Aptitude
As stated by @ Aviatorette, Grimz & Asili, Today's process was very tiresome. The procedures at KQ & DEFTEC where we did the test are long, for those going tomorrow ,prepare psychologically to spend the whole day.
Make sure you go through basic physics, chemistry and maths as outlined by @ Bolt.
Just a reminder: concetrate, be fast, accurate & calm.
All the best.