Which of the 2330 C&G Level 2 tests are hard?

[Mr Curnow]

I have a multi choice test coming up on the 16th, it's slightly worrying because my teacher said that most of us will fail from judging our progress. I'm not sure if he is just saying that as he want's us to do some revision or he is being serious . I have revised all the nearly the whole booklet that our class were given. I know -

Ohm's law (R=V/I)
Power (P=VI)
Energy (J=WT)
Electrical quanity (Q=IT)
Transformers (Np/Ns= Vp/Vs = Is/Ip)
Resistivity (R= ρl/A)
RMS Value = 0.707 of peak
Average Value = 0.637 of peak
Average to RMS = 1.11
Flemings Left hand rule for motors
Magnetic flux = Weber
Magnetic flux density = Tesla = Weber/Area

 

[apollo1979]

203 is very hard as it's AC theory and 3 phase. With the 3 phase, you need a formula of something like Vp=Vl/square root of 3 and Ip = Il (thats for a star) Delta, put current in the 1st one and voltage in the second

this is the bit i failed the 203 AC theory not really touched much on the subject while i have been at collage and didnt know it was in the exam all my tutor said was you will be taking some readings for that bit!!
The formula makes no sense, i have my re-sits next week and dont even know what to revise!