Do you need hand-drawn drawings to participate in industrial design competitions? Or is it a PowerPoint or a Rhino modeling rendering? I don't know in what form my ideas will be expressed!

Requirements vary from competition to competition, but generally do not require the submission of PPT.

May need to submit the model file and a rendering of the board JPG, to show your ideas on this board, sometimes may also need to have the size of the six views, or even photos of the hand plate...

In any case, look at the specific contest rules.