Machine Drawing Question Paper of 3rd Semester AE Download Previous Years Question Paper 2

Roll no……………..

Total no. of Questions:09]

B.Tech. (sem.-3^rd)

MACHINE DRAWING

SUBJECT CODE: ME-207

PAPER ID:[A0804]

Time : 03 Hours

Instruction to Candidates:

1.     SECTION-A is compulsory consisting of Ten question carrying Two marks each.

2.     SECTION-B contains FIVE questions carrying Five marks each and students has to attempt any four questions.

3.     SECTION –C contains Three questions carrying Ten marks each and students has to attempt any Two questions.

SECTION –A

l. Write briefly :

(a) Mention various types of bearings.

(b) Name two head forms of rivets.

(c) What is Pitch?

(d) Draw the symbol of third angle projections.

(e) Draw the free hand sketch of hexagonal bolt.

(f) What are the functions of connecting rod in IC engines?

(g) Sketch the convention of a round section.

(h) The root angles in BIS metric thread and BSW threads are respectively ................ and ................ .

(i) What is Lead?

(j) What is the specific use of an expansion pipe joint?

SECTION-B

2.Draw by a conventional method a right handed square thread. Take outside

diameter = 64 mm, threaded length = 65 mm, and pitch = 15 mm.

3. Two steel plates, each 15 mm thick are joined by a single riveted lap

joint. Draw two views to full size. Show 4 rivets and section line in plan.

4. Discuss the use of following commands available in Auto-CAD :

(a) Explode

(b) Offset

(c) Mirror.

5. Draw free hand upper half sectional-front elevation of a protected type flange coupling on proportionate scale.

6. Represent two views of hexagonal nut and square nut with proportions

and die of bolt as 30mm.

SECTION-C

7. Draw the sectional top view and front view of the petrol engine connecting rod from the given figure 2 and part list :Part list

Part No            Name                    Material                        Qty.

1                                Rod                      Forged steel                   1

2                                Cap                     Forged steel                   1

3                               Bearing brass       Gun metal                      2

4                     Bearing bush        Phosphor bronze           1                

5                                Bolt                    Medium carbon steel      2

6                                Nut                     Medium carbon steel      2

8. Figure below shows the pictorial view of a FOOT STEP BEARING.

Draw to a conventional scale the following:

(a) Full sectional front view.

(b) Top View.

9. Figure below shows flanges, keys and shafts to be connected in a flange

coupling, Assemble and draw elevation and side view in full. Note that

nuts and bolts are to be added.