DEPARTMENT OF APPLIED SCIENCES
Assignment cum Tutorial Sheet (ATS) No. 7
COURSE:B.E
BRANCH: ECE/ME
YEAR & SEMESTER: 2012 BATCH/1 SEM
SUBJECT CODE & NAME : MEL4102 & ENGINEERING GRAPHICS
SUBJECT TEACHER : SHAKUNPREET KAUR/ HARVINDER SINGH
TOPICS COVERED: PROJECTION OF SOLIDS-I
Section–A
Q-1
To represent a solid in orthographic projections, at least …… views are required.
Q-2
A solid having four equal equilateral triangular faces is called …….
Q-3
When the axis of a solid is parallel to both HP and VP …….. shows the true shape of the base.
Q-4
Differentiate between right and oblique solids?
Q-5
Differentiate between prism and pyramid ?
Section-B
1. Draw the “top and front views” of the following solids, resting on their bases as
per details given below. Use a common reference line.
a) A cone of 40 mm diameter and 60 mm height.
b) A pentagonal prism whose edge of base is 25 mm and is 50 mm long,
having one of its base edges perpendicular to VP.
c) A hexagonal pyramid of 25 mm edge and 50 mm height with an edge of its
base parallel to VP
2. Draw the projections of a cube 30 mm side when it is resting on its base on HP in
the following conditions:
a. One of the base edges makes an angle of 45º to VP.
b. One of the base edge is parallel to VP (This is same as if one of the base
edges is perpendicular to VP).
3. Draw the three views of a square pyramid of base edges 30 mm and axis 50mm,
resting on its base in HP, with one of base edges parallel to VP and axis
perpendicular to the HP.
4. A pentagonal prism, side of base 30mm and axis 50 mm long, has one of its
rectangular faces on the HP with its axis perpendicular to VP. Draw the front and
top views when one end of prism is 20 mm in front of the VP.
5. An equilateral triangular prism, side of base 25 mm and 50 mm long axis is resting
with one of its rectangular faces on horizontal plane with its axis parallel to both
the reference planes. Draw the top, front and side views of the triangular prism.
6. A regular pentagonal pyramid with base edges of 30 mm and height 60 mm has its
base parallel to VP. One of its base edges is in HP. Draw three views of the
pyramid.
7. A pentagonal prism with edge of base 20 mm and length 50 mm, is resting on one
of its base edges on horizontal plane with its axis inclined at 45º to HP. Draw its
projections
DEPARTMENT OF APPLIED SCIENCES
Assignment cum Tutorial Sheet (ATS) No. 8
COURSE:B.E
BRANCH: ECE/ME
YEAR & SEMESTER: 2012 BATCH/1 SEM
SUBJECT CODE & NAME : MEL4102 & ENGINEERING GRAPHICS
SUBJECT TEACHER : SHAKUNPREET KAUR/ HARVINDER SINGH
TOPICS COVERED: PROJECTION OF SOLIDS-II
Section–A
Q-1
In the projections of a solid, when two lines representing the edges cross each other, one them must be.
Q-2
An object having ………. Dimensions is called a solid.
Q-3
An oblique solid is one, which has its axis ……… base.
Q-4
If a solid rests on an edge of its base on VP, it must be kept ……. To VP.
Q-5
What are the different types of solids?
Q-6
Illustrate solids of revolution with simple sketches?
Section-B
1.
A pentagonal pyramid, side of base 30 mm and height 50 mm is resting on one of
its triangular faces on the horizontal plane with its axis parallel to VP. Draw its
projections.
2.
A square pyramid, having base of 50 mm sides and height of 75mm, is held in such
a way that one of its edges joining the base and the apex is perpendicular to the
HP. Draw its projections.
3.
Draw the projections of a cylinder 40 mm diameter and axis 60 mm long, when it
is resting on a point of base circle on HP with its axis inclined at 30º to HP and
parallel to VP.
4.
A right circular cone of 30 mm diameter of base and 50 mm long axis is resting on
a point of base circle on vertical plane with its axis inclined at an angle of 45º to
VP and is parallel to HP. Draw its projections.
5.
