Bet the skills test is a list of jobs and you have to put them in order of priority.
Questions could be around confidentially, team work, IT skills, difficult situations, problem solving.
They'll all be phrased like 'our team is very busy with lots of different tasks needing doing on a day to day basis; can you give us an example of when you have worked within a busy team and successfully prioritised your work to get jobs done.'
'we deal with lots of personal information about individuals within our organisation, can you give us an example of when you have worked confidentially?'
If you're in local government there may be a safeguarding based question, it's the in thing!
Make sure your answers are STAR so situation ( where does the issue fit in the grand scheme of things) Task- (what needed doing) Action (what did you do?) result (what was the outcome?) So like dealing with difficult customers - someone rang up annoyed at something, I took the call, there were no senior colleagues around. I recognised the person needed calming down and needed advice about x. I spoke confidently and calmly using my knowledge of x, the person was able to do x as a result of my advice. They were happy when we finished the call. A few weeks later the person called again to thank me for my advice. They'd successfully done whatever it was he wanted and wanted to share the success with me.
Good luck!