Jimmie - just some simple second order differential equations, a fourier transform and a couple of two-page proofs involving cubics, regression analysis and laplace transforms.
Only kidding. Some simple fractions, some questions on time/ speed/ distance. Percentages, ratios, addition, long division, long mult. In short, nothing too taxing if you are competent to GCSE level.
Try
http://www.epst.com/com/ipas.htm too for the aptitude tests. Not vastly different from Pilapt and it at least gives you some idea...