PTU ME102 Engineering Drawing May 2011 Question Paper for sem II

BE (First/Second) Semester Exam(Common to all Branches)
Time: 3 hrs
Maximum Marks: 60

Instruction to Candidates:

1. Section A is compulsory.
2. Attempt any five questions from Section B and C.
3. Select atleast Two questions from Section B and Two from Section C.

SECTION A (Marks: 2 each)

1. a) Draw the symbol of first angle and third angle projections.

Ans: True. Refer article 8.4 page 8.2 of ED - Basant Agrawal, TMH.

b) Show the unidirectional system of dimensioning with the help of a sketch.
Ans: Refer article 2.8 page 2.6 of ED - Basant Agrawal, TMH.

c) Draw the centre line and a cutting plane line.
Ans: Refer problem 10.11 page 10.11 of ED - Basant Agrawal, TMH.

d) Show the true angle of a line inclined to HP and parallel to VP.

Ans: Prism. Refer Fig. 11.2 page 11.2 of ED - Basant Agrawal, TMH.
e) Define an Auxillary plane and name them.

Ans: Triangle. Refer Fig. 11.4(b) page 11.3 of ED - Basant Agrawal, TMH.
f) Show the frustum of a CONE.

Ans: Refer Fig. 11.6 page 11.4 of ED - Basant Agrawal, TMH.
g) AWhat do you mean by solids of revolution?

Ans: Pyramid. Refer Fig. 11.3 page 11.3 of ED - Basant Agrawal, TMH.
h) Differentiate between a prism and pyramid with the help of a sketch.

Ans: Parallel. Refer article 12.4.3 page 12.6 of ED - Basant Agrawal, TMH.
i) What do you mean by parallel line development.

Ans: Radial line method. Refer article 13.3 page 13.1 of ED - Basant Agrawal, TMH.
j) Draw free hand sketch of an isometric scale.

Ans: Curve. Refer problem 14.9 page 14.10 of ED - Basant Agrawal, TMH.

SECTION B (Marks: 8 each)

2. Construct a diagonal scale to measure 0.01 and 0.1 of a metre and long enough to measure upto 6 metres when one metre is represented by 2.5 cms. Find RF and indicate on the scale a distance of 5.55 metres.

Ans: 45 degree, reference. Refer article 7.18 page 7.17 of ED - Basant Agrawal, TMH.

3. A straight line AB is 60 mm long. It makes an angle of 25° to HP and 55° to VP. The end A is in the VP and 20 mm above HP. Draw its projections in first angle.

Ans: Refer Problem 9.52 page 9.53 of ED - Basant Agrawal, TMH.

4. A cone of diameter 60 mm and height 60 mm is resting in the HP on one of its generators. Draw its projections if its axis is kept parallel to VP.

Ans: Refer problem 11.45(b) page 11.45 of ED - Basant Agrawal, TMH.
5. A square prism with a base side of 45 mm and an axis length of 90 mm is resting in HP in such a way that its vertical faces are equally inclined to the VP. A vertical sectional plane passing through the mid points of two adjacent sides of the base (away from XY) cuts the prism. Draw its projections.

Ans: imilar to problem 12.19 page 12.21 of ED - Basant Agrawal, TMH.

SECTION C (Marks: 8 each)

6. A hexagonal prism of side of base 25 mm and length of axis 60 mm is kept on the ground on its base such that the two opposite side of the base are parallel to the VP. It is cut by an AIP inclined at 45°. to HP and passing through one of the top comers of the prism. Draw the development of the surface of the cut prism.

Ans: Refer problem 15.20 page 15.16 of ED - Basant Agrawal, TMH.
7. A vertical square prism with a 60 mm base side and an 80 mm axis length is coinpletely penetrated by a horizontal square prism with a 40 mm base side and 100 mm axis length such that their axes bisect each other. The faces of the prism are equally inclined to VP. Draw its projections.

Ans:
8. Draw the isometric view of the three squares of sides each 60 min, 20 mm and 40 mm placed one over the other centrally and in the order as mentioned i.e. 60 mm, 20 mm & 40 mm.

Ans: Refer article 13.6 page 13.6 of ED - Basant Agrawal, TMH.

9. Draw elevation in the direction of aITow, plan and right hand side view of the given figure in First angle projection show all dimensions in unidirectional system of dimensioning.

Ans: Refer Problem 14.6 page 14.7 of ED - Basant Agrawal, TMH.