Feedback on MATH35001 exam Jan 2015
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Overall the paper was done extremely well. Marking it,
I actually felt that the paper was "too easy" and 
expected to have to scale it down, but the mark
distribution was exactly as it should have been
(based on the students' previous averages, which we
use as guidance for scaling). Lots of people
got grades in the 90s and only very few did
really badly (and those tended to truly beyond 
hope).

Re the specific questions:

Q1: Mainly fine; some (though very few) students are (still!) confused
    by index notation...

Q2: Again mainly fine; some people struggled with the non-dimensionalisation.

Q3: Another easy one (it seemed); the only problems arose
    from the complex roots of the characteristic polynomial.

Q4: A surprising number of students skipped essential steps
    in the derivation of the parallel flow equation. E.g.: Why is
    grad p = G(t) e_x?

Q5: Generally well done. If anything, people struggled with
    (i.e. cheated) with the derivation of Bessel's ODE
    (always a temptation when it's a "show that" question -- I
    do actually read the derivation and don't just look at the 
    final result!). Many people omitted the final question re the 
    physical interpretation. 
  
Q6: Generally OK; lots of people got stuck in the application of 
    the boundary conditions (because of the slightly lengthy
    algebra), messed up the argument that shows why the
    shear stress is singular, or provided an unconvincing
    (a.k.a. wrong) explanation of where it comes from.