Hi Pilot5100.
I'm down for air law in a couple of weeks, don't have my references with me to confirm, but off the top of my head my thoughts are:
Q1 - my guess is c, class C,D,E,G. vfr is not permitted in class A,
Q2 - think it's car256A, on a mat, restrained and near the person can be in the cabin. (i got the same q wrong on ppl exam - the 2 answers must be very similar. It might be a case of not reading the question fully?
Q3 see CAO 20.16? on seat is ok, if restrained and less than 77kg.
Q4 there is a table in aip enr 1.1, up to 2000agl is 1 mile, 2000-5000agl 2 mile etc.
Q5 see ersa for freq, for vfr we mostly give broadcasts, not reports eg car166, if no discrete ctaf freq, generally use 126.7, haven't checked ersa but guessing blackall is out bush in the sticks, I'd guess A. - broadcast on 126.7?
Q6 AIP has info on cta changing levels, if you were at 6000 asked to descend to 4000, you wouldn't say maintaining 4000 unless you were there, so B, descending 6000 for 4000. I always try to relate this stuff to your practical flying, eg departure calls you would often say passing through 1500 climbing 4500, so no confusion of what your intentions are.
Q7 CAR 42zc has stuff on pilot maint, referring to sch 8. Pilot approved maint, eg tyre, tube, plugs, air filter, oil, bulbs etc. sch 5 is items required on a daily inspection ie preflight first flight of day (obviously pilots can do this too)
I'm sure others will contribute and make suggestions too, hope I haven't led you astray, I will soon find out myself in a fortnight. Thanks for the post, certainly helps with the preparation.
Cheers
Neville