After some research and necessary updating of our baseline test for year 7, I have created the following resource to encompass all of the areas within KS3 DT (for my department this is Product Design (timber, metal, plastics, electronics) F&N and Textiles.
The resource is broken down in to a page roughly for each subject area, with focus on numeracy, measuring and basic use of equipment. Identification of tools and machinery in the department are also included as well as more detailed questions for F&N, including hygiene and a design based task to measure creativity, design skills etc.
I have yet to develop a mark scheme for this, but the test has been made simple enough for marking to allow for peer assessment, with the design question being the only one that may require teacher critique.
I hope you find it useful, please leave some feedback!