BECE 2015: Chief Examiner's Report for Pre-Technical Skills
GENERAL COMMENTS
The standard of the paper compared favourably with that of
previous years and it was within the scope of the syllabus.
2. A SUMMARY OF CANDIDATES’ STRENGTHS
Most candidates showed strengths in:
(i)
Good
draughtsmanship;
(ii)
Production
of neat and clear sketches;
(iii)
Provision
of concise and straight to the point responses to questions; (iv) Adherence to the rubrics of the
examination;
(v) Efficient
use of the time allotted for the paper.
3. A SUMMARY OF CANDIDATES’ WEAKNESSES
Candidates demonstrated weakness in:
(i)
Their
poor and illegible handwritings;
(ii)
Their
inability to read and understand the questions and the poor command of the
English Language;
(iii)
Inability
to understand and use technical jargons. (iv) Inadequate
knowledge in workshop processes.
4. SUGGESTED REMEDIES
To
minimize candidates’ weaknesses:
(i)
Candidates
should be encouraged to read wide to improve upon their English Language usage;
(ii)
Teachers
should endeavor to teach students workshop processes through practical lessons;
(iii)
Teachers
should as much as possible use technical terms and jargons in their teachings
and encourage candidates to use them.
5. DETAILED COMMENTS
QUESTION 1
(a)
State one reason why a dressmaker
would use a double stitch for fastening on a stitch instead of a knot.
(b)
List two suitable methods each of
preserving the following food items: (i) plantain; (ii) mango.
(c)
(i) Copy
and complete the table below by providing one suitable instrument for carrying
out each of the operations listed:
OPERATION
|
ONE
SUITABLE INSTRUMENT
|
Drawing
a horizontal line
|
|
Drawing
a circle
|
|
Measuring
an angle
|
(ii)
Sketch the following geometrical
solids:
(α) cylinder
(β) cone
(d)
(i) What
is an exhibition?
(ii)
Give two reasons why artworks are
exhibited.
(iii)
List two types of exhibitions.
(iv)
State one major difference between
the two types of exhibitions listed.
(a) Most
of the candidates were able to answer the question very well. However, a few candidates did not understand
the terms “double stitch” and “knot” and therefore gave wrong answers.
(b)&(c) Majority of the candidates who attempted this question performed
very well.
(d) Most
of the candidates were able to explain the term exhibition and gave reasons why
artworks are exhibited and listed two types of exhibitions. Majority however, could not state the major
difference between the two types of exhibitions.
Required answer is:
General exhibition deals with all kinds of products, whiles
specialized exhibition deals with a particular product.
QUESTION 2
(a)
Figure 1 shows the isometric view of
a wooden stand.
(i)
Draw full size the front view in the
direction of arrow Z.
(ii)
State the most suitable abrasive
that can be applied on the work.
(b)
State one method of preventing
pinning in files.
(c)
(i) Make
a freehand pictorial sketch of the wooden float.
(ii)
Label any two parts of the tool
sketched in (c)(i). (iii) State one
use of the wooden float.
(d)
(i) State
one way of preventing accidents in the workshop.
(ii)
State two qualities of a good
mortar.
(iii)
Explain the ratio 1:6 in a mortar
mix.
(a)
Majority
of candidates understood the question and drew the front view correctly and
stated the most suitable abrasive. A few
however reproduced the figure as solution.
(b)
Most
of the candidates could not answer this question. They did not know what pinning is and
therefore did not know how to prevent it.
To prevent pinning in files, rub chalk on the surface of the file.
(c)
This
question was very popular among candidates.
Most candidates sketched the float and labelled the parts. A few candidates however could not label it.
(d)
This
question was also very popular among the candidates. Very good answers were produced by the
candidates who attempted it.
QUESTION 3
(a)
(i) Make
a freehand pictorial sketch of a flat chisel.
(ii)
State one use of the flat chisel.
(iii)
State one method of maintaining the
flat chisel.
(b)
Figure 2 shows the sketch of a type
of sheet metal joint.
(i)
State the name of the joint.
(ii)
List one tool for cutting the sheet
metal.
(iv) State one article that can be made with
the joint.
(c)
Copy and complete the table below:
Name
of tool
|
State one part of the tool
|
One
use of the tool
|
(i) Hacksaw
|
||
(ii) Soldering Iron
|
||
(iii)
Mortise chisel
|
(d)
State one reason each of the
following operations: (i) glasspapering
a piece of work made from wood; (ii) mixing
turpentine with oil paint.
(a)
Majority
of candidates could not sketch the flat chisel correctly. Most of them sketched the firmer chisel which
is a woodwork chisel and therefore could not state the correct use and method
of maintaining the flat chisel.
(b)
Very
few candidates were able to answer this question correctly. Most of the candidates could not give the
correct name of the joint; the tool for cutting the sheet metal and the use of
the article.
The required answers are:
the name of the joint is grooved lap joint; the tools for cutting sheet
metal include shears/snips, flat chisel, sheet saw, and junior hacksaw.
The uses of the article include: milo tin, bucket, metal
trunk, dustbin, etc.
(c)&(d) Majority of candidates were able to answer these questions
very well.
QUESTION 4
(a) (i) Make a freehand pictorial sketch of a
marking knife.
(ii)
State one use of the marking knife.
(iii)
State one method of maintaining the
marking knife
(c) Copy
and complete the table below:
Name
of Material
|
One property each
|
One
use each
|
(i) Wawa
|
||
(ii) Polyvinyl Chloride (PVC)
|
||
(iii) Clay
|
Figure 3 shows a sketch of a
sandcrete block.
(i)
State the parts labelled P and Q.
(ii)
List two materials used for making
the block.
(iii)
Re-arrange the following procedures
for moulding the block in their correct order:
1.
tamp and use a wooden batten to
strip off the excess mortar;
2.
batch sand and cement and mix
thoroughly.
3.
remove and dry blocks.
4.
fill the mould box with mortar.
5.
add water and mix mortar.
6.
assemble the mould box and clean the
internal surface.
(a)
Majority
of candidates were not able to distinguish between the marking knife and a
kitchen knife. Majority sketched the
kitchen knife and stated its uses at home. A few however sketched the marking
knife and stated its use.
(b)
Most
candidates copied the table but could not
complete some portions correctly, especially the properties of the
materials. A few were however able to
complete it.
A very popular question
among candidates. Most candidates were
able to state the parts labelled and the materials for making the block. Majority of them were also able to re-arrange
the procedure for moulding block corre.
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