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Set 100: Engineering Drawing I Question Paper
Set 100: Engineering Drawing I
Course:Bachelor Of Science In Energy Engineering
Institution: Kenyatta University question papers
Exam Year:2010
DATE: Thursday, 25th November, 2010
TIME: 8.00 a.m. – 10.00 a.m.
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INSTRUCTIONS:
i)
This paper contains FIVE (5) questions.
ii)
You are required to answer THREE (3) questions only.
iii)
Question ONE is Compulsory.
iv)
Attempt any other TWO questions.
v)
Question ONE carries 30 marks and the others carry 20 marks each.
vi)
Construction lines should be faint and should not be erased.
vii)
All dimensions are in millimeters unless otherwise stated.
viii) Missing and mismatching dimensions, if any, may be suitably assumed.
SECTION A (COMPULSORY)
Question 1
A casting detail is shown by a pictorial view in Figure Q 1. Draw, to a suitable scale, the
following views in 3rd angle orthographic projection, with all hidden details except in end
view:
a)
A front elevation obtained by viewing the detail in the direction of arrow F.
(8 marks)
b)
A plan view projected from the front elevation.
(6 marks)
Page 1 of 7
c)
An end view (without hidden detail) obtained by viewing the detail in the
direction of arrow E
(6 marks)
d)
Insert four dimensions (a diameter, a radius, a short and a long length)
(2 marks)
e)
The projection symbol according to standard drawing conventions (2 marks)
f)
A suitable title block
(6 marks)
Question 2
a)
Fig. Q2 (a) shows two orthographic views, i.e. front view and plan, of a bracket
drawn in 3rd angle. Study the given views and construct using a suitable scale the
an oblique (Cavalier) drawing of the bracket with face “F” towards the front.
(9 marks)
b)
Fig. Q2 (b) views of a machined block drawn in 1st angle projection. Draw to a
suitable scale an isometric view of the block making corner A the lowest point.
(11 marks)
Question 3
Draw the graph and profile of a cam with the following specification:
Plate cam, rotating anticlockwise. Point follower. Least radius of cam, 30 mm.
Camshaft diameter, 20 mm.
0-90o, follower rises 20 mm with uniform velocity.
90o-150o, follower rises 30 mm with simple harmonic motion.
150o-210o, dwell period.
210o-270o, follower falls 20 mm with uniform acceleration.
270o-360o, follower falls 30 mm with uniform retardation.
(20 marks)
Question 4
a)
The views in Fig. Q4 (a) represent two discs which roll along AB. Both discs
start at the same point and roll in the same direction. Plot the curves for the
movement of points p and q and state the perpendicular height of p above AB
where q again coincides with the line AB.
(13 marks)
Page 2 of 7
b)
Fig. Q4 (b) shows a crank OA which revolves in clockwise direction around pivot
O. Link AB is pin – jointed at A and end B always slides along the horizontal
line CD. Plot the locus of point P on the line for one revolution of OA.
(7 marks)
Question 5
Sketch freehand the isometric blocks represented by the orthographic views in fig. Q 5
and draw the views missing in spaces shown. Show hidden detail where applicable.
(20 marks)
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