Rajiv Gandhi Proudyogiki Vishwavidyalaya 2008 B.E - Engineering Drawing - Question Paper

BE (First/Second) Semester examination
(Common to all Branches)
Time: three hrs
Maximum Marks: 100
Minimum Marks: 35

Note: (i) Attempt 5 questions, selecting 1 ques. from every unit.
(ii) Suitably presume any missing data.
(iii) Use half imperial size drawing sheet.
(iv) Due credits will be provided for neatness, quality of lines and lettering.

Unit-I
1. a) A rectangular plot of land measuring 1.28 hectares is represented on a map by a similar rectangle of eight sq. cm. compute R.F. of the scale of the map. Draw a diagonal scale to learn one m and long enough to measure 600 m. Show a distance of 438 m on it. eight marks
Ans: Refer issue 4.19 Page 4.14 of ED - Basant Agrawal, TMH.
1. b) A circle of 40 mm diameter rolls along a line for 1 revolution clockwise. Draw and name the locus of a point on the circle which is in contact with the line. eight marks
Ans: Refer issue 6.1 Page 6.1 of ED - Basant Agrawal, TMH.
OR
2. a) Using the scale of chords, construct angles of 45 degree and 125 degree. eight marks
Ans: Refer issue 4.30 Page 4.23 of ED - Basant Agrawal, TMH.
2. a) Construct a parabola with base 60 mm and length of axis 40 mm. Draw a tangent to the curve at a point 20 mm from the base. eight marks
Ans: Use tangent method (problem 5.16 of ED - Basant Agrawal, TMH)
or Use rectangle method (problem 5.17 of ED - Basant Agrawal, TMH)

Unit-II
3. a) The pictorial view of a block is provided in fig. 1. Draw the front view, the side view and the top view looking from the direction A, B and C in 1st angle projection. eight marks
Ans:
3. b) The length of top view of a line parallel to the V.P. and inclined at 45 degree to the H.P. is 50 mm. 1 end of the line is 12 mm above the H.P. and 25 mm in front of the V.P. Draw the projections of the line and determine its actual length. eight marks
Ans: Refer issue 9.10 Page 9.11 of ED - Basant Agrawal, TMH.
OR
4. A line AB has its ends A and B 20 mm and 45 mm in front of V.P. respectively. The end projectors of the line are 50 mm apart. The H.T. of the line is 10 mm in front of the V.P. The line is inclined at 35º to H.P. Draw the projections of the line and determine the actual length of line and locate its V.T. of the line from H.P. and inclination of the line with V.P. 16 marks
Ans:

Unit-III
5. a) A regular hexagonal lamina of 40 mm sides has a square hole of 25 mm side centrally cut through it. Draw the projections when it is resting on 1 of its sides on H.P. with its surfaces inclined at 60º to V.P. and its corner closest to the V.P. is 24 mm from the V.P. eight marks
Ans:
5. b) Draw the projections of a pentagonal prism base 25 mm side and axis 50 mm long, resting on 1 of its rectangular faces on the H.P. with the axis inclined at 45 degree to the V.P. eight marks
Ans: Refer issue 11.17 Page 11.20 of ED - Basant Agrawal, TMH.
OR
6. a) A thin 30-60 degree set square has its longest edge in the V.P. and inclined at 30º to the H.P. Its surface makes an angle of 45 degree with the V.P. Draw its projections. eight marks
Ans:
6. b) A hexagonal pyramid base 25 mm side and axis 55 mm long has 1 of its slant edges on the ground. A plane containing that edge and the axis is perpendicular to the H.P. and inclined at 45º to the V.P. Draw its projections when the apex is nearer the V.P. than the base. eight marks
Ans: Refer issue 11.38 Page 11.40 of ED - Basant Agrawal, TMH.

Unit-IV
7. a) A pentagonal pyramid side of base 35 mm and axis 60 mm long rests with its base on H.P. such that 1 of the edges of the base is perpendicular to V.P. A part plane perpendicular to H.P. and parallel to V.P. cuts the pyramid at a distance of 20 mm from the corner of the base nearer to the observer. Draw its top and sectional front view. eight marks
Ans: Refer issue 12.20 Page 12.22 of ED - Basant Agrawal, TMH.
7. b) A cone of base 50 mm diameter and 65 mm height rests with with its base in H.P. A part plane perpendicular to V.P. and inclined at 30º to H.P. bisects the cone. Draw the development of the lateral surface of the truncated cone. eight marks
Ans: Refer issue 13.7 Page 13.7 of ED - Basant Agrawal, TMH.
OR
8. a) A cube of 50 mm side rests with 1 of its edges on H.P. such that the square faces containing that edge are making equal inclination with H.P. A horizontal part plane cuts the cube at a distance 18 mm beneath the horizontal edge nearer to the observer. Draw the sectional top view and front view of the cube. eight marks
Ans:
8. b) The front and side views of an I beam are shown in fig. 2. Draw the isometric view of the beam. eight marks
Ans:

Unit-V
9. a) What is CAD? elaborate the main benefits of it? six marks
Ans: Refer Page 18.1 of ED - Basant Agrawal, TMH.
9. b) State and discuss any 5 significant EDIT commands used in CAD software. 10 marks
Ans: Refer Page 18.26 of ED - Basant Agrawal, TMH.
OR
10. Fill in the blanks: 16 marks
a) According to AutoCAD, an engineering drawing is considered to be made up of various drawing elements known as entities.
b) Graphics can be converted into hard copy with a Print.
c) AutoCAD settings are called default settings.
d) Size of Electronic Drawing Sheet can be changed to any value by setting Limits and Units.
e) Ortho command allows you to draw lines at right angles only.
f) Grid command is used to display dotted lines on the screen at predefined spacing.
g) Save/Qsave command saves the work.

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