how is the exam marked?

Dear Sir,

If the question states recommend one procedure, but if I know more procedures and have time, should I write 2 or 3?

Becuase if I write one it might be wrong and I get now mark, but if I write 2 – 3, the examiner will give mark to the highest one?

Same thing for control question, if question ask for 5 controls & tests, if i fnished the exam with say time to spare, i should write more controls? if this is indeed what the markers does, markes all and give mark for the best 5 , or only mark the first 5, then i would have done more for nothing.

Thanks.