Built on AS/NZS 3000 & 3008

Go into the knowledge and design & calc sections knowing where you stand.

Capstone Coach covers the two written sections of the capstone's six: knowledge and theory, and design and calculation. 307 capstone-style questions, timed mocks and weak-spot analytics, with a worked solution and the clause behind every answer.

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Question bank by topic

307questions

Design & calculations 62

Earthing 32

Circuit protection 32

Cable selection 32

Maximum demand 31

IP ratings 30

Switchboard clearance 30

RCD protection 30

Testing & verification 28

Worked solution on every one Bank as at October 2026

What it covers

Built for the two sections you sit at a desk.

The capstone has six sections. Four are practical, on the tools, in front of an assessor. Two are written. Capstone Coach is built for the written two, and nothing else, so the practice is written in the style of the capstone.

Covered · Section 1 of 2

Knowledge and theory

Scenario questions written in capstone style, graded instantly, each with the clause cited.

Circuit protection
RCD protection
Earthing
IP ratings and switchboard clearance
Testing and verification

Covered · Section 2 of 2

Design and calculation

Maximum demand, cable selection and the calcs that sit behind a compliant install. Drill them in the scenario quizzes, then read the worked solution step by step.

Maximum demand
AS/NZS 3008 cable selection and voltage drop
Worked solution with the clause or table cited

Not covered

The four practical sections

Hands-on competency work in front of an assessor. Capstone Coach does not touch these. If that is where you need help, this is not it.

Get access $99 once

What's inside

Practise the way the exam asks. Then see exactly where you leak marks.

Scenario quizzes

307 questions, each with the clause behind it.

Real-world wiring scenarios written to capstone style: earthing, circuit protection, RCDs, maximum demand, cable selection. Answer, get graded on the spot, then read a step-by-step worked solution that cites the exact AS/NZS 3000 clause or AS/NZS 3008 table. You learn the rule, not just the fact. 236 are open to drill by topic. The other 71 are held back for the timed mocks.

Drill by topic, or take all topics at once

Every question, in order

01
The scenarioA real-world wiring situation, written to capstone style.
02
Your answer, graded on the spotRight or wrong, you know before you move on.
03
The worked solutionStep by step, so you can follow the reasoning, not just the result.
04
The clause behind itClause or table reference on every solution
05
Bookmark itSave the ones that caught you out and come back later.

Timed mock exams

Sit it under the clock before the clock matters.

Three lengths, all timed and scored, broken down by topic at the end so you know which area cost you. Sit the short one on a smoko, the long one when exam day is close.

Every mock includes one design and calculation question, with 5 extra minutes on the timer for it. The times shown include those 5 minutes.

Timer runs. Submit, or it submits for you
Score and pass line shown straight after
Topic breakdown on every attempt, kept in your history

Three lengths

10questions

A fast pulse of core questions before a shift or a study session.

20 min

20questions

The standard sitting. Enough to show which topics hold under time.

35 min

30questions

The longest sitting, for when exam day is close.

50 min

Weak-spot analytics

Find the clauses you keep getting wrong.

Every answer is tracked. The performance view maps your accuracy by topic, so you study the areas that need it instead of re-reading the whole book again.

Accuracy by topic, lowest first
Mock exam history and best score
Export your results as a CSV

What it tracks

AccuracyRight answers over everything you have attempted

Questions doneHow much of the bank you have covered

Mock examsAttempts, average, and your best score

Accuracy by topicLowest first, so your focus areas sit at the top.

Get access $99 once One payment · lifetime access · Stripe checkout

How it works

Pay once. Start tonight.

Pay $99, once

Secure checkout through Stripe on thecapstonecoach.com. No subscription, no renewal, nothing to cancel later.

Create your login

Email and password, or continue with Google. Works in the browser on your phone or a laptop.

Drill, sit, fix

Drill a topic. Sit a timed mock. Read the worked solutions. Then let the performance view tell you what to do next.

Free sample question

Try one from the bank. A real design and calc question, free.

Straight from the app, word for word. Pick your answer, then check the worked solution.

Design & Calculations Intermediate

Two circuits share a conduit:

Circuit A: 25 A water heater
Circuit B: 20 A general-purpose circuit

Both cables are copper TPS. The conduit runs 50 m through a wall.

