and 60 mm respectively. The plates

are to be ‘U’ butt welded with convex counter of site. Prepare welding drawings.

11. Draw Machining Symbol Showing Direction Of Lay (Table No. 4.8)

12. Draw Equivalent Surface Roughness Symbols (Table No. 4.9)

13. Draw Indication Of Machining Symbol with all parameters (Fig No 4.26)

14. State The Meaning Of each term in Figure shown below-

SHEET 05: PRODUCTION DRAWING

Sketchbook no 6: DETAILS TO Assembly

1. Draw Assembly of Screw Jack.

2. Draw Assembly of Foot step bearing.

Sheet no: 6 DETAILS TO ASSEMBLY

1. Draw assembly of Universal Coupling

Sketch Book No 07: Assembly to Details

1. Draw Details of Lathe Tool Post

2 Draw Details of Non Return Valve.

Sheet No 07: Assembly to Details

1. Draw Details of Lathe Tail Stock