Drawing and Design Paper 2 Questions and Answers - MECS Pre Mock Exams 2023

INSTRUCTIONS TO CANDIDATES

1. Answer ALL the questions
2. All the answers and working must be written on the question paper in the spaces provided below each question or in A3 paper provided.
3. Label every drawing drawn on A3 paper provided

QUESTIONS

DESIGN PROBLEM (40 marks)

During rainy seasons, most people are expected to clear mud from their shoes before they get into any office or household. Design a device that can be used to clear mud from shoes considering the following:

1. It should be operated by hands
2. It should deposit mud in a container.
3. The scrapper should be made of brush
4. It should spray water to soften the mud.

Requirements

1. Make sketches of two possible solutions for your design (6 marks)
2. Select one of the designs in (a) above and make a refined labelled pictorial sketch  (14 marks)
3. Make detailed sketches for the mechanisms to allow for each of the considerations above   (15 marks)       
4. List three materials used and state one reason for the choice of each. (3 marks)
5. State two methods of joining the parts and state where each is used  (2 marks)

MARKING SCHEME

During rainy seasons, most people are expected to clear mud from their shoes before they get into any office or household. Design a device that can be used to clear mud from shoes considering the following:

1. It should be operated by hands
2. It should deposit mud in a container.
3. The scrapper should be made of brush
4. It should spray water to soften the mud.

Requirements

1. Make sketches of two possible solutions for your design (6 marks)
   
2. Select one of the designs in (a) above and make a refined labelled pictorial sketch (14 marks)
   
3. Make detailed sketches for the mechanisms to allow for each of the considerations above (15 marks)   
   
   
   
4. List three materials used and state one reason for the choice of each. (3 marks)
   • Steel- to make the lever
   • Rubber- to make the brush
   • Iron- to make mud container.
5. State two methods of joining the parts and state where each is used (2 marks)
   • Use of bolts and nuts- assembling the brush.
   • Welding- to join the body.