Many students ask me if they are allowed to ask an examiner to speak louder or explain the question or even explain the meaning of a word.
Yes, yes and yes. You don’t get penalized for asking clarification and explanation. These are strategies that even native speakers use to maintain a conversation.
So, say: “I am sorry I am not sure I’ve caught that. Could you please repeat?” I am sorry but I can’t remember the meaning of this word right now. Would you mind paraphrasing it for me?” This will make you sound natural and confidence.