PART – A (10 x 2 = 20)
Answer All the Questions
1. What is meant by orthographic projection?
2. State the top and front views of a vertical
cylinder of diameter 50 mm and height
70 mm resting on HP with one of its bases.
3. A rectangular prism of height 15 cm with
ends of size 6 x 10 cm is to be
developed completely. What will be the shape of the development?
4. What are critical points in the intersection
of surfaces?
5. Mention any two advantages of isometric
projection.
6. Name any two methods of drawing the
isometric projection of a circle.
7. When will the size of the perspective be
greater than that of the object?
8. State the uses of perspective drawings.
9. What is the R.C.C. mix used for lintel and
ground floor concrete?
10. What
is weathering course? Give the details of it used for house building.
PART – B (5
x 12 = 60)
Answer All the Questions
11. Draw top, front and side
view of the object given below. Indicate major
dimensions.
(or)
(or)
12. (a) Describe the method of obtaining the orthographic projections of an object with example. (6)
(b) State the conventions to be followed while drawing dotted lines. (6)
(b) State the conventions to be followed while drawing dotted lines. (6)
13 A cone of base diameter 60
mm and altitude 70 mm resets on its basis
on the HP. It is cut by a plane perpendicular to both the HP and the VP and passing through the cone
10 mm to the left of the axis of
the cone. Draw the development of the lateral surface of the right portion of the cut cone.
(or)
(or)
14. A cylinder of diameter 40 mm
pierces through another vertical cylinder
of diameter 40 mm. The axes are at right angles and are separated by 6 mm. The axis of the vertical cylinder is
nearer to the VP. The axis of the
penetrating cylinder is parallel to both the HP
and the VP. Draw the projections of the cylinders and show the curves of intersection.
15. A hemi – spherical vessel of
diameter 90 mm is placed centrally over
a cylinder of diameter 60 mm and height 75 mm which, in turn, is kept centrally over a square prism of base side 80 mm and height 20 mm. Draw the isometric projection of
the disposition of the solids.
(or)
(or)
16. A cone of base diameter 50
mm and height 55 mm is resting on its
base on the HP. It is cut by a plane perpendicular to the VP and inclined at 30° to the HP. The plane meets
the axis at a distance of 25mm
from the apex. Draw the isometric view of the truncated
cone.
17. A hexagonal prism of base 20
mm and axis length 50 mm rests on the
ground plane on one of its rectangular faces with its axis inclined at 30° to the picture plane. A
corner of the base is touching the
picture plane. The station point is 60 mm in front of the picture plane and lies in a central plane that bisects the
axis. The station point is 40 mm
above the ground plane. Draw the perspective
view of the prism.
(or)
(or)
18. A frustum of a hexagonal
pyramid of base edge 24 mm, top edge 12
mm and height 45 mm is placed on the ground with a base edge parallel to the picture plane and 10 mm behind the picture plane. The observer’s eye is 50 mm in front of
the picture plane and 75 mm above the
ground. The eye lies in a central plane that passes
through the center of gravity of the frustum. Draw the perspective view of the frustum.
19. The line diagram of a
village library building is shown below. Draw
the top view of the building taking section at window – sill level. Also draw the front view of the building.
Partition walls are of 100 thick
and main walls are of 200 thick. Assume suitable data wherever necessary.
(or)
(or)
20. The line diagram of a
residential building is shown below. Draw to
a suitable scale, front view, top view and sectional view taken along AA. Make suitable assumptions. The
following standard dimensions for
doors and windows may be taken:
D – Panelled door – 900 x 1950
D1 – Door – 800 x 1950
D2 – Door – 800 x 1800
W – Window – 1200 x 1000
V – Ventilator – 800 x 600
D – Panelled door – 900 x 1950
D1 – Door – 800 x 1950
D2 – Door – 800 x 1800
W – Window – 1200 x 1000
V – Ventilator – 800 x 600
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