Subject :Mechanical Drafting

(Code: 3321901)

ASSIGNMENT 01

1. State the methods of obtaining the line of intersection.

2. Draw symbols of first angle projection method and third angle projection

method.

3. What is true shape of section in section of solids ?

4. Write the type of section ?

5. What is frustum and truncated of solid ?

6. Write the name of method for developing the surface of solid ?

MULTIVIEW

1) Pictorial view of an object is shown in FIG.-1 using “First Angle Projection Method”

draw following views

(1) Front View (2) Top View (3) left hand side view

FIG:01

2) Draw following views of FIG.-2 using “First Angle Projection Method”

(1) Front View (2) Top View (3) left hand side view

FIG.-2

3) Draw following views of FIG.-03 using “First Angle Projection Method”

(1) Front View (2) Top View (3) left hand side view

FIG.-03

4) Draw following views of FIG.- 4 & FIG :05 using “First Angle Projection Method.”

(1) Sectional Front View section AB (2) Top view (3) left hand side view

FIG:04

FIG 05

ASSIGNMENT 02

(2) MISSING VIEWS

1) Draw missing side view of FIG 06 using “first angle projection method.”

FIG 06

2) Draw missing side view of FIG. 07using “first angle projection method.”

FIG 07

3) Draw Missing Top view of FIG. 08 using “First Angle Projection Method.”

FIG 08

ASSIGNMENT 03

SECTION OF SOLID

1. A regular pentagonal pyramid, side of base 30 mm and height 65 mm, lies on

one of its triangular faces in H.P. Its axis is parallel to V.P. A section plane,

perpendicular to the V.P and parallel to the H.P, cuts its axis at a point P which

is 7 mm away from its base. Draw its front view and sectional top view.

2. A hexagonal prism of base side 30 mm and axis length 60 mm is resting on H.P

on one of its bases with two of the vertical faces perpendicular to V.P. It is cut

by a plane inclined at 60º to H.P and perpendicular to V.P and passing through

a point at a distance 12 mm from the top base. Draw its front view, sectional top

view and true shape of section.

3. A pentagonal prism of 25mm side and 60mm height is standing on one of its

base side corner on the H.P such that its axis makes an angle of 60º with the

H.P and parallel to V.P. A sectional plane is cutting this prism which makes an

angle of 45º with the H.P. This cutting plane is perpendicular to V.P and

passing through the top most corner. Draw sectional top view and True shape

of the section of this prism.

4. A cone having base diameter 60 mm and axis 80 mm long is standing on its

circular base on the H.P. A section plane making an angle of 45º with the H.P

and passing through the mid point of axis cutting this cone.Draw its front

view,sectional top view and true shape of the section.

5. A square pyramid having 40 mm base side and 60 mm height is standing on its

base on H.P such that its base sides makes an equal angles with the V.P. A

section plane inclined at 45º to H.P and perpendicular to V.P is cutting this

pyramid by passing through the mid point of the axis of this pyramid.Draw front

view, sectional top view, and true shape of the section.

6. A triangular pyramid having 65 mm base side and 75 mm long axis is standing

on its base sides is parallel to and nearer to V.P. a section plane inclined at 30⁰

To H.P and passing through a point which is on axis and 30 mm above the

base is cutting this pyramid.Draw its section plane and true shape of the

section.

ASSIGNMENT 04

PROJECTIONS OF SOLIDS

1. A square pyramid edge of the base 25mm and height 60 mm rests on one of its

base corner on H.P with its axis inclined at 45º to H.P. If the top view axis is

making an angle of 30º with the V.P than draw the projections of given square

pyramid.

2. A cylinder, diameter of base 50 mm and height of axis 70 mm, rests on H.P on

its base rim such that its axis is inclined at 45˚ to H.P and top view of the axis

is inclined at 60˚ to the V.P. Draw its projection.

3. A regular hexagone pyramid, side of base 40 mm and height 75 mm is resting

on one of its triangular faces on the h.p and the edge of base contained by that

triangular face makes an angle of 30º with the V.P .Draw its projections.

4. Draw the projection of a cone having base diameter 50 mm and axis 60 mm

long,when it is resting on the H.P on a point on its base circle in such a way that

one of its generators is perpendicular ton the H.P and plan of its axis makes an

angle of 45º with V.P

5. A cylinder base 50 mm diameter and 70 mm long has its axis parallel to and

30mm above the H.P. and inclined at 45º to V.P .Draw the projection of this

cylinder.

6. A triangular pyramid of 40 mm base sides and 50 mm length of axis is standing

on one of its base side on the H.P such that the triangular face containing the

base side in H.P is perpendicular to H.P. if the side on H.P makes an angle of

45⁰ to V.P then draw its projections.

ASSIGNMENT 05

PENETRATION AND INTERSECTION

1. A cylinder 50mm diameter is rest on H.P is cut by another square prism 20mm

side its face is inclined equally inclined to H.P and V.P axis of both cylinder and

prism is intersecting at right angle. Draw the front view showing the line of

intersection.

2. A circular cone base diameter 56 mm and height 66 mm, resting on its base on

H.P. It is completely penetrated by a cylinder of base diameter 30 mm. The axis

of cylinder is parallel to both H.P and V.P and intersects the axis at a distance

of 20 mm from its base. Draw projections of solids showing the line of

intersection. Assuming suitable length of penetrating cylinder.

3. A square prism 40 mm base and 80 mm long is standing on H.P. on its base. It

is penetrated by a horizontal square prism having 30 mm base sides and 80

mm height such that axis of both the prism bisects one – another. Vertical faces

of both prisms are equally inclined with V.P. and axis of both the prisms are

parallel to V.P. Draw projections of these prisms showing the lineof intersection

4. A vertical cylinder of 40mm diameter is penetrated by another horizontal

cylinder of 30mm diameter. Height of both cylinders are same and is 80 mm

The axes of both cylinders are parallel to V.P. and bisects each other at right

angles. Draw the projections showing curves of intersection.

5. The rectangle faces of a vertical square prism having 40 mm sides makes an

equal angle with V.P.A cylinder having 30 mm base diameter is intersecting this

prism,such that the axis of the cylinder is parallel to V.P and 5 mm away from

the axis of prism.Draw projections showing the curves of intersection of both the

solids.

6. A vertical cylinder of 80 mm diameter and 115 mm height is penetrated by a

cone , base 75 mm diameter and their axis bisecting each other at right angles

.Draw the front view showing line of intersection assuming the axis of the

penetrating cylinder to br parallel to the V.P.

ASSIGNMENT 06

SURFACE DEVELOPMENT

1) Draw the development of given “p” part of pyramid in ‘FIG 09’

2) Draw the development of given “p” part of cylinder in ‘FIG 10’

3) Draw the development of given “p” part of cone in ‘FIG 11’

4) Draw the development of given “p” part of pyramid in „FIG 12’

FIG :09 FIG :10

FIG :11 FIG :12

5)Draw the development of given “p” part of cone in FIG 13

FIG :13

6) Draw the development of hexagonal pyramid having equilateral triangular hole in it

as shown in the FIG :14

FIG :14