Provide assessment and feedback on PHP expertise question base

We have a collection of multiple-choice questions related to PHP programming. The job is to read each question carefully, analyse both the question, the proposed answers and the explanations, then give your expert feedback on the quality of the question: Is it relevant to good PHP programming ? Is it correct and is the answer correct ? Is it clear, easy to understand ? How difficult is it ? Etc. It is estimated that this takes 2 minutes per question, for a total of 180 questions. However we would start with a small experiment on 30 questions, then proceed the rest if OK. What matters most is the quality of feedbacks, not the time spent. This job does not require the topmost expert, but a real, solid experience in PHP programming.