Factual? I have been asked a question similar to this before, so I'm pretty sure it's that. By "technical writing," do you mean like a research/professional report? If so, then it is definitely factual. :)
Technical writing refers to the writing process that includes documenting processes or drafting technical information about a particular subject. The prerequisite feature of technical writing is that the idea should be conveyed in the most clear and effective manner. It is about managing technical information in a manner that permits people to take actions or decisions as it aims to inform and instruct readers. <em>Thus, it involves the emphasis on the clarity and effectiveness of the information regardless of the tone that one chooses to deliver the technical details or information.</em>