In case they encounter any architecture students.

They just think they're neat. :)

For stripping wires, making small modifications to 3D prints, cutting tape, etc

it's for threatening slow walkers who are blocking the way from the eng students' fifth to sixth lecture of the day across campus after getting out of a 2 hour shitty lab period

Engineer does need a knife.. but all other tools attached to that Swiss army knife, leatherman...etc.

Probably for cutting boxes and opening bags. You never know what you might need a knife for until you do.