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100+ Free QLD Electrical Licence Practice Questions

Queensland Electrical Licence Capstone Assessment practice questions are available now; exam metadata is being verified.

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2026 Statistics

Key Facts: QLD Electrical Licence Exam

100

Practice Questions

OpenExamPrep

~2h15m

Written Theory Time

Capstone (MEM10025)

AS/NZS 3000

Core Standard

Wiring Rules

5%

Max Voltage Drop

AS/NZS 3000

0.4 s / 5 s

Disconnection Times

AS/NZS 3000

Open book

Reference Materials Permitted

Capstone

The Queensland Electrical Licence Capstone Assessment (aligned to the national MEM10025 unit) is the final assessment electrical apprentices complete before applying to the Electrical Safety Office for a Queensland electrical work licence. It has a written theory examination of about 2 hours 15 minutes in which AS/NZS 3000 and reference standards may be used, plus a separate practical examination, and is competency-based. The theory tests the AS/NZS 3000 Wiring Rules, cable selection and voltage drop (AS/NZS 3008), maximum demand calculations, circuit protection and division of circuits, earthing and the MEN system, short-circuit and earth-fault-loop impedance, consumer mains and submains, Queensland electrical safety legislation, and testing and verification. This free prep includes 100 research-based practice questions with explanations and an AI tutor.

Sample QLD Electrical Licence Practice Questions

Try these sample questions to test your QLD Electrical Licence exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under AS/NZS 3000, what is the maximum permissible voltage drop from the point of supply to any point of consumption in a consumer's electrical installation?
A.2.5%
B.5%
C.7%
D.10%
Explanation: Clause 3.5 of AS/NZS 3000:2018 limits total voltage drop to 5% of the nominal supply voltage measured from the point of supply to any point of consumption. Keeping within this limit ensures equipment receives adequate voltage to operate correctly.
2In the Multiple Earthed Neutral (MEN) system used in Australia, where is the link connecting the neutral bar to the earth bar required to be installed?
A.At every socket outlet
B.At the main switchboard only
C.At each distribution board
D.At the supply transformer only
Explanation: AS/NZS 3000 Clause 5.5 requires the MEN connection (the link between the neutral and earth bars) to be made at the main switchboard of the installation. Making this connection at downstream distribution boards would create parallel neutral paths and is not permitted.
3What is the maximum disconnection time required by AS/NZS 3000 for a final subcircuit rated up to 32 A in a TN earthing system?
A.0.1 s
B.0.4 s
C.1 s
D.5 s
Explanation: AS/NZS 3000 Table 8.2 (formerly Table 5.1) requires final subcircuits not exceeding 32 A to disconnect within 0.4 seconds under earth-fault conditions in a TN system. The faster time reflects the higher shock risk on circuits people contact directly.
4Under AS/NZS 3000, what is the maximum rated residual current of an RCD used to provide additional protection for socket-outlet final subcircuits?
A.10 mA
B.30 mA
C.100 mA
D.300 mA
Explanation: AS/NZS 3000 Clause 2.6 requires RCDs with a rated residual current not exceeding 30 mA to protect final subcircuits supplying socket-outlets and lighting. The 30 mA threshold provides protection against ventricular fibrillation during direct contact.
5When calculating maximum demand for a single domestic installation using the assessment method, which appendix and table of AS/NZS 3000 provides the demand factors for final subcircuits?
A.Appendix B, Table B1
B.Appendix C, Table C1
C.Appendix D, Table D1
D.Section 2, Table 2.1
Explanation: Appendix C of AS/NZS 3000 sets out maximum demand. Table C1 provides the demand allowances for final subcircuits in domestic (single-residence) installations, covering lighting, socket-outlets, ranges, water heaters and other loads.
6A single-phase domestic installation has a calculated maximum demand of 63 A. What is the minimum recommended rating of the main switch protecting the consumer mains?
A.40 A
B.50 A
C.63 A
D.80 A
Explanation: The main switch and consumer mains must be rated to carry at least the calculated maximum demand. With a maximum demand of 63 A, the main switch must be rated no less than 63 A so it can carry the full demand without overload.
7According to AS/NZS 3008.1.1, at what reference ambient air temperature are the tabulated current-carrying capacities for cables installed in air based?
A.25 °C
B.30 °C
C.40 °C
D.50 °C
Explanation: AS/NZS 3008.1.1 bases its in-air current-carrying capacity tables on a reference ambient air temperature of 40 °C, reflecting Australian conditions. Where the actual ambient differs, a rating (derating) factor from the relevant table must be applied.
8Under the Queensland Electrical Safety Act 2002, who is the regulator responsible for administering electrical licensing and electrical safety?
A.WorkSafe Victoria
B.the Electrical Safety Office (within the Office of Industrial Relations)
C.Energy Safe Victoria
D.the Australian Energy Regulator
Explanation: The Electrical Safety Act 2002 (Qld) is administered by the Electrical Safety Office (ESO), part of the Queensland Office of Industrial Relations. The ESO manages electrical licences and enforces electrical safety laws across Queensland.
9What is the primary purpose of testing the continuity of the earthing system before energising a new installation?
A.To measure the insulation resistance of cables
B.To confirm a low-impedance path exists for fault current to operate protective devices
C.To verify the correct phase rotation
D.To measure the load current of the installation
Explanation: Earth continuity testing confirms that protective earthing and equipotential bonding conductors form a continuous low-impedance path. This path is essential so that earth-fault current is high enough to operate the protective device and clear the fault within the required disconnection time.
10Consumer mains supply a switchboard. Which conductors does the term 'consumer mains' specifically describe under AS/NZS 3000?
A.Conductors between two distribution boards within the installation
B.Conductors between the point of supply and the main switchboard
C.The final subcircuit conductors to socket outlets
D.The conductors of the supply network upstream of the point of supply
Explanation: AS/NZS 3000 defines consumer mains as the conductors between the point of supply (such as the network connection point) and the main switchboard or main distribution point of the installation. They carry the whole installation's maximum demand.

About the QLD Electrical Licence Practice Questions

Verified exam format metadata for Queensland Electrical Licence Capstone Assessment is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.