A square prism, edge of base 25 mm and 50 mm long has its axis inclined at 45º to
the HP. One of the edge of its base on which the prism rests is inclined at 30º to
thee VP. Draw its projections.
6.
A right circular cone of 40 mm diameter and 60 mm long axis , is resting on one of
its generators on HP in such a way that top view of axis makes an angle of 30º with
the VP and apex towards VP. Draw its projections.
DEPARTMENT OF APPLIED SCIENCES
Assignment cum Tutorial Sheet (ATS) No. 9
COURSE:B.E
BRANCH: ECE/ME
YEAR & SEMESTER: 2012 BATCH/1 SEM
SUBJECT CODE & NAME : MEL4102 & ENGINEERING GRAPHICS
SUBJECT TEACHER : SHAKUNPREET KAUR/ HARVINDER SINGH
TOPICS COVERED: SECTION OF SOLIDS
Section–A
Q-1
Distinguish between frustum of a solid and truncated of a solid?
Q-2
Why the solids are sectioned?
Q-3
What is the difference between apparent section and true section?
Q-4
The sectional views are used to see the …….. details of the objects.
Q-5
The projection obtained on a VP of a cut solid is called sectional ……….
Q-6
What is a cutting plane?
Q-7
What is the principle of sectioning?
Q-8
Name different types of sectioning methods?
Q-9
What do you mean by sectional view?
Q-10
Where and why a cutting plane is drawn in a drawing?
Section-B
1.
A triangular prism with side of base 40 mm and length of axis 60mm is lying on one of its
rectangular faces on HP, such that its axis is parallel to both HP and VP. It is cut by a section
plane parallel to HP at a distance of 25 mm from the HP. Draw its front and sectional top view.
2.
A cylinder of 40 mm diameter and 60 mm long is lying in such a way that its axis makes an
angle of 30 with VP. It is cut by a horizontal section plane such that its VT is at a distance of 12
mm from the axis. Draw its front and sectional top view.
Cutting section Plane Parallel to VP
3.
A cube of 40 mm side is resting on one of its faces on HP with a vertical face inclined at 30 to
VP. It is cut by a section plane parallel to VP and passes 15 mm away from the axis. Draw its
top view and sectional front view.
4.
A triangular prism of side 35 and height 80 mm is resting with one of its rectangular faces on the
HP. The axis of the prism is inclined at 45 to VP. A section plane perpendicular to Hp and
parallel to VP cuts the solid and bisects its axis. Draw the sectional front view.
Cutting Section Plane Perpendicular to VP and Inclined to HP
5.
A cube of 50 mm side is resting on one of its faces on HP with an edge of its base making an
angle of 30º with VP. A section plane inclined at 60 to the HP, cuts the cube and passes
through a point 25 mm from the base along the axis. Draw the apparent and true sections of the
solids.
6.
A hexagonal pyramid of side 25 and height 65 mm is resting on its base on Hp with one of its
side parallel to VP. It is cut by a section plane inclined at 60º to HP and passes 40 mm above
the base along the axis. Draw the true shape of the cut surface of the pyramid.
Cutting Section Plane Perpendicular to HP and Inclined to VP
7.
A pentagonal pyramid of base 30mm and axis 60mm has its base on the HP and an edge of the
base parallel to VP. An auxiliary inclined plane perpendicular to HP and inclined at 45º to VP
cuts the solid at a distance of 12 mm from the axis. Draw its sectional front view and true shape
of the section.
DEPARTMENT OF APPLIED SCIENCES
Assignment cum Tutorial Sheet (ATS) No. 10
COURSE:B.E
BRANCH: ECE/ME
YEAR & SEMESTER: 2012 BATCH/1 SEM
SUBJECT CODE & NAME : MEL4102 & ENGINEERING GRAPHICS
SUBJECT TEACHER : SHAKUNPREET KAUR/ HARVINDER SINGH
TOPICS COVERED: ORTHOGRAPHIC PROJECTION
DEPARTMENT OF APPLIED SCIENCES
Assignment cum Tutorial Sheet (ATS) No. 11
COURSE:B.E
BRANCH: ECE/ME
YEAR & SEMESTER: 2012 BATCH/1 SEM
SUBJECT CODE & NAME : MEL4102 & ENGINEERING GRAPHICS
SUBJECT TEACHER : SHAKUNPREET KAUR/ HARVINDER SINGH
TOPICS COVERED: ISOMETRIC PROJECTION
Section–A
Q-1
The isometric length is in the ratio of …………….. of the true length.
