NOTE:
1. (a) There are SEVEN questions in all and these are arranged in three Sections A, B
and C.
(b) Sections A and B are compulsory and carry 20 marks and 32 marks respectively.
(c) Out of remaining 5 questions (of 16 marks each) in Section C students are
required to answer any 3 questions.
2. Detach this sheet from the question paper and write answers on this sheet only
on Pages 1 & 2. Attach it to the main drawing sheet. Remaining questions are to
be answered on the main drawing sheet.
3. All dimensions given are in mm. Use suitable values of any missing and
mismatching dimensions.
4.
Use BIS Code: SP: 46-1988 for all drawings and do not rub off construction
lines.
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Note : - Answer this on question paper itself and annex with the
drawing sheet.
Q1. Choose the correct or best alternative in the following: (2 x 10 = 20)
QUESTIONS ANSWER HERE
a In ___________ the portion of the object between cutting plane and the observer is assumed to be removed
(A) plan
(B) elevation
(C) profile view
(D) sectional view ______________
b When the measurements are made in two units ________ scales are used
(A) diagonal
(B) plain
(C) vernier
(D) comparative ______________
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c If both plan and elevation of an object lies below X-Y line, then the object is in ______ quadrant
(A) I
(B) II
(C) III
(D) IV ______________
d The traces of planes are ___________
(A) points
(B) lines
(C) planes
(D) none ______________
e Parallel line method is used for developing ___________
(A) cones (B) pyramids
(C) prisms (D) spheres _____________
f Line of intersection between a square pyramid and a pentagonal prism consists of ________
(A) curved lines only
(B) straight lines only
(C) combination of both curved and straight lines
(D) depends on position and size ______________
g A sunk taper key is having ___________ surface tapered
(A) top
(B) bottom
(C) side
(D) all ______________
h __________________ is a cylindrical rod threaded at both the ends and left plain in the middle.
(A) bolt
(B) nut
(C) stud
(D) washer ______________
i The other name for Hooke’s joint is __________
(A) Oldhams coupling
(B) Universal coupling
(C) Compression coupling
(D) Claw coupling ______________
j __________ is a curve traced by a point in a straight line which rolls without slipping along a polygon.
(A) cycloid
(B) epicycloids
(C) hypocycloid
(D) involute ______________
Q.2 Fig. 1 shows the details of a knuckle joint. Draw the following views of the assembly to half the full size:
(i) Front view top half in section
(ii) Side view from right side (20+12 = 32)
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SECTION C
Answer any THREE Questions. Each question carries 16 marks.
Q.3 A straight line AB, 95 mm long has its end A 15 mm above HP and 10 mm infront of VP. The other end B is 65 mm above HP and 75 mm infront of VP. Draw the projections of the line. Also show the HT and VT of the line. (16)
Q.4 Construct a diagonal scale of 1:50, to show metres, decimetres and centimetres and long enough to measure upto 6 metres. Also indicate on this scale a distance of 4 m, 6 dm and 5 cm. (16)
Q.5 A sphere of 60 mm diameter is placed centrally on the top of a frustum of a square pyramid. The base of the frustum is square of 60 mm side, top surface is square of 40 mm side and height of the frustum is 50 mm. Draw the isometric projection of the combined solid. (16)
Q.6 Construct the curve generated by a point on a straight line which rolls without slipping along a circle of diameter 60 mm. Draw a tangent and normal at any point on the generated curve. (16)
Q.7 a. Draw a hexagonal headed bolt. Take the nominal diameter as 24 mm and shank length 100 mm. (4)
b. Draw the following rivet heads taking the nominal diameter 24 mm. Give dimensions:
(i) Snap head (ii) Pan head (6)
c. Show the schematic representation of the following:
(i) Basic Size (ii) Maximum size
(iii) Minimum size (iv) Upper deviation
(v) Lower deviation (vi) Tolerance (6)