Electrical Licence Practice AS/NZS 3000
Free AS/NZS 3000 practice questions for Australian and New Zealand electricians. 5,000+ Wiring Rules questions with weak-point drilling, mock exams and plain-English explanations mapped to the standard.
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What the AS/NZS 3000 exam actually tests
The Australian and New Zealand electrical licence exam — sometimes called the capstone, the AS/NZS 3000 assessment or the EWRB written depending on which side of the Tasman you're on — is the gate between Cert III completion and being a licensed sparkie. It tests your fluency with the Wiring Rules: when to use 30 mA RCDs, how to size mains for a given maximum demand, what disconnection times TN systems require, and how to verify an installation before you energise it.
Most candidates underestimate two things: how dense the regulations are, and how quickly the time pressure stacks up. Voltly fixes both by giving you a question bank that mirrors the real exam in style and difficulty, then drilling exactly the regulations you keep getting wrong.
Voltly's AS/NZS 3000 question bank
- 5,000+ AU/NZ questions tagged to clauses in AS/NZS 3000:2018, including Amendment 2.
- Cable-sizing calcs from AS/NZS 3008.1.1 — current carrying capacity, voltage drop, derating factors.
- Verification & testing from AS/NZS 3017 — insulation resistance, earth continuity, RCD trip times.
- Earthing systems — MEN, TT, TN-S — and the disconnection rules that go with each.
- Switchboards and protection — coordination, discrimination, arc fault detection.
- Fault-finding scenarios — diagnostic-style questions that mirror practical assessments.
Why gamification works for licence prep
Cert III electricians study for the licence exam while working 40+ hours on the tools. You don't have weekends to lose to a textbook. Voltly's daily challenge, streaks, XP and rank system are designed for 10-minute sessions on the bus, at smoko, or on the couch after dinner. A 14-day streak puts you about 1,500 questions deep — that's enough to start seeing your weak-point chart go from red to green.
5 free sample questions
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Q1.The maximum touch voltage permitted under fault conditions in a domestic installation is:+
- 25 V
- 50 V ✓ correct
- 120 V
- 230 V
Why: AS/NZS 3000 Clause 1.5 — 50 V AC is the conventional touch-voltage limit before disconnection is required.
Q2.Per AS/NZS 3000, every final sub-circuit supplying socket-outlets rated ≤ 20 A in domestic premises shall be protected by an RCD with rated residual current of:+
- 10 mA
- 30 mA ✓ correct
- 100 mA
- 300 mA
Why: Clause 2.6.3.2.2 — 30 mA RCD protection is mandatory for socket outlets ≤ 20 A in domestic premises.
Q3.Minimum CSA of a main earthing conductor for a 35 mm² active copper conductor:+
- 6 mm²
- 10 mm² ✓ correct
- 16 mm²
- 25 mm²
Why: AS/NZS 3000 Table 5.1 — 35 mm² active requires 10 mm² main earthing conductor (copper).
Q4.AS/NZS 3008 specifies which factor for a single-core cable in air at 40 °C ambient?+
- 1.00
- 0.94 ✓ correct
- 0.87
- 0.71
Why: AS/NZS 3008.1.1 Table 27 — ambient air correction factor at 40 °C for thermoplastic insulation is 0.94.
Q5.The verification test for insulation resistance on a 230/400 V installation must read at least:+
- 0.25 MΩ
- 0.5 MΩ
- 1.0 MΩ ✓ correct
- 10 MΩ
Why: AS/NZS 3017 — insulation resistance ≥ 1 MΩ at 500 V DC for circuits up to 500 V.
FAQ
What is the AS/NZS 3000 electrical licence exam?+
It's the technical assessment electricians sit to be licensed in Australia and New Zealand. The exam tests your knowledge of AS/NZS 3000:2018 (Wiring Rules), AS/NZS 3008 (cable selection) and AS/NZS 3017 (verification).
How is AS/NZS 3000 different from NEC or BS 7671?+
Different standards body and different rules — earthing systems, voltage drop limits, RCD requirements and switchboard rules all differ. Voltly auto-switches the question pool when you set your country to AU or NZ.
Will Voltly help with the EWRB practical in NZ?+
Yes for the theory side. Voltly drills regulation, calculation and fault-finding questions that map to EWRB written assessments. The on-tools practical still requires supervised work.
How many AS/NZS 3000 questions does Voltly have?+
5,000+ AU/NZ-tagged questions across regulations, cable sizing, protection, earthing, switchboards, verification and fault-finding.
Is the 2018 amendment included?+
Yes — all questions reflect AS/NZS 3000:2018 including Amendment 2 (RCD protection extensions). We update the bank whenever the standard updates.