After filling out the top half of the form, consult with your advisor to decide on a tentative date (or a few potential dates) for your Qualifying Examination, as potential committee members will want to know when the examination is, as they may have a conflict with your chosen date. After your advisor signs the form as the "chair," put together a list of 4-6 additional faculty (beyond your advisor) that you might want on your committee, including 1-2 potential members outside the EE department, and approach them to ask if they will serve on your committee. When you approach these faculty members, make sure you let them know of the potential exam dates - it can be very difficult to find a day and time that all 5 faculty members can attend!
When you have all 5 committee members established via their signatures (including one outside member), take the form to the department chair for their signature on line II, then return the form to the Graduate School for their signature on line I. You will receive the pink copy in the mail once the Graduate School has verified your eligibility for the Qualifying Examination and signed the form (usually in about 2 weeks). It is strongly suggested that you make a photocopy of the form prior to turning it in, in case there are any problems.
If you need to make a change to your committee after it is established, for any reason, fill out the Change of Committee form, which you can download from the Graduate School here. Remember that the Application Form must be turned in a minimum of 30 days prior to your exam date!