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2921‑34City & Guilds 2921‑34 online test

EV Charging Course & Mock Exams

For the City & Guilds 2921‑34 exam on domestic and small commercial EV charging

  • 236 exam‑style questions
  • 108 references
  • 35 lessons
  • 3 mock types
  • about 5½ hours of reading

Contents

Weighted like the 30‑question test

8 modules · 35 lessons

  1. Start here: The exam, the books and the law 2 of the 30 questions
  2. Modes: Charging modes, connectors and connection cases 4 of the 30 questions
  3. EVSE features: Charge point features, built-in protection and smart functions 4 of the 30 questions
  4. Planning: Site assessment, maximum demand and DNO notification 4 of the 30 questions
  5. PME & earthing: PME, open-PEN faults and earthing options 3 of the 30 questions
  6. Design: Circuit design, protective devices, cables and labels 5 of the 30 questions
  7. Testing: Testing, commissioning and handover 4 of the 30 questions
  8. V2X: Vehicles as energy storage: V2G, V2H and smart charging 4 of the 30 questions
Every module and its lessons
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City & Guilds 2921‑34

The 2921‑34 online test at a glance

Open book, paper copies

Questions
30
Time
1hour
Pass mark
approx. 75%
Open book
IET CoP + BS 7671
Calculator
AllowedNon-programmable

Pass mark: approx. 75%

About 22 to 23 of 30, so only 7 or 8 wrong answers. Aim for 85% or more in practice to leave a margin.

What you can take in

  • IET Code of Practice for Electric Vehicle Charging Equipment Installation (5th edition)
  • BS 7671

Paper copies only. The handbook still names the 2022 edition of BS 7671, so confirm with your centre which edition to bring.

A non-programmable scientific calculator is allowed.

Sat at an approved centre

There is no practical assessment for 2921‑34. You sit the online test at a City & Guilds approved centre, which checks your entry qualifications first. This course doesn’t give hands-on competence, and it doesn’t make you OZEV-authorised or scheme-registered.

City & Guilds Level 3 Award in the Requirements for the Design and Installation of Domestic and Small Commercial Electric Vehicle Charging Installations (2921‑34), Ofqual 610/4640/1. RegsReady is independent and isn’t affiliated with City & Guilds.

See inside

  1. Example lesson screen: “How the 2921-34 exam works, and what replaced 2919-01”, a free lesson, opening with the route to the regulation in your book.

    Read this lesson free

    Lesson

    Short, practical lessons with the route to every regulation they use.

  2. Example practice screen: an exam-style question answered correctly, with the explanation, the regulation and the route through your book.

    Practice

    Every answer explained, with the regulation and where it is in your book.

  3. Example “Find it in your book” drill: a question with no options, a 90-second clock and three ways to rate how you got on.

    Find it

    The question without options: find it in your own copy against the clock.

  4. Example mock exam screen: question 12 of 30, 9 answered and 2 flagged, with 51 min left.

    Mock

    The real format: 30 questions in 1 hour, spread like the City & Guilds test.

  5. Example mock result: 26 out of 30, 87%, a pass, in a rating plate framed by the green-and-yellow earth stripe.

    Results

    Your score by module, with every question explained, so you know what to fix.

What’s inside, weighted like the exam

City & Guilds publishes how many of the 30 questions come from each learning outcome. Every module is mapped to them, so each tab is as long as its share of the test and every full mock follows the same split.

Open a module to see its lessons. One lesson is free to read now.

  1. The exam, the books and the law 5 lessons · 1 free to read Start here2 questions of the exam

    How the 2921‑34 exam works and what replaced 2919‑01, tabbing the Code of Practice and BS 7671, and the laws and guidance behind EV charging installations (learning outcome 1).

    1. How the 2921‑34 exam works, and what replaced 2919‑01 Free lesson
    2. Full course: Tabbing the Code of Practice and BS 7671 for a 60-minute open-book test 9 min
    3. Full course: The law for EV installations: EAWR, HASAWA, ESQCR, the Building Regulations and traffic orders 11 min
    4. Full course: Guidance that matters: the Code of Practice, Guidance Notes, the On-Site Guide, RC59 and manufacturer's instructions 10 min
    5. Full course: The Smart Charge Points Regulations, plus 2026 context outside the test specification 11 min
  2. Charging modes, connectors and connection cases 4 lessons Modes4 questions of the exam

    Modes 1 to 4 and their limits, BS 1363-2 “EV” socket-outlets, Type 1, 2 and 3 vehicle connectors, and connection cases A, B and C.

    1. Full course: Modes 1 to 4, their features and intended use 9 min
    2. Full course: Mode 2 limits, and why a BS 1363-2 "EV" socket-outlet matters 9 min
    3. Full course: Vehicle connectors: Type 1, Type 2 and Type 3 8 min
    4. Full course: Connection cases A, B and C, tethered and untethered 8 min
  3. Charge point features, built-in protection and smart functions 4 lessons EVSE features4 questions of the exam

    Built-in RCDs, overcurrent devices and RDC-DDs, open-PEN detection, timers, energy meters, security and communications, multiple outlets and load management.

