6027q1 Specimen paper

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Candidate Name Centre Number Candidate Number

ZIMBABWE SCHOOL EXAMINATIONS COUNCIL

General Certificate of Education Ordinary Level

WOOD TECHNOLOGY 6027/1

Paper 1 Theory,

SPECIMEN PAPER 3 hours
Additional materials:
Answer sheet
Coloured crayons
Drawing paper (A 2)
Metric scale rule, scale of 1:1and 1:5
Standard drawing equipment

TIME 3 hours
INSTRUCTIONS TO CANDIDATES

Write your name, Centre number and candidate number in the spaces at the top of this page

and on all separate answer paper used.

Section A Theory

Answer all questions. FOR EXAMINER’S USE
Write your answers in the spaces provided on the question paper.

A
Section B Graphics and Design

Compulsory question. BS
Write your answers on the separate A 2 drawing answer paper
provided. C6

Section C Calculations

Answer one question only use A2 drawing paper provided.

At the end of the examination, fasten the separate answer paper
and drawing paper securely to the question paper.

C7

INFORMATION FOR CANDIDATES

Marks is given in brackets [ ] at the end of each question or
part question.

Y ou are advised to spend no longer than 30 minutes on
Section A, 1 hour 50 minutes on Section B and 40 minutes on Section C.

This question paper consists of 9 printed pages and 3 blank pages.
Copyright: Zimbabwe School Examinations Council, Specimen paper.

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SECTION A (20 marks) Answer all questions in this section in the spaces provided. You are advised to spend not more than 20 minutes on this section.

For each of the following materials explain in detail why it is suitable for

the product. In your answer consider its mechanical properties and aesthetics.

a)
material product
formica Kitchen work surface
mahogany In-door coffee table
(i) Formica
[4]
(ii) Mahogany
[4]
b) State two advantages of manufactured boards over natural wood.
@
[1]
(ii)
[1]

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a) Identify any wood waste product. For Examiner's Use [1] b) For the wood waste product identified in (a), explain in detail how

you would convert the waste into a useful product.

[6]

c) List the three risk management steps that would apply throughout
production.

The steps do not need to be in order.
@
(ii)
(iii) [3]

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Explain how the school chair in Fig. 1 (a) and (b) below has been designed to be suitable for use in the classroom.

(a)

(b)

(a) (b)
Fig. 1
What is CAD?
(1]

Explain in detail how 3D CAD software has been used to improve
each of the following areas of product design:
@ concept development,

- i

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(ii) communication within the design team and, For Examiner's Use

(iii) ~~ Pre-production testing.

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SECTION B Answer all questions on A2 plain paper provided You are advised to spend not more than 1 hour 50 minutes on this section.

A student at a college is wheelchair bound. He wants to use textbooks in the
Library from higher shelves. The books have different sizes.

(a) Design an artefact that can help the student to have access to textbooks

from higher shelves while on the wheelchair. 8]
(b) State any 3 factors that are important for the design of the artefact. 3]
(c) @ Illustrate a mechanism that would allow the unit to be extended
to reach different levels of shelves. 4]
(¢1)) Sketch a mechanism to bring down the books safely. 4]
d) Choose one component of the unit and show how it is manufactured. 5]
e) Sketch the front elevation and sectional end elevation of the artefact
include important dimensions. [10]
f) Draw up a cutting list of the finished sizes of the major components. [4]
g) Name a material to be used on your artefact and justify your answer. [2]

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SECTION C Answer one question only from this section.

You are advised to spend not more than 40 minutes on this section.

The drawing in Fig. 2 below shows a stool made of pine.

LEGS 40 X 40 mm
RAILS 40 X 20 mm

Fig. 2

Prices of materials
Pine $ 294.00/m3
Blockboard $ 45.00/board (2440 x 1220 x 19mm)

Clear varnish $ 41.60/5 litres

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a)

b)

5)

a)

(iii)

Calculate the amount of timber required in cubic metres for the stool
under frame using rough sawn measurements.

Calculate the cost of timber used to produce the underframe including
the seat.

Calculate the cost of varnish assuming 517 ml of varnish were used.

Assuming the labour is calculated at 45% of the total cost of materials
including sundries of $5.15, calculate the cost of the stool.

@ What would be the mechanical advantage if 100 N is needed
to lift a load of 400N.

(¢1)) What is the velocity ratio (VR) of the beam given in Fig. 3.
EFFORT

Fig. 3

A simply supported beam with a point load of 16 KN is illustrated in
Fig. 4 below. Find R, and Rp supported reactions.

LOAD 16 kN
le 4.5 >|
Ri Rr
3m 5m
IK > >|
Fig. 4

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[2]

[6]

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(a) Calculate the prices of the following:

@ 162 handles at $252.00 each, 2]
(¢1)) 750ml of thinners at $15.50 per litre, 2]
(ii) ~—-:16.5g of glue at $11.64 per kg, 2]
(iv) 65 door catches at $25.00 per 100, 2]
(vy) 5 litres of turpentine at $ 9.25 per 750ml, 2]
(vi) A house contains forty-eight 50 x225mm softwood joists

4,50m long.

How many cubic metres are required? [2]

(b) (i) The horizontal cross-section of a 2.400m high column is shown
in Fig. 5 below differencing volume of concrete would be
required to cast it? [5]

g ‘200mm
$ |
600 mm
Fig. 5
(¢1)) The beam shown in Fig. 6 is in equilibrium
Calculate the reactions at A and B. 13]
2m lm 3m
600 N 450 N

La
Fig. 6

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