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Mechanical Draughting N4: where the marks actually are
Engineering drawing at N4 level — loci, cam profiles, and the sectional, detail and assembly drawings a mechanical draughtsman produces.
N4 is being phased out. DHET is closing the NATED Report 191 programmes and replacing them with occupational qualifications. Its teach-out schedule (DHET TVET Circular TC 0134, 24 July 2025) gives the last national N4 examination for Engineering Studies as Trimester 2 2026. The last cohort gets a first sitting in Trimester 1 2026 and one repeat trimester — two chances, not the usual open-ended ones.
This is not a reason to stop. The National N Diploma can still be awarded up to 30 June 2029. Complete before 30 June 2026 and you receive the certificate exactly as now; after it, a DHET Statement of Results, which still counts toward the diploma. The Minister confirmed in June 2026 that qualifications already achieved stay valid and enrolled students should carry on.
Check your own dates with your college. The Department has since issued a revised circular, TC 0134(b), which it has not published, and further extensions were gazetted in June 2026 — so the date above is what DHET last put in writing publicly, not a promise about your intake.
What the exam is worth, module by module
These are DHET's own weight values. The syllabus states that a module's weight value gives the time to be spent teaching it and its share of the marks in the final exam — so this table is, in effect, the mark allocation of your paper. It totals 100.
| Module | Weight | |
|---|---|---|
| Assembly Drawing | 28 | |
| Sectional Drawing | 22 | |
| Detail Drawing | 22 | |
| Cam Profile | 16 | |
| Loci | 12 |
How to spend your time
- Assembly, Sectional and Detail Drawing are 72 of the 100 marks. This paper is overwhelmingly about producing correct, conventional drawings — not about theory.
- Assembly Drawing alone is 28 marks and is the longest single task on the paper. Practise it against the clock, because it is where the four hours actually go.
- Loci at 12 and Cam Profile at 16 are the constructional topics. They are quick marks once the method is automatic, so drill the constructions until they are.
The paper is 100 marks in 4 hours — about 2.4 minutes a mark. If a question is worth 10 marks and you are 25 minutes in, you are losing marks elsewhere by staying on it.
Getting in
You must have passed Passed N3 with Engineering Drawing N3.
Full time. Also offered part time.
How you are assessed
Two things have to go right, and students lose the year on the first one more often than the second.
1. Your college (ICASS) mark
You need at least 40% to qualify to write the final exam at all. Your final mark is 40% college mark plus 60% exam, so what you do before the exam is 40% of the subject.
2. The final examination
4 hours, closed book, out of 100 marks. You pass at 40%.
- Your promotion mark is 40% of your ICASS mark plus 60% of your exam mark.
- This is a FOUR-hour paper, not three like the other N4 subjects. Plan your drawing time accordingly — running out of time is the most common way to lose marks on it.
Also doing N4 this trimester?
These are the other N4 subjects we have syllabus breakdowns for.
- Mathematics N4Differential Calculus carries the most marks (25 of 100)
- Industrial Electronics N4Network Theorems carries the most marks (20 of 100)
- Electrotechnics N4Principles of Electricity carries the most marks (30 of 100)
- Mechanotechnics N4Hydraulic systems carries the most marks (20 of 100)
- Computerised Financial Systems N4Take-on balances and processing of supplier and customer transactions carries the most marks (35 of 100)
Source: DHET — Mechanical Draughting N4 Syllabus (Report 191, 2025–2026). Module names, weight values, admission requirements and assessment rules on this page are transcribed from that document. The study advice is ours.