Read all the questions and the rules carefully, find out what is actually being asked. Time allowed, 30 mins.
There are 9 questions, answer 6. 30 minutes each question. Total time allowed, 3 hrs 30 minutes.
If you can understand the 6 questions you are going to attempt in 10 minutes, good, you've just gained 20 minutes. Pick the easiest one, do that first. Done it in 10 minutes? great, you gained another 20 minutes. Look at what's left, do the easiest one and so on, and so on til you've attempted or completed 6. Every question has the same value.
Keep your answer to the point and keep it simple. If the question is about pistons, don't write about crankshafts. You might write a 6 page essay on crankshafts, it won't get you any more points, but make a mistake, you will lose them. Your writing must be ledgible and understandable, if I can't understand it, I won't be able to mark it. All, and I mean ALL calculations must be shown. I marked a 1st Class Nav Arc question paper done by a cadet from a college which shall be nameless. The guy was either a whizz kid with a calculator or a cheat, each question was written down carefully on the paper, then the correct answer to the calculations right below it. He couldn't understand it when I failed him and he appealed. The paper was sent to HQ in Ottawa and I never heard any more.
2 pieces of advice for writing a TC Exam, R.T.F.Q. and K.I.S.S.
Discourage incest, ban country "music".