# 2001

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```					             BOARD OF TECHNICAL EDUCATION
PORVORIM-GOA
November,2010 Examinations

Programme: Engineering & Technology

Subject: Engineering Drawing-I(2001)

Time Duration: 4 Hrs.                                    Max. Marks: 75
Instructions: 1) All Questions are compulsory.
2) Figures to the right indicate full marks.
3) Assume suitable additional data if required.

Q.No.I. Answer any five of the following:                                       5 x 3 = 15
a) Draw a regular pentagon given the length of side as 30mm.
b) Draw a figure to indicate the following types of lines (i) Hidden line
(ii) long break line (iii) cutting plane line.
c) Refer to fig.(A) and draw the front view and top view in first angle
method of projection.
d) Refer to fig.(B) and draw the missing view (Right hand side view).
e) Draw an isometric view of a tetrahedron of side 50mm.
f) Refer to fig.(C) and draw the auxillary view with reference to arrow
‘x’.
g) Draw a free-hand sketch of types of screws.

Q.No.II. Answer any two of the following:                               2 x 6 = 12
a) Draw the two parts of a hyperbda, when the distance between the
foci is 100mm and the vertices are 15mm from the foci.
b) Two points A and B are 100mm apart. Third point C is 75mm from
A and 50mm from point B. Draw an ellipse through A, B and C
and dimension the focal distances.
c) Draw an involute to a circle of diameter 50mm. Also draw a
tangent and normal to it, at any given point on it.

Q.No.III. Answer the following:                                                2 x 6 = 12
a) Refer to fig.(D) and draw the auxillary view (true shape in direction
of ‘x’).
b) Draw a neat proportional sketch of hexagonal headed bolt, nut
and washer as detail drawings. Assume D = 18mm.
OR
b) Draw free hand sketches of internal threading and woodruff key.

Q.No.IV. Refer to fig.(E) and draw the front view and top view in first angle       (12)
method of projection.

Q.No. V. Refer to fig.(F) and draw the Isometric View.                              (12)

Q.No.VI. Refer to fig.(G) and draw the front view, top view and left hand side      (12)
view in first angle method of projection.
………2/-

```
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