10ME36A/46AUSN

Third/Fourth Semester B.E. Degree Examination, December 2012

(ME/rP/rM/MA/AE)

COMPUTER AIDED MAGHINE DRAWING

Time: 3 Hours Ma.x. Marks: 100

Note: l. Answer ony ONE question from eoch of the ports A, B ond C.2. All the colculotions should be on the onswer sheet supplied.3. Missing doto moy be ossumed.

PART AQ. No. 1. A cone of base diameter 50mm and axis length 65mm rests with its base on the

HP. Draw the true shape of section made by a section plane perpendicular tothe VP and inclined to the HP at 500 and passing through an end point on thecircumference of the base circle of the cone.

Q. No. 2. Draw the following profiles.a) Acme threadb) ISO thread of pitch 50 mm

20 Marks

20 Marks

Part B

Q. No. 3. Draw sectional FV & TV of the double riveted chain butt joint with double strap,taking t = 12mm. lndicate dimensions . 20 Marks

Q. No. 4. Draw sectional FV & SV of an Oldham's coupling to connect two shafts ofdiameter 25mm. lndicate dimensions. 20 Marks

Part C

Q. No. 5. Details of "SCREW JACK" are shown in following figure'1. Assemble the partsand draw the following views of the assembly:

i. Front view showing right half in section.ii. Top view. 60 Marks

Q. No. 6. Following figure 2 shows the details of Machine vice. Assemble the parts of theMachine vice and draw i) Sectional front view ii) Top view. 60 Marks

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