Hello Aspirant,
In concept, you don't "have" to know much. The engineering program will teach you everything you need going into it (other than mathematics up to calculus).
But the reality is different. The first year of engineering school is often notoriously work intensive. The depth and challenge of your courses will not be as hard as your 3rd year classes. However, the breadth and number of tests that you will need to take will be the highest of your engineering career. You will be taking lots of general courses including:
Calculus (multiple courses)
Chemistry
Physics (multiple courses)
Biology
Engineering Design
Differential Equations
Hope its help you.
All the best!!!!!
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