As somebody who regularly sits on interview panels and is a manager, who shares a pool of admin staff between myself and 3 other managers, putting down that you wouldn't have taken on the jobs would probably, if I was on the panel, get you put to the bottom of the pile.

I look for somebody who shows initiative, who can identify the steps needed for each of the jobs, be able to explain this and be able to talk and negotiate with the managers.

Some managers do not know what takes to do a job. I also have had subordinate staff who had no idea what went into doing a certain job.

If I had one of the admin officers come to me and say that she'd been given work by other managers, that job A had these components, job B had these components and job C had these components to complete the job and there was no way that all of these components could be done in the allotted time-frame, then I would probably say to her that if she could get X and Y done on my job, that she could do Z in the morning. But she needs to know what goes into each job and have a pretty good ball-park idea of how long each component would take.

This question is about knowing your own skills, your time management skills, your ability to negotiate with staff. If this is a low-level admin officer position, then I don't really expect you to be able to delegate, but be able to ask other staff for help in the task.

Good luck with the application.