Well, really, when I write like that, I just give examples and I refer back to the previous topic, showing that I am still talking about it.
Answer:
Prepare plans with detailed drawings that include project specifications and cost estimates.
Design and execute engineering experiments to create workable solutions.
Develop engineering calculations, diagrams and technical reports.
Complete required technical and regulatory documents.
Explanation:
It is on google if you need more information.
D.all of above Fidel Fidel
You forgot to add a story to the question... I would gladly help you tho ;)