I certainly hope it is the case that the OP has given academic presentations before and has answered questions from faculty before.
You are never expected to know everything about your subject or be able to answer every question related to your work.
When you do not know something, an ideal answer is "I don't know, but..." What follows should show that you know related to the question and/or have some ideas about what you would do in order to learn the answer that you do not now possess.
In my opinion are not very important, and the less framing material and the more direct the answer, the better.
But the OP can try out answering questions with his advisor, and if there is really some formal deficiency, his advisor can help him remedy it. Getting stock phrases from the internet from those who don't know the OP or the subject of his thesis seems quite likely to backfire.
Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. There could be difficult questions which are beyond the objective of my thesis, the examiner could point out a better methodology or I might have missed some of the most important papers in the field and so on.
I am in need of some starting phrases or words which I can use while responding to the questions from the examiners.
In searching for the best sample of the Ph D thesis acknowledgement we have ran across Ph D thesis wrote by Ernest Alexander, on the topic „Formulation and stability of model food foam microstructures“ which is defended on the University of Birmingham....
Continue reading → I would like to thank the all library media specialists for their participation in the survey who supported my work in this way and helped me get results of better quality. Continue reading → The acknowledgements or dedication page is optional.
That kind of ceremony - like the robes, and hats, and the "procession" etc. Find some official involved with organizing the examination and have them tell you about the ceremonial procedure.
But again - it's the substance, not the form, which matters.