1. Memorising Answer Letters
Working through the same set of questions until you know that the third one is B teaches you the set, not the material. An NHBRC tender of its own describes questions drawn at random per candidate, so the paper in front of you is not the paper anyone else describes online.
The fix is to be able to say why before you answer. If the sentence does not come, the tick was luck. Getting more from each question is the routine.
2. Skipping the Questions You Got Wrong
A wrong answer is the only thing in a practice session that carries new information, and it is the part people scroll past on the way to the score. Going back through every miss, reading the clause behind it and writing down what you actually believed is slower than taking another test and worth more than three of them.
3. Reading Instead of Retrieving
Re-reading the manual feels like studying because the material gets easier to recognise each time. Recognition is not recall, and the paper asks for recall. Close the book and answer something; the difficulty you feel is the learning.
4. Treating a Requirement as Unconditional
Most of what these standards say is conditional: it applies to a category of building, within a size, on a particular site classification, or only where a competent person has not designed something instead. A rule remembered without its scope will be right in practice and wrong in a question written to test the exception. Read the scope clause of the part, and the clause above a table, before trusting either.
5. Studying From Whatever Copy You Found
Standards are revised, and amendments are published against them, so two documents with the same title can disagree. Use the Home Builders Manual the NHBRC issued with your application as your primary source, check the edition on anything else, and treat a PDF of unknown origin as a hint rather than an authority. Reading a SANS reference covers editions and where authorised copies come from.
6. Buying “the Actual Exam Questions”
Nobody outside the NHBRC has the assessment’s questions. Material sold under that description is a practice pack with a dishonest label, and the label is the part you would be paying extra for. Judge preparation material on whether it shows you the standard behind each answer, and on whether it is honest about what is official and what is only what candidates report.
That is the test we ask you to apply to us as well: how we check and correct what we publish sets out what we verify, and what we have decided not to publish because we could not verify it.
7. Leaving the Admin Until the Week Before
You have two attempts, within 30 days of paying the application fee, and the clock is not affected by how ready you feel. Booking, the office you deal with, and what you may bring are all things to settle early — see what to confirm before assessment day — so that the last week is spent on the material.