Dear Maurice:
I gonna answer you based in my actual aknowledge about this issue but I recommend you that read very well the AWS QC-1 standard and, after, try (again) to speak directly with AWS's certification staff.
1. The QC1 is a standard for AWS Certification of Welding Inspectors (a document) where you can find the requirements to obtain the certification (levels of cert., functions, experience, examination, etc.). You must read it very well before your application. The QC1 stablish different levels of certification: Senior certified welding inspector (SCWI), certified welding inspector (CWI) and certified associate welding inspector (CAWI), all of them according the same QC1.
2 & 3. Basically, you would take the following: (a) an exam in order to evaluate your welding aknowledgement without books (closed book test); (b) an open book test using a particular code (AWS D1.1, API 1104, ASME section IX, etc., you choose it freely); and (c) a practical test related with welding inspection (AWS will give you all the material required for your test - samples, inspection tools, standards, etc.).
4. Yes.
5. No for the exam, may be for your own study and practice in home.
6. I don't know. However, the AWS's codes (like D1.1 and D1.5) accept welding inspectors qualified by the Canadian Welding Bureau (level II or III) instead CWI. I don't know if the CWB does the same, check it.
7. I don't understood your question.
8. The "Certification manual for welding inspectors" and "Welding Inspection Thecnology" by AWS. The former has a lot of tipical questions about the different themes for evaluate during the exams.
You can obtain more detailed information in the AWS QC1 standard.
I hope this help you. If you need any other info you can E-mail me.
Jorge Giraldo
Medellín, Colombia