Instructions:
- The marks are indicated in the right-hand margin.
- There are NINE questions in this paper.
- Attempt FIVE questions in all.
- Question No. 1 is compulsory.
Q.1 Choose the correct option/answer the following (Any seven question
only):[14]
-
The size 420 mm× 594 mm of drawing sheet recommended by the bureau of Indian Standard is for
- A1
- A3
- A2
- A0
-
If the distance of moving point from the focus is 8 mm and the distance of moving
point from directrix is 2 mm then what is name of conic section?
- Ellipse
- Hyperbola
- Parabola
- circle
-
When the front view of line having length equal than the original length then which
of the following is correct
- Line is inclined to H.P. and Parallel to V.P.
- Line is parallel to H.P. and inclined to V.P.
- Line is inclined to V.P. and parallel to HP
- Line is inclined to both H.P. and V.P.
-
If a point is kept below the H.P. its front view will be
- above the XY line
- on the XY line
- below the XY line
- None of these
-
A square plane is inclined to H.P. and perpendicular to V.P. its elevation appear as
- rhombus
- straight line
- square
- rectangle
-
In orthographic projection, visual rays or line of sight for a given view ......... are
to each other
- perpendicular
- normal
- parallel
- oblique
-
Which of the following solids is not a polyhedron
- cylinder
- prism
- cube
- pyramid
-
If an isometric drawing is made use of isometric scale then the drawing are called
- orthographic view
- isometric view
- isometric perception
- isometric projection
-
When the section plane is parallel to the H.P., the true shape of the section will be
seen in
- sectional front view
- side view
- sectional top view
- isometric view
-
TTT command is used for drawing
- line
- square
- ellipse
- circle
Q.2 Solve both questions :[14]
-
The R.F. of a scale showing yard, feet and inch is 1/36. Draw a scale to read upto 5
yards and show on it, the length representing 3 yard, 2 foot and 9 inch.
-
The major axis of an ellipse is 110 mm long and the minor axis is 70 mm long. Find
the focii and draw the ellipse by 'arcs of circles method'. Draw a tangent to the ellipse
at a point on it 25 mm above the major axis.
Q.3 A circle of 40 mm diameter which rolls inside another circle of 200 mm diameter for one
revolution. Name the curve. Draw a tangent and normal at any point on it.[14]
Q.4 A line AB has its end point A 16 mm above the H.P. and 25 mm infront of the V.P. The
length of the line in the plan is 60 mm and length of the line in elevation is 65 mm. Distance
between the projectors of end points A and B is 45 mm. Draw the projections of the line.
Find true length of the line and its inclination with H.P. and V.P.[14]
Q.5 A regular hexagonal plane of 30 mm side has one of its corners on the H.P. The surface
of the plane is inclined at 30° to HP. Draw the projection of the plane when diagonal passing
through the corner on H.P. makes angle of 45° to the V.P.[14]
Q.6 A pentagonal pyramid side of base 30 mm and axis length 60 mm kept on the H.P. on its
base with a side of base parallel to V.P. and nearer to it. It is cut by a vertical section
plane which is parallel to V.P. and 10 mm infront of the axis of the pyramid. Draw top view,
sectional front view and true shape of section.[14]
Q.7 A cylinder of diameter 50 mm and height 60 mm is resting vertically on one of its ends
on the H.P. It is cut by a plane perpendicular to the V.P. and inclined at 30° to the HP.
The plane meets the axis at a point 30 mm from base. Draw the development of the lateral
surface of the lower portion of the cylinder.[14]
Q.8 Isometric view an object is given below.[14]
-
Draw the front view looking in the direction X, left-side view and top view of the
object by first angle projection method.
Q.9 Write the sequence of CAD commands required to create a 150 mm × 150 mm square with a
circle of 50 mm radius at its centre.[14]
