OCR A Level in Design and Technology: Design
Engineering Problem Solving in Design
Engineering (H404/02)
Oxford Cambridge and RSA
June 2026 – Morning
A Level in Design and Technology:
Design Engineering
H404/02 Problem Solving in Design Engineering
Time allowed: 1 hour 45 minutes
You must have:
• the Resource Booklet
You can use:
• a ruler (cm/mm)
• a scientific calculator
• geometrical instruments
* H 4 0 4 0 2 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. You can use extra paper if
you need to, but you must clearly show your candidate number, the centre number and
the question numbers.
• Answer all the questions.
• Use the Resource Booklet to answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
• Each question tells you which part of the Resource Booklet to use.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 16 pages.
ADVICE
• Read each question carefully before you start your answer.
, 2
Read the Resource Booklet before you answer the questions.
1* The development of autonomous vehicles to help during disasters has introduced many issues
for design engineers.
Discuss the key technical challenges and ethical considerations a design engineer would face
when developing an autonomous vehicle for use during disasters.
In your answer you must consider:
• technical challenges
• ethical considerations.
Refer to pages 2 – 4 of the Resource Booklet. [14]
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, 4
2* Page 3 of the Resource Booklet describes a Magirus Aircore TAF35 fire-fighting robot.
Such complex systems are developed through the collaboration of many different design and
engineering specialists.
Critically examine the significance of collaboration amongst engineers in the design and
development of complex systems such as the fire-fighting robot.
In your answer you must consider:
• the design phase of the product
• prototype and testing
• manufacture and production.
Refer to page 3 of the Resource Booklet and also draw on examples from your own studies. [12]
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, 6
3 Page 5 of the Resource Booklet shows a concept for a miniature search robot named ‘Scout’.
The Scout robot uses rubber tracks to allow it to travel over uneven ground.
(a) The rubber tracks are to be purchased from a specialist supplier. The designers need to calculate
how much track will be required for the Scout robot.
(i) Use Fig. 4 to calculate the length of rubber track that will be needed for one side of the Scout
robot. Give your answer in mm and show your working. You should ignore track thickness. [3]
Length of rubber track ............................................... mm
The design engineers need to calculate the mass of the rubber tracks.
(ii) Use your answer from part (a)(i) and Fig. 4 to calculate the total mass of both rubber tracks.
Give your answer in kgs and show your working.
The following equations may prove useful:
(V) Volume = (A) Area × (L) Length (m) mass = (ρ) density × (V) volume [3]
Total mass of both rubber tracks ............................................... kgs
© OCR 2025
Engineering Problem Solving in Design
Engineering (H404/02)
Oxford Cambridge and RSA
June 2026 – Morning
A Level in Design and Technology:
Design Engineering
H404/02 Problem Solving in Design Engineering
Time allowed: 1 hour 45 minutes
You must have:
• the Resource Booklet
You can use:
• a ruler (cm/mm)
• a scientific calculator
• geometrical instruments
* H 4 0 4 0 2 *
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. You can use extra paper if
you need to, but you must clearly show your candidate number, the centre number and
the question numbers.
• Answer all the questions.
• Use the Resource Booklet to answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
• Each question tells you which part of the Resource Booklet to use.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 16 pages.
ADVICE
• Read each question carefully before you start your answer.
, 2
Read the Resource Booklet before you answer the questions.
1* The development of autonomous vehicles to help during disasters has introduced many issues
for design engineers.
Discuss the key technical challenges and ethical considerations a design engineer would face
when developing an autonomous vehicle for use during disasters.
In your answer you must consider:
• technical challenges
• ethical considerations.
Refer to pages 2 – 4 of the Resource Booklet. [14]
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
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..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
, 4
2* Page 3 of the Resource Booklet describes a Magirus Aircore TAF35 fire-fighting robot.
Such complex systems are developed through the collaboration of many different design and
engineering specialists.
Critically examine the significance of collaboration amongst engineers in the design and
development of complex systems such as the fire-fighting robot.
In your answer you must consider:
• the design phase of the product
• prototype and testing
• manufacture and production.
Refer to page 3 of the Resource Booklet and also draw on examples from your own studies. [12]
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
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..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
..........................................................................................................................................................
, 6
3 Page 5 of the Resource Booklet shows a concept for a miniature search robot named ‘Scout’.
The Scout robot uses rubber tracks to allow it to travel over uneven ground.
(a) The rubber tracks are to be purchased from a specialist supplier. The designers need to calculate
how much track will be required for the Scout robot.
(i) Use Fig. 4 to calculate the length of rubber track that will be needed for one side of the Scout
robot. Give your answer in mm and show your working. You should ignore track thickness. [3]
Length of rubber track ............................................... mm
The design engineers need to calculate the mass of the rubber tracks.
(ii) Use your answer from part (a)(i) and Fig. 4 to calculate the total mass of both rubber tracks.
Give your answer in kgs and show your working.
The following equations may prove useful:
(V) Volume = (A) Area × (L) Length (m) mass = (ρ) density × (V) volume [3]
Total mass of both rubber tracks ............................................... kgs
© OCR 2025
