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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER I/II • EXAMINATION SUMMER- 2017
Subject Code: 310029 Date: 05 06- 2017
Subject Name: Engineering Drawing
Time: 10:30 AM TO 01:30 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Each question carry equal marks (14 marks)
Q.1

Construct an ellipse by concentric circle method having Major axis 80 mm and Minor axis 50 mm
07





A thin metallic pentagonal plate of 30 mm side having one of its side on the HP and is inclined at 30 to HP and side on which it rest makes an angle of 45 to VP. Draw its projections.
07



Q.2

Draw an involute of a circle having diameter of 30mm
07





Construct a Pentagon by three circle method.
07



OR

The Top view and Front view of a line AB 100 mm long measures 75 mm and 85 mm respectively. The end A is 10 mm below HP and 20 mm Behind VP Draw its Projections and find inclination of line with HP and VP.
07

A

Q.3

A pictorial view of an object is shown in Fig. 1. Draw to full size it's
Following views using 'First Angle projection method',
Elevation- looking from direction
Top view
Left hand side view
Give dimensions using unidirectional system.
07




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A circular plate of 60 mm Diameter inclined 45 to VP and parallel to HP. Draw Projection.
07

VP HP

OR
Q.3

Draw the following views for Fig-2, Bottom view Rear view
07





Fig-3 shows two views of an object draw its Isometric Projection.
07



Q.4

With the help of neat sketches differentiate between 'Alinged system' and
'Unidirectional system of dimensioning'.
07





Draw freehand neat proportional sketch of following.
Snap headed rivet Wood ruff key Spring washer Eye bolt
07




OR
Q.4

State the use of tracing. Also state the care to be taken while tracing.
07





List the instruments and materials used for Drawing
07



Q.5

Draw Cycloid for a Circle of 60 mm diameter taking Starting Point at the top of a vertical diameter.
07


P


The distance between vertex and focus of conic curve is 30 mm. Draw Parabola.
07



OR
Q.5

Two straight lines and are at angle of 75 to each other. A point is at a distance of 30 mm from both these straight lines. Draw a Hyperbola
passing through the point
07


OX OY
P


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Explain following with the help of neat sketches
Chain Dimensioning, Parallel Dimensioning
Co-ordinate Dimensioning.
07




Figure: 1
Figure: 2
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Figure: 3