Don't do a degree if you want to actually be working with aircraft and 'getting into their knickers' so to speak.
B1:
The B1 licence is a mechanical based licence and
permits the holder to issue certificates of release to
service following line maintenance, including aircraft
structure, power plants and mechanical and electrical
systems. Replacement of avionic line replaceable units
requiring simple tests without the use of test equipment
to prove their serviceability is also included within the
privileges of this licence. A Category B1 licence holder
also has a role in base maintenance in supporting the
Category C certifier who is the final CRS/SMI signatory.
B2:
The B2 licence is avionic based and permits the holder
to issue certificates of release to service, following line
maintenance on avionic systems. A Category B2
licence holder also has a role in base maintenance in
supporting the Category C certifier who is the final
CRS/SMI signatory.
Have a read of the
ELGD for licence information.