I've just sat BHPA club pilot exam.
There is a general club pilot paper and then a "power" paper.
The questions on the links put up don't look like the questions I was asked.
The paper is set by the BHPA. The instructor does not set the test. I was told there is only one paper, it is the same for everyone.
The questions are not that difficult, they are multiple choice, and you don't have to get 100% to pass although there are some questions - air law etc. you are not allowed to get wrong.
Read the relevant bits of BHPA pilot handbook and you will be fine for most of it.
The questions I can remember were on:
Air law - giving way, flying over towns, radios, notams, air maps etc.
Basic weather - anticyclones, wind speed, wind gradients etc.
Flight theory - lift, thrust, drag, wind speed vs air speed,