What is the first step in systematic fault finding?

Start by gathering information: what happened, when, any changes made, symptoms observed, to understand the problem.

Replace the most likely faulty component immediately

Isolate and dismantle the affected equipment

Carry out an insulation resistance test

Gather information about the symptoms and history

What is the logical six-point fault finding approach?

Six-point approach: gather information, analyse symptoms, identify probable causes, test to locate fault, rectify, verify operation.

Gather info, analyse, identify possible causes, test hypothesis, rectify, verify

Isolate, prove dead, dismantle, replace, reassemble, energise

Inspect, test, record, report, repair, re-test

Identify, evaluate, control, record, review, communicate

What is the 'half-split' method in fault finding?

Half-split: test at the midpoint of a circuit to determine which half contains the fault, then repeat in the faulty half.

Splitting the load equally across two circuits

Testing at the midpoint to determine which half contains the fault

Disconnecting half the circuits to reduce the test current

Comparing readings from two identical installations

Free mock exam

Fault Finding — AM2 Online Knowledge Test Practice

Free topic-focused mock exam: 15 random questions from a pool of 17 on Fault Finding, drawn from the wider AM2 Online Knowledge Test bank. 25-minute timer, 70% to pass, worked explanation on every question. Use this when you've taken the full mock once and want to drill the topics you got wrong.

Questions: 15
Time limit: 25
Pass mark: 70%
Bank size: 17

Free · no sign-up · timer can be ignored · retake as many times as you want

Sample questions

01What is the first step in systematic fault finding?
- A.Replace the most likely faulty component immediately
- B.Gather information about the symptoms and history
- C.Isolate and dismantle the affected equipment
- D.Carry out an insulation resistance test
Why: Start by gathering information: what happened, when, any changes made, symptoms observed, to understand the problem.
02What is the logical six-point fault finding approach?
- A.Inspect, test, record, report, repair, re-test
- B.Gather info, analyse, identify possible causes, test hypothesis, rectify, verify
- C.Isolate, prove dead, dismantle, replace, reassemble, energise
- D.Identify, evaluate, control, record, review, communicate
Why: Six-point approach: gather information, analyse symptoms, identify probable causes, test to locate fault, rectify, verify operation.
03What is the 'half-split' method in fault finding?
- A.Comparing readings from two identical installations
- B.Disconnecting half the circuits to reduce the test current
- C.Testing at the midpoint to determine which half contains the fault
- D.Splitting the load equally across two circuits
Why: Half-split: test at the midpoint of a circuit to determine which half contains the fault, then repeat in the faulty half.

FAQ

Is the Fault Finding mock exam free?

Yes — 100% free, no sign-up needed. Questions are pulled at random from a substantial bank, with a worked explanation on every question after you submit.

Can I retake the mock exam?

Yes. Every attempt picks a different random selection and reshuffles the options, so each retake gives you genuinely new questions. No limit on retakes.

Does this count towards the real qualification?

No — this is independent practice material. To gain the actual qualification you need to sit the official assessment through an approved provider.