Model
Question Paper

__Diploma in Mechanical Engineering__

1^{st} semester

Course title: __Engineerin__g
__Graphics-__I (Conventional)

##### Time; 4 Hrs. Max.
marks: 100

**Note: Part –A
is compulsory. Answer ANY TWO full questions from Part-B,C& D**

** **

__Part –A__

1.(a)List the standard sizes of the drawing
sheets. --
05 (b)Mention the types of lines and
their applications. --05

__Part –B__

1.Draw an ellipse when the
distance of focus from the directrix is 40and Eccentricity is ¾.-15

2.A Stone thrown from the ground level reaches a
maximum height of 45 metre and falls on the ground at a distance of 100metre
from the point of projection. Trace the path
of the stone in space. Select a scale of 1:1000 ---15

3.Draw the
involute of a circle of diameter 50mm . Also draw a tangent and normal ---15 at any point on the curve.

__PART- C__

** **

1. Draw the
projections of the following points on a common reference line: a)Point P is 25mm above the HP and
40mm behind the VP

a) Point Q is 30mm below the HP
and 40mm behind the VP

b) Point R is 25mm above the HP
and in the VP.

c) Point S is 30mm below the HP
and in the VP

d)
Point T is 35mm in front of the VP and in the HP.

--- 15

2. A line AB
measuring 70mm has its end A is 15mm in front of VP and 20mm above HP. And the
other end B is 60mm in front of VP and 50mm above HP.

Draw the
projections of the line and find the Inclinations of the line with both the
reference planes of projection.

--- 15

3.A line PQ has
its end P 15mm above HP and 10mm in front of VP. The end Q is 55mm above HP and
the line is inclined at 30° to HP. The distance between the end projectors

of
the line. When measured parallel to the line of intersection of HP and VP is
50mm. Draw the Projections of line and find its inclination with VP. ---15

__PART-D__

** **

1. Apentagonal plane lamina of
edges 20mm is resting on HP with one of its corners

touching it such that the plane surface makes an angle
of 60° with HP. The two of the base
edges containing the corner on which the lamina rests make equal
inclination with HP. If the edge
opposite to this corner makes an angle of 45° with the VP. Draw the top and
front views of the plane lamina in this position. --15

2. A
equilateral triangular lamina of 30mm side lies with one of its edges on HP
such that The surface of the lamina is inclined to the HP at 60°. The edge on
which it rests is

inclined to the
VP at 60°. Draw the projections. --15

A circular lamina of 60mm diameter rests on HP such that the surface of the lamina is inclined at 30° to HP. The diameter through which the point on which the lamina rests on HP appears to be inclined at 30° to VP in the top view. Obtain its projections.