A PhD, also known as a Doctor of Philosophy degree, is a doctorate awarded by a university to the academic who has met all necessary qualifications and can now be considered a doctor in his or her academic field.
You can only be in a position to solve advanced engineering problems if you have PhD training in engineering. To be admitted as a doctoral student, one must hold a masters degree in the Engineering or related subject and pass a comprehensive entrance exam.
The United States of America is a large country in North America, often referred to as the "USA", the "US", the "United States", "America", or simply "the States". American colleges are funded by "tuition" charged to the student, which is often quite expensive, very commonly reaching into the tens of thousands of dollars per year.
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