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CAMBRIDGE INTERNATIONAL EXAMINATIONS
General Certificate of Education Advanced Level
GEOMETRICAL AND MECHANICAL DRAWING
9351/1
PAPER 1
OCTOBER/NOVEMBER SESSION 2002
3 hours
Additional materials:
A2 Drawing paper (4 sheets)
Standard Drawing Equipment
TIME
3 hours
INSTRUCTIONS TO CANDIDATES
Print your name, Centre number and candidate number at the bottom right-hand corner of every sheet
of paper you use.
Answer all questions from Section I and any three questions from Section II.
Write or draw your answers on the separate drawing paper provided.
Work all your answers in SI units. Use both sides of the drawing paper.
All solutions are to be drawn full-size unless a contrary instruction is given. Construction lines must be
shown clearly.
If you use more than one sheet of paper, fasten the sheets together.
INFORMATION FOR CANDIDATES
The number of marks is given in brackets [ ] at the end of each question or part question.
The diagrams are not necessarily drawn to scale.
All dimensions are in millimetres unless otherwise stated.
You are reminded of the need for clear presentation in your answers.
This question paper consists of 10 printed pages and 2 blank pages.
MML 1293 3/01 S12780/3
© CIE 2002
http://www.xtremepapers.net
UNIVERSITY of CAMBRIDGE
Local Examinations Syndicate
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Section I (40 marks)
Answer all questions in this section.
1
The design of a logo for a record company is shown in the sketch Fig. 1.
The logo consists of:
●
a regular pentagon with each side 60 mm long and the base horizontal;
●
a regular octagon circumscribing the pentagon;
●
a square inscribed in the pentagon.
Construct an accurate full size view of the logo.
Fig. 1
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3
Orthographic views of a machine block are given in Fig. 2.
(a) Draw the given views full size.
[2]
(b) Project the auxiliary view of the block as seen in the direction of arrow AV.
[6]
(c) Determine, by an accurate method, the area of face F and print your answer under your
drawing.
[1]
60˚
30˚
45˚
50
AV
F
15
2
60˚
35
60
45
100
Fig. 2
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A thin metal plate is shown in Fig. 3. The plate is to be wrapped tightly round a 56 mm diameter
rod, indicated on the drawing by short chain lines, so that the two edges AB and CD touch each
other.
Draw, full size, a view of the plate after it has been formed to shape and the rod removed. Show
the edges AB and CD at the front of your drawing.
[10]
R44
30˚
A
C
B
D
Ø56
Fig. 3
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4
The plan of the base board of an electronics system is given in Fig. 4.
Draw the base board full size using geometrical constructions wherever necessary.
Note: Fig. 4 has not been drawn to scale;
Points A and B lie on the circumference of the circle centre O.
[13]
75
=
=
=
=
=
=
=
=
28
20
37
10
37
Ø56
A
B
R90
R120
SECTORS IN
THE RATIO OF
1:2:3:4:5
175
46
O
30
Ø64
10
10
Ø20
Ø30
42
45
27
45
150
Fig. 4
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Section II (60 marks)
Attempt no more than three questions from this section.
All questions carry equal marks.
5
Read all parts of the question before starting to draw.
Fig. 5 is a diagram of part of a printing machine.
(a) Draw the diagram full size.
[2]
(b) The mechanism consists of an arm AB which oscillates about the pivot O. There is a
roller-ended follower at the right hand end of AB. A cam is required to raise and lower
the roller-ended follower through an angle of 30°, as indicated, at uniform angular velocity
during one revolution of the cam. The cam is to revolve clockwise. Construct the outline of
the cam.
[10]
(c) The left hand side of the mechanism consists of three rods BC, CD and DE, pin jointed at B,
C and D. CD is constrained to move vertically while E moves horizontally along the line EF.
[8]
Plot the locus of P, the mid point of DE as B oscillates from B to B1.
80
88
B
A1
BO = 125
BC = 80
CD = 65
DE = 60
PIVOT
O
15˚
15˚
A
B1
C
D
ROLLER-ENDED
FOLLOWER Ø24
BASE CIRCLE
Ø60
P
F
E
10
Fig. 5
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7
Part of a sheet metal ornamental garden feature is shown in the incomplete orthographic views,
Fig. 6. The feature consists of a truncated right hexagonal pyramid intersected by a cylinder.
The pyramid is open at the top and the base.
(a) Draw the given figure to a scale of 1:10. Do not include hidden detail.
[3]
(b) Complete the plan view by showing face D as hidden detail.
[2]
(c) Construct the development of the truncated pyramid.
[5]
(d) Construct the true shape of a cap to cover the end C.
[3]
(e) Complete view SV showing the line of intersection between the cylinder and pyramid.
Ignore the thickness of the metal.
[7]
900
600
300
15˚
800
C
15˚
Ø40
6
D
VIEW SV
1020
Fig. 6
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7
Orthographic views of a bracket are given in Fig. 7.
Construct an isometric view of the bracket with corner A to the front.
Do not use the isometric scale.
[20]
10
30
R28
A
28
28
25
10
110
45˚
R80
10
R30
20
R30
10
15
R20
A
12
86
Fig. 7
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Fig. 8 shows a framework carrying two loads. The framework is supported by a hinge at the left
hand end and a cable passing over a pulley at the right hand end.
(a) Draw the framework to a scale of 10 mm to 1 m and use Bow’s notation to identify the
members.
[4]
(b) Determine the magnitude and direction of the reactions at the two ends of the framework. [7]
(c) Determine the magnitude and nature of the forces in the three members of the frame
indicated with *. Do not tabulate the forces for the whole structure.
[9]
Give your answers to parts (b) and (c) tabulated clearly under your drawing.
PULLEY
Ø1
CABLE
4
8
6
45˚
2
45˚
6
45˚
45˚
30˚
400 kN
900 kN
ALL DIMENSIONS IN METRES
Fig. 8
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Read all parts of the question before starting to draw.
Fig. 9 shows a pivot.
The upper part of the pivot is a cone with a flat face F parallel with the generator of the cone as
shown. The lower part of the pivot T has a square thread throughout its length.
The dimensions of the thread are:
●
major diameter
80 mm;
●
minor diameter
50 mm;
●
pitch
30 mm.
(a) Draw the given view full size.
[1]
(b) Complete the lower part of the pivot by drawing the square thread.
[10]
(c) Construct the view of the face F as seen in the direction of arrow AV.
[8]
(d) Print the geometrical name of the face F under your drawing.
[1]
60˚
AV
30
46
SPHERICAL
RECESS
R40
FACE F
C
30˚
30
9
T
70
Ø80
Ø180
Fig. 9
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