Recommandations for II-Mid in Engineering Drawing

Recommendations for II-Mid in Engineering drawing

1. A plot of 12m x 12m is represented by 4cm². Draw a scale to read upto 6 decameters. Represent 45m on it.

2. The distance between Bombay and Poona is 180km. A passenger train covers this distance in 6 hours. Construct a plain scale to measure time upto a single minute. The R.F of the scale is 1/200000. Find the distance covered by the train in 36 minutes.

3. The top view of a 75mm long line AB measures 65mm, while the length of its front view is 50mm. Its one end A is in the H.P. and 12mm in front of the V.P. Draw the projections of AB and determine its inclinations with the H.P. and the V.P.

4. a) Draw the projections of the following points on the same ground line, keeping the projectors 25mm apart.

     i)  A, in the H.P. and 20mm behind the V.P.

     ii) B, 40mm above the H.P. and 25mm in front of the V.P.

    iii) C, in the V.P. and 40mm above the H.P.

    iv) D, 25mm below the H.P. and 25mm behind the V.P.

    v) E, 15mm above the H.P. and 50mm behind the V.P.

   vi) F, 40mm below the H.P. and 25mm in front of the V.P.

  vii) G, in both the H.P. and the V.P.

b) A point A is situated in the first quadrant. Its shortest distance from the intersection point of H.P., V.P. and auxiliary plane is 60mm and it is equidistant from the principle planes. Draw the projections of the point and determine its distance from the principle planes. 

5. The projectors of the ends of a line AB are 5cm apart. The end A is 2cm above the H.P. and 3cm in front of the V.P. The end B is 1cm below the H.P. and 4cm behind the V.P. Determine the true length and its inclinations with the two planes.

6. A line PQ 100mm long, is inclined at 30⁰ to the H.P. and at 45⁰ to the V.P. Its mid-point is in the V.P. and 20mm above the H.P. Draw its projections, if its end P is in the third quadrant and Q in the first quadrant

7. A semi-circular plate of 80mm diameter, has its straight edge on V.P. and inclined at 30⁰ to H.P., while the surface of the plate is inclined at 45⁰ to V.P. Draw the projections of the plate.

8. A regular hexagon plane of 45mm side has a corner on H.P., and its surface is inclined at 45⁰ to H.P. Draw the projections, when the diagonal through the corner. which is on H.P. makes 30⁰ with V.P.

9. Draw the projections of a rhombus, having diagonals 120mm and 60mm long, the smaller diagonal of which is parallel to both the principle planes, while the other is inclined at 30⁰ to H.P.

10. Construct a diagonal scale to read kilometers, Hecta meters and decameters and long enough to measure upto 6 kilometers. When a line of length 1 cm represents a distance of 0.5 kilometers, Calculate the R.F and  indicate a distance of 2.45 kilometers on the scale.

11. A regular pentagon of 30mm side, is resting on one of its edges on H.P. which is inclined at 45⁰ to V.P. Its surface is inclined at 30⁰ to H.P. Draw its projections.