Yes and no. Yes because many famous engineers have difficulty writing papers that are long and extended but no because in either case, they need to know how to write.
Higher than usual
Very high, most engineers are not good at writing anyway, they are only good at the math and the numerical and logical processes.
That should be rather obvious as these people seem to speak in math. Computer science to theoretical mathematics.
Louis Pasteur was dyslexic and dysgraphic, according to his french wiki page.
Most likely science majors, math and engineering, but it's a good idea for dyslexics to improve their writing skills a bit.
I'd like to imagine engineering is for anyone who can become competent enough in the skills required of engineers.
very slim, I never heard of another dyslexic engineer other then myself. The only way I got here though was through a lot of sweat, study, pain, hardship, extreme study sessions, and friends along the way to help you when you're down. In the real world you won't be alone like on an exam. So you always have time to double check your work which is Ideal for a dyslexic
well, you gotta know physics and good communication skills because engineers work in groups on projects.
I would never say never. It's true that much of what engineers do, is written communication and drawings. Nobody just builds things on their own anymore. There has to be a team working off the same plans, checking each others' work. So part of the job would be harder for a dyslexic or dysgraphic, depending on the degree to which the condition exists. It may be less an issue depending on the type of engineering. However, nobody doing a job is equally good at every aspect of it. Greater skill in math, spacial skills, or other areas specific to the type of engineering, may be more valuable to a potential employer, as they are less common. Usually there are different projects or parts of the project to choose from, and people volunteer for, or are assigned, parts that best fit their skills and knowledge. And if the condition is severe, there are assistive technologies now for reading and writing.