9012 Maharashtra State Board of Technical Education

SAMPLE THEORY QUESTION PAPER OF ENGINEERING DRAWING:
9012
Exam Seat No.
Maharashtra State Board of Technical Education
Course: Mechanical Engineering Group & Plastic Engg. Course Code: ME/PT/PG/AE/MH/FE/PS
Semester: Second
Subject : Engineering Drawing
Subject Code: 9012
Duration : 4 Hours
Marks : 80
Instructions:
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All questions are compulsory.
Use only H / 2H grade pencils.
Line work and cleanliness will be given due weightage.
Retain all construction lines and nomenclature.
Use A2 size drawing sheets as answ er paper.
Assume suitable data if necessary.
Q1] a) Attempt an any y one of the following:
i)
ii)
A right circular cone of base diameter 70 mm and axis 90 mm long
Is standing on its base on H.P. It is cut by a section plane inclined at
600 to H.P. and perpendicular to V.P. bisecting the axis. Draw the
development of lateral surface of the truncated cone. Refer Fig. 1
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Draw the development of lateral surface of the cylinder standing on 08 MARKS
its base on H.P., which is cut by a section plane inclined at 45O to H.P.
and perpendicular to V.P. passing through a point on the axis 35 mm
from the top face. Refer figure 2.
1
2
b) Draw the free hand sketches of an any y f four our of the following:
(i) Unified threads (ii) Eye foundation bolt
(iii) Hexagonal headed bolt (iv) Collared stud
(v) Single rivetted lap joint (vi) Locking by pin
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Q2] a) Figure 3 shows plan and elevation of a bearing bracket. Draw the left
end view of the object. Use first angle method of projection.
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b) Attempt any one of the following:
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i)
Draw the projections of a hexagonal pyramid of side of base 30mm
and axis 80 mm long, if it is resting on a side of base on H.P. such
that its axis is inclined to 600 to H.P. and parallel to V.P.
ii) Draw the projections of a cone of base diameter 50mm and axis 75mm
long. It is kept in the first quadrant such that its axis is inclined at 300 to
V.P. and parallel to H.P. The apex is towards the observer.
Q3] a) Attempt any two of the following:
i)
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A hexahedron of side 50mm side is resting on its base on H.P. with all
sides of base equally inclined to V.P. It is cut by a section plane
perpendicular to V.P. and inclined to H.P. such that the true shape
of the section is a regular hexagon. Draw:
3
1) Front view
2) Sectional top view
3) True shape of the section
ii)
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A right circular cone of 50 mm base diameter and axis 80mm long is
resting on its base on H.P. It is cut by a section plane inclined at 600 to
H.P. and perpendicular to V.P. bisecting the axis. Draw:
1) Front view
2) Sectional top view
3) True shape of section
iii)
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A pentagonal prism of base side 30 mm and axis 100 mm long is resting
on its longer edge on H.P. with its axis parallel to V.P. It is cut by a plane
inclined at 400 to V.P. and perpendicular to H.P. passing through a point
35 mm from the left face. Draw:
1) Plan
2) Sectional elevation
3) True shape of section
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Q4] Orthographic front view and top view are shown in figure 4. Draw its
isometric view.
Also construct required isometric scale for above problem.
4
14 Marks
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Q5] A pictorial view of an object is as shown in Fgure 5. Draw the following view:
i) Sectional front view, section along A-A
ii) Plan
iii) Side view from left
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Use first angle method of projection
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