# KCSE 2019 Drawing And Design Paper 1 Questions with Marking Scheme

Drawing and Design Paper 1 (449/1)

SECTION A (50 marks)
Answer all the questions in this section on the answer sheets provided.

1.
1. Outline three qualities of an entrepreneur. (3 marks)
2. State four characteristics of a good technical drawing paper. (2 marks)
2.
1. Name two instruments used for drawing vertical lines. (1 mark)
2. State two uses of dividers in technical drawing (2 marks)
3. Figure 1 shows an engineering template drawn by utilizing six types of lines labelled A-F.

1. Name the types of lines.
2. State the use of each line.(3 marks)
4.
1. State three classifications of metals and give one example of each. (3 marks)
2. Construct an internal tangent to touch the circles shown in Figure 2 (3 marks)
5.
1. Use sketches to describe three types of dimensions in drawing. (3 marks)
2. Construct a diagonal scale in which 30mm represent 1 km to read up to 4km. Indicate a distance of 2.84km on the scale. (5 marks)
6. Figure 3 shows the front elevation and incomplete plan of a truncated square pyramid.
Complete the plan and draw the true shape of the cut face.

(5 marks)
7. Make pictorial sketches of the following fastening devices: (6 marks)
1. Gib head key.
2. Woodruff key.
3. Feather key.
8. List six computer programmes used to produce technical drawings. (3 marks)
9. Figure 4 shows a simple shaped block drawn in isometric projection.

Draw the front elevation and plan of the block in first angle projection. (6 marks)
10. Figure 5 shows three views of a block drawn in third angle projection.

Draw the block in oblique cavalier projection. (5 marks)

SECTION B (20 marks)
This question is compulsory.
It should be answered on the A3 paper provided.
Candidates are advised not to spend more than one hour on this question.

1. Figure 6 shows parts of a pulley bracket drawn in first angle projection

Assemble the parts and draw Full Size the following views in first angle projection:
1. Front elevation
2. Sectional plan along the cutting plane X-X (20 marks)
Do not include hidden details.

SECTION C (30 marks)
Answer any two questions from this section on the A3 paper provided

1. Figure 7 shows two views of an axle boss drawn in first angle projection. Draw the boss in isometric projection taking X as the lowest point. (15 marks)
Include six dimensions.
2. Figure 8 shows an elevation of a joint formed by two pipes A and B at a right angle. Draw the development of the pipes. (15 marks)
3. An archimedean spiral has its nearest point 15mm from the centre (pole) and the furthest point 85 mm from the centre. Draw the spiral. (15 marks)

MARKING SCHEME

1.
1. Qualities of an entrepreneur
• Ability to pursue self-employment
• Ability to identify business opportunities
• Ability to mobilize or solicit for funds or resources
• Ability to solve problems Is a risk taker.
• Is creative
• Is an innovator
• Is a good manager of time
(Any 3 x 1=3 marks)
(3 marks)
2. Characteristics of a good technical drawing paper
• The texture should be smooth
• The colour should be white for contrast
• The thickness should be adequate so that the pencil does not penetrate through (should not tear easily)
• The surface finish should not be glossy to cause reflection.
• Should be standard sizes
(Any 4 x ½ = 2 marks)
2.
1. Two instruments for drawing vertical lines(2 marks)
• T-square
• Set - square
(Any 2 x ½: 1 mark)
2. Use of dividers
• Transferring measurements from the ruler to the drawing or from one drawing to another
• Stepping off a series of equal distances.
(Any 2 x1= 2 marks)
3. Types of lines
1.  - Outline - used to show visible outline and edges
2. - Centre line-used to show centre lines for circles or lines of symmetry
3. - Hidden detail lines used to show features which are hidden from viewer.
4. - Cutting plane line-indicates where the cutting planc is
5. - Break line indicates the limit of partial views as sections
6. - Hatching lines - it is used to show the part which has been cut
(6 x ½=  3 marks)
(3 marks)
4.
1. Classifications of metals
• Ferrous metals c.g. steel, iron
• Non ferrous metals e.g. copper, aluminium, silver, gold
• Alloys e.g. brass, bronze
Naming 3 x ½ =1½marks
Examples 3 x ½ = 1½ marks
(3 marks)
2.
• Drawing the circles 80mm apart - ½ mark
• Bisecting 80mm distance - ½ mark
• Drawing semi-circle- ½ mark
• Drawing are radius R₁ +R₂ =½mark
• Drawing // lines - ½ mark
• Drawing the tangent - ½ mark
= 3 marks
5.
1.
2. Length of scale -    30     x(4x1000)=120mm
1000
• Determining the length of scale - ½ mark
• Division of 120mm into 4 divisions - ½ mark
• Division of 1 part into 10 divisions 1 mark
• Division of vertical part into 10 divisions 1 mark
• Drawing the diagonals - 1 mark
• Showing the reading of 2.84 km - 1 mark
= 5 marks
6.

Correct projections - 1 mark
Correct plan- 1 mark
Hatching correctly - 1 mark
Correct projection - 1 mark
Correct thrue shape - 1 mark
= 5 marks
7.
1.

(2x3= 6 marks)
8. Diagrams for drawing
• Archi - cad
• Paint
• Corel draw
• Sketch up
• Real draw
(Any 6 x ½ mark= 3 marks)
(3 marks)
9.

• F- Elevation
- 2 faces @1 = 2
PLAN
- 4 faces @½ =2
H/Details 2@ ½ =1
Neatness = 1
= 6 marks
10.

Correct oblique projection ½ mark
8 faces represented correctly 8 x ½ = 4
Line work mark ½ = 5 marks
11.

SECTIONAL PLAN AA
• F. ELEVATION
• 5 parts assembled @1 = 5 marks
• 3 bolt drawn @1 = 3 marks
• 3 centre lines= ½ mark
• PLAN
• Any 5 Parts shown @1 = 5
• Nut and pin not hatched 2x1=2
• Correct angle of projection=1 mark
• 3 Parts hatched @ 1= 3 marks
• Line work = ½mark
=20 marks
12.

• Isometric projection - 1 mark
• Correct main faces- 3 marks
• Construction of isometric circles - 5 marks
• Correct position of point X-1 mark
• Neatness and line work - 2 marks
6 Correct dimensions @½ - 3 marks
Total 15 marks
13.

• Copying of figures - 1
• Drawing circle and dividing into 12 divisions 1
• Correct Vertical Projections - 1
• Correct Horizontal - 1
• Part A and B
• Determining circumference 2 x 1 = 2
• Dividing circumference into 12 parts 2 x 1=2
• Vertical projections 2 x 1 = 2
• Horizontal projections 2 x 1=2
• Plotting of points 2 x ½= 1
• Joining the points 2 x 1=2
Total =15 marks
14.
• Drawing line OB & OA = 1
• Drawing circle radius OB = 2
• Division of AB into 12 = 2
• Division of circle into 12 = 2
• Drawing arcs from 1-11 = 3
• Joining the points to form the spiral = 3
• Line work and neatness = 2
15 marks

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