1. Attempt any seven questions. All the questions carry equal marks.

(a) Explain the use of French-curves and lengthening-bar. Mention True or False. Eccentricity of a parabola is always equal to one.

(ii) When drawing is prepared to a size greater than the actual size of the object, full size of the scale is to be used. Enlist four types of lines used in engineering drawing practice. (Only name)
Define Representative Fraction.
Make a list of different types of planes.
Give the formula to calculate the subtended angle for the development of a curved surface of a cone.
Distinguish between Cone and Cylinder through a simple sketch.
Fill up the blanks with appropriate words selected from the list Trace of a line is obtained in the form of (line or point).
Line of a plane is obtained in that references plane where it is to be (parallel or perpendicular).

2.(a) Draw the projections and state the quadrants to which the following points belong: Point 50 mm above the H.P. and 50 mm behind of V.P.
Point in V.P. and 40 mm below H.P.
Calculate the length of scale when R.F. 1/400 and to measure up to 500 metres. Define Trace of a line Find out the relative traces in the following figure <img src='./qimages/10710-2c.jpg'> OR

Construct isometric scale and explain the relation between isometric length and actual length.

3. Draw the projections of a regular pentagonal plane of 40 mm side, having its surface inclined at 45° to H.P. and perpendicular to V.P. It rests in H.P. with one of its corners.

4. A square pyramid of base edge 40 mm and axis 70 mm long rests in H.P. with one of its base edges. Draw its projections when its axis is inclined at 30° to H.P. and parallel to V.P.

5. Construct a diagonal scale of R.F. 1/2500 and to 2500 read up to 500 metres. Show a length of 468 metres on this scale.

6. Draw the following views of the given block (Use First Angle Projection method):

(a) Top-view Front-view Side-view <img src='./qimages/10710-6.jpg'>