Free mock exam
Testing Procedures — PAT Testing (C&G 2377) Practice
Free topic-focused mock exam: 30 random questions from a pool of 41 on Testing Procedures, drawn from the wider PAT Testing (C&G 2377) bank. 35-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
- 30
- Time limit
- 35 min
- Pass mark
- 70% · 21/30
- Question bank
- 41
Free, no sign-up. Retake as many times as you like — different questions each time.
Sample questions
01What is the earth continuity limit for a Class I appliance, before adding the resistance of its supply cable?
- A0.5 ohms
- B0.1 ohms
- C2.0 ohms
- D1.0 ohms
Why: The IET Code of Practice limit is 0.1 ohms plus the resistance of the supply cable, so a longer or thinner lead allows a slightly higher reading.
02What test voltage is normally used for insulation resistance testing of 230 V appliances?
- ADepends on appliance rating
- B1000V DC
- C500V DC
- D250V DC
Why: Insulation resistance is normally tested at 500 V DC. Where 500 V could damage IT equipment or operate its surge protection, the 5th edition of the IET Code of Practice recognises 250 V DC instead.
03What is the minimum acceptable insulation resistance for Class I appliances?
- A5.0 MΩ
- B0.5 MΩ
- C1.0 MΩ
- D2.0 MΩ
Why: The minimum acceptable insulation resistance for Class I appliances is 1.0 MΩ (megohm).
Common questions
Is the Testing Procedures mock exam free?
Yes, it is free with 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 as a qualification?
No. This is independent practice material and does not award a qualification, card or certificate. Where a subject has a formal qualification or card, you gain it through an approved provider.