BECE 2016 Basic Design And Technology (Pre Technical Skills ) Past Question Paper Two
(a) List four stitches that can be used for neatening as well as embroidery work.
(b) List four dishes which are easily contaminated
(c) (i) List three sources where information can be obtained to solve design problems
(ii) List two methods of drawing objects in pictorial views.
(iii) List two causes of weaknesses in wooden chairs.
(d) (i) State one use of each of the elements listed below in a design
1. Shape:
2. Colour
3. Space:
4. Texture:
(ii) Explain what a sketch is.
(iii) State one reason why it is necessary to use a sketch when producing an object
(a) List four stitches that can be used for neatening as well as embroidery work.
Loop / blanket stitches
Herringbone stitches
Buttonhole stitches
Machine stitches
Back stitches
Overcasting
Crotcheting
(b) List four dishes which are easily contaminated
Sauces
Gravies
Bread pudding
Vegetable turnovers
Soups
Meat turnovers
Fish turnovers
Milk dishes
Vegetable salad
Fruits salad
NB: any other protein food accepted
(c) (i) List three sources where information can be obtained to solve design problems
Books and magazines
Existing structre
videos / films
Questionnaire
Interview
Existing artefacts
(ii) List two methods of drawing objects in pictorial views.
Oblique drawing
Isometric drawing
Perspective drawing
(iii) List two causes of weaknesses in wooden chairs.
Use of unseasoned timber / defective timber
Poor joints
Poor construction (eg, missing nail, poor gluing, broken tongue)
Improper use of the chair
Over usage / old age
(d) (i) State one use of each of the elements listed below in a design
1. Shape: Used to create composition
2. Colour: Used for drawing and painting for beautification / code
/ identification
3. Space: Used in drawing and creating composition
4. Texture: Used to show the smoothness or roughness of an artwork/ appearance
(ii) Explain what a sketch is.
A sketch is a drawing mostly done quickly showing only essential details.
A quick drawing of an object or idea
(iii) State one reason why it is necessary to use a sketch when producing an object
For planning
To avoid waste
For selection
It saves time spent on the work
It gives an overview of the end product
Figure 1 shows the front elevation and plan of an object made from a mild steel sheet.
(a) Draw full size the following views:
(i) front view;
(ii) plan.
(iii) surface development
(b) (i) State the name of the object shown in Figure 1
(ii) List two tools used for cutting the mild steel sheet.
(c) (i) Make a freehand pictorial sketch of a try square.
(ii) Indicate and label any two parts of the try square sketched in question 2(c)(i)
Figure 1 shows the front elevation and plan of an object made from a mild steel sheet.
(d) Draw full size the following:
(i) front elevation
drawing the base line
drawing the two adjacent lines
drawing the centre line
(ii) plan
drawing the circle
dividing the circle into equal number of parts
(iii) surface development
drawing the seam
drawing the arc
stepping division from the plan onto the arc
correct development of the cone
(e) (i) State the name of the object shown in Figure 1
Cone
(ii) List two tools used for cutting the mild steel sheet.
snips
shears
junior hacksaw
sheet saw
(f) (i) Make a freehand pictorial sketch of a try square.
(ii) Indicate and label any two parts of the try square sketched in question 2(c)(i)
Blade
stock
Rivets
Brass plate
(a) List two tools each used in carrying out the following operations in blockwork:
(i) laying
(ii) setting out.
(b) (i) Make a freehand pictorial sketch of a spade
(ii) Indicate and label any two parts of the spade sketched in question 3b(i)
(c) (i) State one use of the tenon saw.
(ii) State one way of maintaining the tenon saw.
(d) Sketch the representative symbol for each of the following electrical components:
(i) switch
(ii) battery.
