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Max. Marks: 100

First Semester B.E. Degree Examination, January 2013

GOUPUTER AIDED E1{GI1{EERI]{G DRAWING

Time: 3 Hours

Nole: I . Answer three full questions3. Drow to octuol scole

2. Use A4 sheets supplied4. Missing doto moy be ossumed

1. a. A point is 30 mm in front of VP 20 mm above HP & 25 mm in front i behind / from LPP.

Draw its Projections and name the side view. (10 Marks)

b. A line AB has its end A 20 mm above the HP and 30 mm in front of the VP. The otherend B is 60 mm above the HP and 45mm in front of VP. The distance between endprojectors is 70 mm. draw its projections. Determine the true length and apparentinclinations. (20 Marks)

A rectangular plate of negligible thickness of size 35x20mm has one of its shorter edges inVP with that edge inclined at 40o to HP. Draw the top view if its front view is a square ofside 20mm. (30 Marks)

A pentagonal pyramid 25 mm sides of base and 50 mm axis length rests on HP on one ofits slant edges. Draw the projections of the pyramid when the axis is inclined to VP at 45o.

(40 Marks)

A square pyramid of side of base 45mm, altitude 70mm is resting with its base on HP withtwo sides of the base parallel to VP. The pyramid is cut bf a section plane which isperpendicular to the VP and inclined at 40' to the HP. The cutting plane bisects the axis ofthe pyramid. Obtain the development of the lateral surfaces the truncated pyramid.

(30 Marks)

A cone base diameter 45mm and height 65mm is placed centrally on the top face of apentagonal prism side-4smm and height 35mm. Draw the isometric projection of thecombination. (30 Marks)

or

1

or

3

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