Common Technical Mistakes

Technical questions are often lost through avoidable reading and checking errors rather than a complete lack of construction knowledge. Use this guide to identify habits that cost marks and replace them with a calmer assessment method.

Start Free NHBRC Practice Test

Read the full question

Do not select an answer after reading only the first line. Look for qualifiers such as most appropriate, first, safest, except, not or best, because they change what the question is asking.

Check units, conversions and dimensions

Keep millimetres, metres, square units and cubic units distinct. Write a short conversion down when needed, and check that a dimension or quantity belongs to the element described rather than a nearby line or note.

Slow down answer selection

Choosing the first familiar phrase can hide a more precise option. Read every option, eliminate answers that contradict the question or basic construction logic, and choose the remaining answer that directly addresses the stated problem.

Keep safety and sequence in view

Do not ignore an obvious safety implication because the question appears technical. Also check the construction sequence: an answer that requires an element to be installed, inspected or protected before the preceding work is complete may be the wrong option.

Separate materials and terminology

Similar terms are not interchangeable. Check whether the question refers to a material, component, process, defect or control, and do not substitute a familiar material or construction term without checking its actual function.

Use drawings and revise weak areas

When a drawing is included, identify its view, scale, units, dimensions and notes before interpreting it. After practice, revise weak competency areas instead of repeating only the questions you already know.

Assessment-day checklist

Before submitting an answer, check:

Continue reading

Start preparing

Three free practice tests of twelve questions each, then R699 once-off for 90 days of access to the full 200-question preparation bank. No automatic renewal.

Start Free NHBRC Practice Test

Contractor Academy is an independent preparation platform and is not affiliated with or endorsed by the NHBRC. Our material is independent preparation content based on applicable South African building standards and subject matter. It does not reproduce NHBRC examination papers and no assessment outcome is guaranteed. For registration requirements, assessment procedure, fees and current rules, consult the NHBRC directly.

WhatsApp Support