Using AS/NZS 3000 and AS/NZS 3008.1.1, determine the required cable size for each circuit after considering grouping, current-carrying capacity, voltage drop, and maximum demand.

What cable size for each circuit?

Show the worked solution

Given: 2 circuits in one conduit, L = 50 m, Ca = 1.0. Grouping Cg = 0.85 (Table 24).

Circuit A (25 A):

CCC: Iz ≥ 25/0.85 = 29.4 A → 4 mm² (34 × 0.85 = 28.9 A ✓).
VD: 4 mm² (11.2) → 14.0 V (6.1%) ✗; 6 mm² (7.3) → 9.13 V (3.97%) ✓.
→ 6 mm².

Circuit B (20 A):

CCC: Iz ≥ 20/0.85 = 23.5 A → 2.5 mm² (25 × 0.85 = 21.25 A ✓).
VD: 2.5 mm² (18) → 18.0 V (7.83%) ✗; 4 mm² (11.2) → 11.2 V (4.87%) ✓.
→ 4 mm².

Final: A = 6 mm², B = 4 mm² (voltage drop governs both).

Clauses and tables cited

AS/NZS 3000 Clause 3.5.2 (CCC)
AS/NZS 3000 Clause 3.6 (VD)
AS/NZS 3008.1.1 Table 9 (CCC)
AS/NZS 3008.1.1 Table 24 (grouping)
AS/NZS 3008.1.1 Table 41 (VD)

Get access $99 once 307 questions · worked solution on every one

Who built it

“I built this app because I know first-hand how challenging the capstone is.”

“The questions are designed around the type of things you’ll actually be tested on, so you can study smarter, build confidence, and give yourself the best chance of passing. I also struggled when I went for my capstone, as there is hardly anything useful available on the internet.”

Ben Liebermann, who built Capstone Coach

No subscription

$99 once. Not $99 a month.

One payment, lifetime access. Still yours when you are licensed and want to check a clause on site.

$99 AUD · one payment ·
lifetime access

307 questions, graded instantly
Worked solution and clause reference on every question
Timed mock exams in three lengths
Weak-spot analytics by topic
Saved questions and CSV export
Lifetime access, including new questions as they are added

Get access $99 once

Checkout is on thecapstonecoach.com via Stripe, then you create your login. Access is instant, so we do not offer change-of-mind refunds. This does not affect your rights under the Australian Consumer Law, including a remedy if something is faulty.

Questions before you buy? Contact Capstone Coach. Already paid? Log in.

Questions

Straight answers.

Which parts of the capstone does it cover?

The electrical capstone has six sections. Four are practical, hands-on competency assessments. Two are written: knowledge and theory, and design and calculation.

Capstone Coach covers those two written sections. It does not cover the four practical ones.

Is it a subscription?

No. One payment of $99 and the access is yours, with no renewal. Lifetime access includes new questions as they are added. It stays useful after you are licensed, when you want to check a clause on site.

What standards is it built on?

AS/NZS 3000, the Wiring Rules, and AS/NZS 3008 for cable selection, current-carrying capacity and voltage drop in the design and calculation questions. Every worked solution cites the clause or table behind the answer.

Does it replace my training?

No. It is an independent study tool for practice, not a training provider and not a guarantee of a result. Your RTO and your supervisor still do their jobs. This helps you walk in knowing where you stand.

What if I don't pass?

Capstone Coach is practice, not the assessment, and nobody can promise a result. Your scores and mock history stay in your account, so you can keep practising for the next sitting.

Does it work on my phone or laptop?

Yes. It runs in your phone's browser, nothing to install. Log in on a laptop later and your scores and mock exam history are still there.

Can I get a refund?

Access is instant and the full question bank opens the moment you pay, so we do not offer change-of-mind refunds. This does not affect your rights under the Australian Consumer Law, including a remedy if something is faulty. If something is wrong, contact Capstone Coach.

Is Capstone Coach affiliated with Standards Australia?

No. Capstone Coach is an independent study tool. It is not affiliated with or endorsed by Standards Australia.

The capstone date won't move. Start now, twenty minutes at a time.

307 questions, timed mocks, worked solutions and a performance view that tells you what to study next. $99 once.

Get access $99 once