    1. Full course: Inside the charge point: built-in RCDs, overcurrent devices and RDC-DDs 10 min
    2. Full course: Open-PEN detection: 70 V and 207–253 V monitoring 10 min
    3. Full course: Timers, energy meters, security and communications 10 min
    4. Full course: Multiple outlets, feeder pillars, load curtailment and load shedding 9 min
  4. Site assessment, maximum demand and DNO notification 5 lessons Planning4 questions of the exam

    Siting the charge point, maximum demand and diversity, adequacy of supply, identifying the earthing arrangement, DNO notification, planning and traffic orders.

    1. Full course: Siting the charge point: parking, hazards, fire risk, IP and access 10 min
    2. Full course: Maximum demand, diversity and load curtailment 10 min
    3. Full course: Adequacy of supply: cut-outs, looped services, landlord and unmetered supplies 10 min
    4. Full course: Identifying the earthing arrangement, and when to involve the DNO 10 min
    5. Full course: DNO notification (connect-and-notify vs apply; G98/G99/G100 for V2G), planning and Traffic Management Orders 11 min
  5. PME, open-PEN faults and earthing options 4 lessons PME & earthing3 questions of the exam

    Why an open PEN is dangerous at a charge point and why an RCD won’t help, the 722.411.4.1 options for using PME outdoors, going TT, and TN-S and three-phase traps.

    1. Full course: Why an open PEN is dangerous at an EV charge point, and why an RCD won't help 9 min
    2. Full course: The 722.411.4.1 options for using PME outdoors 10 min
    3. Full course: Going TT: earth electrodes, separation zones, EPR/GPR and simultaneous contact 10 min
    4. Full course: TN-S treated as PME, three-phase supplies and other earthing traps 10 min
  6. Circuit design, protective devices, cables and labels 5 lessons Design5 questions of the exam

    Dedicated and distribution circuits, RCD selection with RDC-DDs and the RDC-PD added in A4, overcurrent protection, AFDDs and SPDs, cable selection and voltage drop, positioning, fire safety and labels.

    1. Full course: Dedicated circuits, distribution circuits and diversity 9 min
    2. Full course: RCD selection: Type A, F and B, RDC-DD, and the RDC-PD added in A4 10 min
    3. Full course: Overcurrent protection, short-circuit thermal constraints (435.1), AFDDs and SPDs 10 min
    4. Full course: Cable selection and voltage drop: 5%, or 4% with an open-PEN device 10 min
    5. Full course: Positioning: buried cables, IP44, IK08, fire safety (BS 5839-6, RC59) and labels 9 min
  7. Testing, commissioning and handover 4 lessons Testing4 questions of the exam

    What’s different when testing EV circuits, earth electrode test methods E1, E2 and E3, vehicle simulators, loop impedance near inverters, RCD testing, and the handover documents.

    1. Full course: What's different when testing EV circuits 9 min
    2. Full course: Earth electrode testing: methods E1, E2 and E3 10 min
    3. Full course: Vehicle simulators, loop impedance near inverters, and the upstream/downstream RCD method 10 min
    4. Full course: Handover: documents, PME risk assessment forms B1 and D1, client information and firmware 10 min
  8. Vehicles as energy storage: V2G, V2H and smart charging 4 lessons V2X4 questions of the exam

    Prosumer installations, EEMS and island mode, V2G, V2H and V2X uses and requirements, overcurrent protection when fault current drops in island mode, and smart charging.

    1. Full course: Prosumers, PEIs, EEMS and island mode 10 min
    2. Full course: V2G, V2H and V2X: uses and requirements 11 min
    3. Full course: Overcurrent protection when fault current drops in island mode 10 min
    4. Full course: Smart charging applications and V2X handover 10 min

The whole paper 30 questions

City & Guilds publishes how many questions come from each learning outcome. Where an outcome spans several modules, the split between them is ours.

Mock exams, as many as you like

Each paper is spread across the learning outcomes like the real 2921‑34 test. The strip on each card is that paper, one block per question.

The real format

30questions · 1 hour

Full mock (2921‑34 format)

30 questions in 1 hour, spread across the five learning outcomes the same way as the City & Guilds 2921‑34 test.

  • Timed
  • Answers at the end
  • Flag and review

60questions · 2 hours

Syllabus deep check

60 questions in 2 hours at the real exam’s pace: twice the coverage, for a check on every learning outcome.

  • Timed
  • Answers at the end
  • Flag and review

10questions · 20 min

Quick 10 (timed)

10 questions in 20 minutes, at the real exam’s 2 minutes a question.

  • Timed
  • Answers at the end
  • Flag and review

Plus topic practice for every module, Smart review, a missed-questions drill, the “Find it in your book” drill and an Amendment changes drill.

Example readiness score of 72 out of 100, “Nearly there”: exam ready needs 80 or more and a passed full mock.

A readiness score that doesn’t flatter you

We don’t call you exam ready until your score is 80 or more and your latest full 30‑question mock is a pass. The real pass mark is approx. 75%, so you go in with a margin.

Guides for the 2921‑34

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