To be an electrician requires you have to be able to make calculations relating to electrical design. It is important to have a good understanding of sums, algebra, geometry and trigonometry. Working with Electrical can be hazardous when miscalculations occur.
Geometry comes into play when calculating cross sectional areas of cables and algebra is used when calculating current (Amps) and electrical loads.
Trigonometry comes into play when you start to look at capacitance and magnetism.
Below we have listed a number of link to Aptitude tests, we strongly recommend you practice these tests prior to sitting your aptitude Exam.