Hey guys just another question:) . In regards to the moment I understand that it will be given in the question but does this mean that it is actually drawn on the chart. If not how do you know where -225 or any other value is on the initial moment part thanks for your help i really appreciate it

With Loading System Alpha, you always start at the moment... Its where you draw your first Vertical line from... As for knowing where/what the number is, you find it on the horizontal line at the top of the loading system. It ranges from +200 through to -420 in multiples of 10 I/U (like you said it will be given in the exam)
Not too sure if this actually answers your question! haha

Shout out if it doesn't and I will have another crack!

MickyD got it in one. By the way, there is a worked example in the PPL supplement that should have come with your PPL textbook. If you don't have a copy you can download it here:

Link to Book Supplements

Loading system Alpha is worked through on pages 6 and 7.

Cheers,

Rich