HUMMM? sure there's a beef behind this question. This shouldnt even be a question. In order to be an Officer you should be able to perform all the responsibilities that your agency would do on a day to day basis. Operating the pumps or engines would be mandatory.
As a volunteer in a small department, our SOG's require that officer candidates have 3 years experience as an engineer. It is extremely important for all members to know basic pump operation in a volunteer dept. You never know how may members will respond to a call at any given time. More than once we have had to run a call with an officer doing the engineering.