Drawing and Design Paper 1 Questions and Answers - MECS Pre Mock Exams 2023

INSTRUCTIONS TO CANDIDATES

1. The paper contains three sections: Section A, Section B and Section C
2. Section A carries 50 marks, section B carries 20 marks and Section C 30 marks
3. The paper contains 11 PRINTED pages make sure all PAGES ARE PRINTED and NONE IS MISSING
4. Answer ALL the questions in each section.
5. All the answers and working must be written on the question paper in the spaces provided below each question.
6. Label every drawing drawn on A3 paper provided

QUESTIONS

Section A (50 marks)

1.                  
   1. State three qualities of a good technical drawing paper (3 marks)
   2. State two ways in which a pencil can be sharpened. Give the purpose for each (2 marks)
2. Construct a right-angled triangle given the hypotenuse as 97 mm and one side as 43 mm (3 marks)
3. State three types of wood joints (3 marks)
4. State two ways in which a veneer can be obtained from logs (2 marks)
   1. State three disadvantages of metals as a material used in any design (1½ marks)
5.              
   1. Identify three factors of lettering that have not been considered in witting the title below (3 marks)
      FIRST ANGLE ORTHOGRAPHIC PROjeCtION
   2. State the aim of technical drawing that requires one to incorporate physical and mental alertness. Outline the remaining aims of technical drawing (2 marks)
6. Draw the view from the object shown below in third angle orthographic projection (6 marks).
   
7. Sketch a pictorial object for the views below in Isometric (6 marks)
   
8.                          
   1. State three specialized fields where technical drawing skills can be employed. Name the type of drawing done in each field (3 marks)
   2. State three factors that would cause a business to succeed (1½ marks)
9. The figure below shows a truncated square pyramid.
   
   
   1. Copy and complete the plan.
   2. Draw the true shape. (6 marks)
10. The figure below shows a square pyramid.
    
    Draw the development of the pyramid (6 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.

11. The figure below shows views of the parts of a tool.
    
12. Draw an involute of a square of sides 25 mm (5 marks) 

Section C (30 marks)
Choose any TWO question from this section

13. A toy car wheel of 60 mm diameter and four spokes has a point on one of its spokes. The point on the spoke is 10 mm from the circumference of the wheel. Draw the locus of the point as the wheel rolls without slipping for one revolution. (15 marks).
14. Below are two views obtained from an object.
    
    Draw the object from the views in isometric (15 marks)
15. The figure below shows front and plan of a truncated prism
    
    
    1. Copy the view
    2. Draw the true shape
    3. Draw the development of the prism (15 marks)

MARKING SCHEME

1.                    
   1. State three qualities of a good technical drawing paper (3 marks)
      • 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.
      • The surface finish should not be glossy to cause reflection.
      • Should be of standard size.
   2.  State two ways in which a pencil can be sharpened. Give the purpose for each (2 marks)
      • Chisel- used with a compass for drawing arcs and circles.
      • Pointed/conical- for general purpose e.g lettering and outlines.
2. Construct a right-angled triangle given the hypotenuse as 97 mm and one side as 43 mm (3 marks)
   
3. State three types of wood joints (3 marks)
   • Widening joints
   • Angle or box joints
   • Framing joints
4. State two ways in which a veneer can be obtained from logs (2 marks)
   • Rotary cutting.
   • Slice cutting
5.                  
   1. State three disadvantages of metals as a material used in any design (1½ marks)
      • It is difficult to shape.
      • It is relatively expensive
      • Heavy in weight.
   2. Identify three factors of lettering that have not been considered in witting the title below (3 marks)
      FIRST ANGLE ORTHOGRAPHIC PROjeCtION
      • Uniform height of letters
      • Uniform spacing of letters
      • Uniformity in the type of lettering
   3. State the aim of technical drawing that requires one to incorporate physical and mental alertness. Outline the remaining aims of technical drawing (2 marks)
      • speed
      • Other aims are: Technique, neatness and accuracy.
6. Draw the view from the object shown below in third angle orthographic projection (6 marks).
   
7. Sketch a pictorial object for the views below in Isometric (6 marks)
   
8.                          
   1. State three specialized fields where technical drawing skills can be employed. Name the type of drawing done in each field (3 marks)
      • Building industry- Architectural drawing
      • Mechanical engineering industry- machine drawing
      • Electrical industry- Electrical drawing.
      • Aircraft manufacturing industry- Aeronautical drawing
   2. State three factors that would cause a business to succeed (1½ marks)
      • Poor management
      • Unavailability of capital.
      • Low level of skills
9. The figure below shows a truncated square pyramid.
   
   
   1. Copy and complete the plan.
   2. Draw the true shape. (6 marks)
      
10. The figure below shows a square pyramid.
    
    Draw the development of the pyramid (6 marks)
11. The figure below shows views of the parts of a tool.
    
12. Draw an involute of a square of sides 25 mm (5 marks)
    
13. A toy car wheel of 60 mm diameter and four spokes has a point on one of its spokes. The point on the spoke is 10 mm from the circumference of the wheel. Draw the locus of the point as the wheel rolls without slipping for one revolution. (15 marks).
    
14. Below are two views obtained from an object.
    
    Draw the object from the views in isometric (15 marks)
15. The figure below shows front and plan of a truncated prism
    
    
    1. Copy the view
    2. Draw the true shape
    3. Draw the development of the prism (15 marks)