(e) Copy and complete the table below:
Material | One Property | One use |
(i) Clay | ||
(ii) Wawa | ||
(iii) Aluminium |
3. (a) List two tools each used in carrying out the following operations in blockwork:
(i) laying
hand trowel
spirit level
float
gauge rod
straight edge
mortar board
line and pins
brick hammer / comb hammer
bolster and club hammer
builder’s square
(ii) setting out.
builder’s square
spirit level
tape measure
chalk
pegs
(b) (i) Make a freehand pictorial sketch of a spade
(ii) Indicate and label any two parts of the spade sketched in question 3b(i)
Handle
Shaft
Blade
(c) (i) State one use of the tenon saw.
Used for cutting tenons
For all general small cross cutting jobs
(ii) State one way of maintaining the tenon saw.
Sharpening
Shaping
Setting
Topping / jointing
Oiling the blade
Cleaning
Racking the saw
(d) Sketch the representative symbol for each of the following electrical components:
(i) switch
(ii) battery.
(e) Copy and complete the table below:
Material | One Property | One use |
(i) Clay | It swells when wet, it cakes with cracks when dried Shrinking ability is high. It does not adhere to cement. Soft, plastic and sticky when wet Shearing ability is high | Buildings, pots, local dishes, burnt bricks, roofing tiles, cement production, Blacksmith’s forge |
(ii) Wawa | Cream / Yellow-white in colour. Interlocked and even-textured grain. Soft and easy to work with. It is not durable. Light in weight | Form work construction. Temporary structures in building construction sites. Inner veneers in plywood cheap furniture work. |
(iii) Aluminium | Light in weight. Good conductor of electricity/ heat It is malleable. It is ductile. Corrosion resistant. Can be cast. Can be machined. Can be polished. Melts at 650°C. Shiny surface. High strength | Roofing sheet. Louvre frames. Louvre blades. Cooking utensils. Electrical cables. Cooking foil Parts of airplanes |
(a) Copy and complete the table below by supplying one tool each for each of the following operations
Operation | Blockwork | Woodwork | Metalwork |
(i) Cutting | |||
(ii) Measuring | |||
(iii) Striking |
(b) Figure 2 shows the sketch of a handtool. Use it to answer the following questions:
(i) Write the name of the tool.
(ii) State one use of the tool
(iii) Identify the parts labelled Q, R and S.
(c) State three causes of accidents in the workshop
(d) State one reason for sprinkling water on sandcrete blocks.
(a) Copy and complete the table below by supplying one tool each for each of the following operations
Operation | Blockwork | Woodwork | Metalwork |
(i) Cutting | Bolster, Brick/block hammer Wall chisel, Club hammer | Saws. Planes Chisels Gouges Brace bits | Hacksaws Files Chisels Shears Snips Drills Taps and dies |
(ii) Measuring | Surveyors’ tape Tape measure Gauge rod Builders square Gauge box Head pan | Rule Tape measure Folding rule Dividers Wing compasses Callipers Sliding bevel | Steel rule, Steel tape measure, Micrometer screw gauge Venier callipers Inside and outside callipers Pair of compasses |
(iii) Striking | Club hammer Brick hammer | Claw hammer Warrington hammer Cross pein hammer Straight pein hammer Mallet | Ball pein hammer Sledge hammer Mallets |
(b) Figure 2 shows the sketch of a handtool. Use it to answer the following questions:
(i) Write the name of the tool.
Tenon saw
(ii) State one use of the tool
For cutting tenons,
For general small cross cutting joints
(iii) Identify the parts labelled Q, R and S.
Q – Handle
R – Blade
S – Toe
(c) State three causes of accidents in the workshop
Slippery floors
Running in the workshop
Walking barefooted in the workshop
Inattentiveness in the workshop
Using wrong tools for the job
Over confidence
Not using protective clothing
Using tools with faulty handles
Carelessness
(d) State one reason for sprinkling water on sandcrete blocks.
To help the block to attain its maximum strength through the process of curing
To prevent rapid drying
To reduce shrinkage
To make it dense
To prevent / reduce cracks
To make it durable
End Of Paper
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