4057Q1 SPECIMEN TECHNICAL GRAPHICS AND DESIGN

Extracted Content: 4057Q1 SPECIMEN TECHNICAL GRAPHICS AND DESIGN

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ZIMBABWE SCHOOL EXAMINATIONS COUNCIL General Certificate of Education Ordinary Level

TECHNICAL GRAPHICS AND DESIGN 4057/1
PAPER 1 Graphic Communication and Geometrical Drawing

SPECIMEN 3 hours

©ZIMSEC Specimen paper

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Centre Number ......... cece cece ec cec eee e eee eee ee eeneeeeseeeeeneen een ene
Candidate Number ............ 00... ccecceeeeeeeeeceeeeeeeeueeeeeeeeeeaeeeeeees

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ZIMBABWE SCHOOL EXAMINATIONS COUNCIL
General Certificate of Education Ordinary Level

TECHNICAL GRAPHICS AND DESIGN 4057/1
PAPER 1 Graphic Communication and Geometrical Drawing

SPECIMEN 3 hours

©ZIMSEC Specimen paper

Instructions to candidates

Print your sumame, other names, Centre number and candidate number in the spaces provided.
Answer questions in the spaces provided.

All answers should be drawn accurately with instruments unless otherwise stated.

Colour should only be used if asked for in the question.

The number of marks available is shown in the brackets [ ]. Drawing aids may be used.

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Section A
Answer all questions in this section.

The symbol @ in Technical Graphics and Design stands for

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Table 2 below shows the number of hours that learners from different departments

spend in the library. Draw a bar graph to represent the information.

Table 2

[8]

Department

Hours/week per learner

Technical Graphics and Design

10

Agriculture

Physical Education

Metal Technology & Design

Wood Technology & Design

Building Technology and Design

wo; col Sy BP) Om

4057/1 SPECIMEN PAPER

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Figure 3 shows the side view of a solid truncated right cone. The faces A and B are to be covered with decorative material. Draw, the true shape of the decorative material before it is fixed onto the faces. [6]

Fig. 3

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Figure 4 shows the outline of an irregular piece of land. A pool of square section is to be constructed with an area equal to it. Show the construction and state the length of one side of the pool. [10]

Fig. 4

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Figure 5 shows a plan and an incomplete elevation of a flag pole supported

by 5 equispaced ropes to form a regular pentagon on the ground. To a scale of
1:100:

(a) Draw, the plan and elevation,
(b) Determine the true length of each rope.

-~

g
a

Fig. 5

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A point P, in Figure 6, moves from A to B at a uniform speed whilst at the same time A revolves about fixed point B at a uniform speed. As A moves through 180°, point P moves from A to B. Point P returns to the starting position through the remaining 180°. Trace the locus of P for one revolution of AB. [8]

Fig. 6

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Section B

Answer four questions in this section, at least one question from each option.

OPTION 1

The process for preparing instant oats is given below:
Empty the contents into a bowl.

Add boiling water.

Stir rapidly for 3 minutes.

Add some milk.

With the aid of simple diagrams and brief notes, draw, a flow chart showing
the preparation.

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8 A petrol station manager has asked for a petrol station sign. Figure 8(a) is suggestion for the sign, but the manager does not like it. Make three possible designs in the spaces provided in Figure 8(b). Select one which you think is the most suitable and make an accurate drawing of it with the aid of instruments in the rectangle at the bottom.

Use colour in shading to enhance your design.

POSSIBLE SOLUTIONS 6 PETROL
Fig. 8(a)
Fig. 8(b)

FINAL
SOLUTION

Fig. 8

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OPTION 2

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9 Figure 8 shows a section across a dam wall. The top end is based on a semi-ellipse
that is truncated horizontally. The left side is tangential to the ellipse at point T,
while the right bottom is parabolic.

To a scale of 1:100, draw, the profile of the dam wall showing all the necessary
constructions.

Measure and state the span ‘AB’ of the bottom of the wall.

[15]
fw
oo TRS ry
so HN ~
pointT _, 2 i N R500 4
58
i I :
a 8
| i “ a
TANGENT ee a Sn J
Minor axis | &
l PARABOLIC
¥
A B
3000
SPAN AB.
Fig. 9
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10 Figure 10 shows two gear wheels in mesh with two arms PQ and PR pivoted at Q

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and R. The gears rotate in opposite directions about O1 and O2. Starting from
the position shown, draw, the complete locus traced by point P as the gear wheels

make one revolution.

[15]
Gear wheels
Q75
Fig. 10
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OPTION 3

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11 Figure 11 shows the plan and elevation of a cast iron block in first angle projection.

Project an auxiliary elevation in the direction of arrow A.

La) pp

Fig 11

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12. Figure 12 shows an incomplete view of cylinder intersecting with a cone.

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Draw the following:
(a) Complete plan,
(b) Show the curve of intersection on the elevation,

(c) Draw the development of the cone.

Fig. 12

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