OCR 2023 Design and Technology H004/01: Principles of design engineering AS Level Question Paper & Mark Scheme (Merged

This is an electric skateboard and a remote control unit. (a) Identify one type of wireless technology that could be used to connect the remote control unit to the electric skateboard. .............................................................................................................................................. [1] (b) Identify two design considerations that would need to be taken into account when designing the remote control unit. Justify each of your answers. 1 ................................................................................................................................................ ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... 2 ................................................................................................................................................ ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... [4] speed control electric skateboard Power Reverse remote control unit 3 © OCR 2023 Turn over (c) Inside the remote control unit is a printed circuit board (PCB) on which the electronic components are mounted. Use annotated sketches and/or notes to show how: • a PCB is manufactured on a commercial scale • electronic components are soldered to a PCB. [6] 4 © OCR 2023 (d) The remote control unit connects to the motor of the electric skateboard. The speed of the motor on the electric skateboard changes when the user adjusts the speed control on the remote control unit. Describe how this system works. .....................................................................................