Q-2
An isometric projections, dimensions lines are drawn parallel to ………..
Q-3
A circle in isometric projection appears as …………
Q-4
What is the difference between isometric projection and isometric drawing ?
Q-5
Describe the four center method of drawing isometric projection of a circle?
Q-6
Define isometric scale and how is it constructed ?
Section-B
Objects with Isometric lines
1.
Draw the isometric projections of three bricks of size 200 mm x 200 mm and 100
mm height so placed that two are put together and the third one is on top of the two
(placed centrally).
2.
A square prism of side 30 mm and height 50 mm is resting on HP. A vertical
square 20mm is cut through its face reaching other face of the prism. Draw the
isometric projection of the prism.
Objects with non- Isometric lines
3.
A hexagonal prism of 20 mm side and 50 mm height is resting on HP. Draw the
isometric projection of the prism.
4.
A hexagonal pyramid of 20 mm side and 50 mm height is truncated by a plane
parallel to HP and passing through a point 30 mm from base. Draw isometric
projection of the pyramid
Objects with Curved Surfaces
5.
A cylinder having its length and diameter equal to 60 mm and 30 mm respectively
is lying on ground with its circular faces parallel to the VP. Draw its isometric
projection.
6.
A right circular cone of base diameter 30 mm and height 40 mm rests centrally on
a square block of 50 side and 20 mm thick. Draw the isometric view of the two
solids.
7.
Draw the isometric projection of a sphere of 40 mm diameter, resting centrally on a
square prism of 45 mm edges and 25 mm thick.
DEPARTMENT OF APPLIED SCIENCES
Assignment cum Tutorial Sheet (ATS) No. 12
COURSE:B.E
BRANCH: ECE/ME
YEAR & SEMESTER: 2012 BATCH/1 SEM
SUBJECT CODE & NAME : MEL4102 & ENGINEERING GRAPHICS
SUBJECT TEACHER : SHAKUNPREET KAUR/ HARVINDER SINGH
TOPICS COVERED: DEVELOPMENT OF SURFACES
Section–A
Q-1
What do you mean by development of surfaces?
Q-2
What are different methods of development of surfaces?
Q-3
Give practical examples of development of surfaces.
Q-4
……….. method is used for the development of sphere.
Q-5
What is the importance of development of surface?
Q-6
Distinguish between single curved surface and double curved surface.
Section-B
Parallel Line Method (Prism and Cylinders)
1. A pentagonal prism of 25 mm base edges and 50 mm long is resting on its base
with an edge of base at 45º to VP. The prism is cut by a section plane inclined at
30º to HP and passes through a point 25 mm from the base along the axis.
Develop the lateral surface of the truncated prism.
2. A right cylinder of 30 mm diameter and 40 mm height is cut by a section plane
inclined at 30º to HP and passes 20 mm from base along the axis. Draw the
development of the truncated cylinder.
3. A square prism of 50 mm edge and 80 mm height stands on one of its faces on the
HP with a vertical face making an angle of 45º with VP. A horizontal hole of 25
mm diameter is drilled centrally through the prism such that the hole passes
through the opposite vertical edges of the cube. Draw the development of the
surface of the prism and the hole.
Radial Line Method (Pyramids and Cones)
4. Develop the surface of a square pyramid having base edges 25 mm and the axis
60 mm long, the edge of the base of the pyramid is parallel to VP.A section plane
inclined at 300 to HP cuts the pyramid at a distance of 25mm from the apex.
5. Develop the surface of a right circular cone of 50 mm base diameter and 60 mm
long axis when a section plane inclined at 600 to HP bisects the axis
6. A pentagonal pyramid, edges of base 30 mm and height of axis 45 mm, stands on
its base with an edge of base parallel to VP. A section plane cuts the pyramid at a
point 30 mm from the base along the axis and makes an angle of 45º with HP.
Draw sectional top view and development of truncate portion of the pyramid.