The field tools that sync to your device via iCloud are a smart addition. Having digital certificates and test schedules readily available is convenient. The reference cards and calculators work well in the browser, making it easy to access information on the go. It seems designed for practical use by electricians who need quick access to data.
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Love the variety of tools! The calculators and fault coding trainer are brilliant. Perfect for site work and exam prep.
The site lists 556 practice questions and several tools, but the pricing structure is not immediately obvious. It is unclear whether the calculators are included or require a separate subscription. For someone considering this company, it would be helpful to see the costs broken down before committing to a purchase.
I found the 2391 Prep materials really helpful for getting ready. The split between open and closed book questions matches the exam format well. Having the calculators and reference cards available in the browser is great for quick lookups. It seems like a thorough resource for anyone wanting to pass the inspection and testing certification.
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About 2391 Prep
2391 Prep is a study resource focused on the City & Guilds 2391-52 Inspection and Testing qualification. It provides 445 practice questions divided into open book and closed book formats that mirror the structure of the exam, along with four calculators, reference cards, and field tools. The content is written against BS 7671:2018+A4:2026 Part 6 and is organised across seven syllabus areas covering topics such as initial verification, periodic inspection, and test procedures. Each syllabus area includes a study guide, free practice questions, and information about its weighting in a 60-question mock exam.
- Website
- 2391prep.co.uk

