ISC Class XII Exam Question Papers 2012: Geometrical and Mechanical Drawing

They must NOT start writing during this time.)

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 The intended marks for questions or parts of questions are given in brackets [ ].

A sheet of drawing paper size A2 (594 mmx 420 mm) is provided.

All dimensions are in millimetres.

Arcs of circles less than 4 mm radius may be drawn freehand

All construction lines must be shown clearly.

Accuracy and good draughtsmanship are essential

Letter your name and index number at the bottom right-hand corner of your paper in a title block 120 mm x 50 mm.

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Answer all Questions

Question 1    [35]

Draw the three views of the given object (Figure 1) in correct projection.

First of Third Angle:

(a) Front elevation in the direction of the arrow. (b) The end elevation (side view). (c) The plan (top view).

(d) Symbol of the method of projection you have chosen.

Question 2        [65]

Figure 2 attached, shows the details of a split muff coupling components which transmits power from one shaft to the other. Assemble the parts as follows:

 Two shafts (part ( ) are connected by using a split muff coupling (part 30 made of upper half

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