Drawing and Design Paper 1 (449/1)
SECTION A (50 marks)
1 a) List four characteristics of a good technical drawing paper. (2 marks)
b) Given that paper size A4 is 210 x 297. Determine the sizes of thefollowing paper sizes
(ii) A3. (2 marks)
c) State two precautions in handling a T-square. (2 marks)
2 a) List six computer programmes that can be used to produce a drawing. (3 marks)
b) Deﬁne the term “mock-up" and state its purpose in the design process. (2 marks)
3 Name the three groups of metals and give one example in each group.
4 a0 Figure 1 is drawn to scale of 1:2.
(i) distance A;
(ii) the angle of the slanting face.
( b) Sketch to show how the diameters of eccentric circles on a solid piece can be dimensioned. ' (3 marks)
5. Deﬁne the following terms as applied to business enterprises:
(a) ﬁxed assets;
(c) liability. (3 marks)
6. Figure 2 shows two views of two pans of a machine component drawn in ﬁrst angle projections. Sketch the assembled parts in oblique projection. (6 marks)
(b) draw the true shape of the cut face. _
8. Flgure 3
Draw the locus of the end of a string when it is unwound from a 30 mm square prism for one complete revolution. (6 marks)
9. Figure 4 shows a block drawn in ﬁrst angle projection. Sketch the block in oblique taking (4 marks)
Figure 5 EE
11 Figure 6 shows parts of a mechanical component drawn in ﬁrst angle projection.
Assemble the parts and draw FULL SIZE, the following:
(a) sectional front elevation along the cutting plane P-P;
(b) end elevation;
(c) insert three leading dimensions.
Unspeciﬁed dimensions are left to the candidates discretion. Hidden details are not required.
(Use the A3 paper provided). (20 marks)
SECTION C (30 marks)
12 Figure 7 shows the front elevation and an incomplete plan of a truncated hexagonal prism.
(b) draw the surface development of the prism (omit the ﬂaps).
13 Figure 8 shows an inclined plan of a bloc k and its front elevation.
(i) the front elevation
(ii) the plan.
(b) Draw the development of tube B.
4.7.2 Drawing and Design Paper 2 (449/2)
A physically challenged person on wheelchair usually requires a special working table to perform different tasks. Design a suitable table for a challenged person considering the following:
lt should be easily moved from one position to another.
It should be adjustable to comfortable heights.
The working top should be adjustable to any desired angle of inclination.
The table should have an extended top that is collapsable. .
The table should have provision for placement of light stationery like pencils, pens, pins, erasers and rulers.
A) Make free-hand sketches of two possible solutions for your design. (6 marks)
b) Select one of the designs in (a) above and make a reﬁned labelled pictorial sketch. (13 marks)
c) Make detailed sketches of the mechanism to allow for each of the considerations 1-5 above. (16 marks)
d) List two materials to be used and state one reason for the choice of each. (2 marks)
v e)State three methods of joining the parts and state where each is used. (3 marks)
Drawing and Design Paper 1 (449/1)
1. a) Size should be standard
White colour/ good colour for contract / colour
Ink must not run on it! blooting factor
The edges should be perpendicular to each other
c) maintain right angle between blade and stock
maintain straightness of blade edge
store such that the blade is in a vertical position
avoid dropping or storing in direct sunlight
Only use it for the intended purpose
2. a) word processing -
corel draw -------draw plus
Archi-CAD -------sketch up
Auto-CAD -------punch card
Mat lab -------Real draw
Mock-up is a scale model of the ﬁnished work made in any suitable material.
Purpose - Mock-up is made and tested to ﬁnd out weather or not the design is satisfactory Imperfection not seen when drawing may show up clearly in a mock-up
3. - Ferrous e.g steel _
- Nonferrous e.g copper, level, aluminium, silver, gold
- Alloys eg. brass, bronze solder
4.a) 45 x 2 = 90
(ii) Angle = 25°
b) (i) Measuring -
(ii) Angle -
ii Ecenfric circles = 1
Solid piece = 1
Dimension; = 1
(b) Deﬁcit is the amount by which expenditure is greater than income.
(c) Liabilities is ﬁnancial obligation 1 mark
Kenya Scholarships for Undergraduate Students » Kenya Scholarships for Postgraduate Students » Undergraduate Scholarships for Kenyan Students » Kenya Undergraduate Scholarships » Full Undergraduate Scholarships for Kenyans » Kenya Postgraduate Scholarships » Scholarships & Grants » Undergraduate Scholarships » Universities in Kenya » Kenya Universities and Colleges Central Placement Service (KUCCPS) » Colleges in Kenya » KASNEB Registration & Results » Secondary Schools Scholarships in Kenya » Undergraduate & Graduate Scholarships for Kenyans
Scholarships for African Students » Undergraduate Scholarships » African Women Scholarships & Grants » Developing Countries Scholarships » Erasmus Mundus Scholarships for Developing Countries » Fellowship Programs » Funding Grants for NGOs » Government Scholarships » LLM Scholarships » MBA Scholarships » PhD and Masters by Research Scholarships » Public Health Scholarships - MPH Scholarships » Refugees Scholarships » Research Grants » Scholarships and Grants
Scholarships in Australia » Scholarships in Belgium » Scholarships in Canada » Scholarships in Germany » Scholarships in Italy » Scholarships in Japan » Scholarships in Korea » Scholarships in Netherlands » Scholarships in UK » Scholarships in USA