Download PTU B-Tech AE 2020 Dec 3rd Sem 76402 Machine Drawing Question Paper

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Total No. of Pages : 03
Total No. of Questions : 15

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B.Tech. (AE) (2018 Batch) (Sem.-3)
MACHINE DRAWING
Subject Code : BTAE-304-18
M.Code : 76402
Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains THREE questions carrying FIVE marks each and students have to attempt any TWO questions.
3. SECTION-C contains TWO questions carrying THIRTY marks each and students have to attempt any ONE questions.
4. Assume any missing data suitably.

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SECTION-A

Write briefly :

1. What is ‘Chamfering’?
2. Draw the symbol for single butt weld.
3. Provide classification for various types of fits.

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4. Explain the importance of sectional views.
5. What are the applications of temporary fastenings?
6. What are multi start threads?
7. What is the function of a Key?
8. Explain the method of correct dimensioning of a circle and arc.

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9. What is stud?
10. How the allowance and tolerances are different to each other?

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SECTION-B

1. Draw the free hand sketch of top view and sectional view of a single riveted double cover butt joint. The diameter rivet is 26 mm.

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2. Draw free hand sketch of BSW threads with 20 mm pitch along with calculation and dimensioning.
3. Draw free hand sketch of single plate friction clutch.

SECTION-C

1. Draw the assembly drawing (front and top view) of Universal coupling. The part details are provided in Fig. 1.

FIG. 1

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1. Fig. 2 shows the various details of lathe tail stock. Draw the following view of assembly.
   1. Full sectional front view
   2. Right side view

FIG.2

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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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